Core i7 Overclocking by Batch #

As I think a lot of us have noticed, there are almost two lines of bloomfield cpus, with the two main batches (a&b) differing greatly in the vcore needed to achieve an oc.

So to all core i7 owners, please respond to this thread with your batch #, a screenshot of cpu-z, realtemp or coretemp, and prime95 on small fft showing your load temps, and what cooling you are using. There is a good deal of variation among core i7 chips with load temps and voltages, and its interesting to see the correlation with the batch #s.

For those that don't know, the batch # can be found on the retail box, on the bottom of the sticker, under the label of FPO/Batch #. If this thread gets a large enough sample of batches, I will post up a chart of the varying results.

To start off, here is mine: 3837B076

http://img158.imageshack.us/img158/4196/prime95ij2.jpg
cooled by cooler master 212 (under vigor brand)

Now as promised, here is a chart of all of the results posted here and the ones that Avan gathered from the main oc'ing thread. http://www.xtremesystems.org/forums/...7&postcount=35

****New Announcement**** I have published this spreadsheet for all to edit on google docs. If you don't see your info posted, feel free to edit in your information while adhering to the layout http://spreadsheets.google.com/ccc?k..._RqTL5QA&hl=en

I'll be nr 2 then.
This will be great for anyone buying an i7 ;)

Mine is cooled by an EK Supreme (WC)
Batch : 3837A909
http://i43.tinypic.com/w0lyeo.jpg

Mine is 3837B194

http://users.telenet.be/nils-marleen/3837B194ok.jpg

Aircooled by a Thermalright Ultra Extreme. Date must be 03/01/2009 of course!

Quote:

---

Originally Posted by Nilos

Mine is 3837B194

---

Is that my new CPU nilos :rofl: You already on the Giga Extreme version now ?

batch in sig.

sub-d will edit with info when i get home

Quote:

---

Originally Posted by SmokeyTheBandit

I'll be nr 2 then.
This will be great for anyone buying an i7 ;)

Mine is cooled by an EK Supreme (WC)
Batch : 3837A909

---

That's a great chip! I haven't been able to boot higher than 3.8GHz on my "A" batch, at least below 1.33v although I haven't had time to mess with it though.

come on guys, lets keep this going.

This is not max, it's my 24/7 settings......still tweaking
Batch #3838B079
1.296v under load, HT on
The rest is in my sig.
Attachment 92328Attachment 92999

HT off.

http://img.photobucket.com/albums/v6...tressbatch.jpg

Batch #3838A505

Batch # 3835A699
24/7 settings, HT off.
Cooled by handmade copper waterblock.
Attachment 92350

Hi

i have a 920 batch 3835A766 @ 21 x 200 with tubro on and HT off
cpu volt 1.425
watercooled
temps idle 39 40 42 40
load 69 69 72 70
temp at idle abit high but no problems

cheers

mark

Attachment 92746

I have an i7-920 batch 3841A507 and will let you guys know what it does on air with a TRUE when I get a mobo and some RAM to run with it.

i7-920 3841A383 from Newegg:

These are all with LinX x 20 and Prime blend stability:

4.0ghz (20x200 turbo off) @ 1.30000v bios, 1.264v load with HT off, 1.335v QPI, 8-8-8-21-1T, 1.65v DRAM (1.66 BIOS), max LinX temp 67c on TRUE 120 push-pull
4.0ghz (20x200 turbo off) @ 1.40625v bios, 1.360v load with HT on, 1.375v QPI, 8-8-8-21-1T, 1.65v DRAM (1.66 BIOS), max LinX temp 83c on TRUE 120 push-pull.

Edit, added recently:
3.8ghz (19x200 turbo off) @ 1.21875 bios, 1.184v load, 1.20v idle, HT enabled, 1.275v QPI, 8-8-8-21-1T, 1.65v DRAM (1.66 BIOS), max LinX temp 63c on TRUE 120 push-pull. I got HT disabled down to 1.154v load I think for LinX but I had to bump it all the way back up to 1.184v for Prime blend even with HT off.

Higher voltages were required for Prime blend stability vs LinX x 20 even though LinX has highest temps. I think this is due to memory system load because I had to increase vQPI a bit for HT as you can see.

http://www.xtremesystems.org/forums/...postcount=1273

batch:3837A909 (Same as SmokeytheBandiet:D)

HT >enabled
Turbo >disabled
max bclock 222.5 x 19
http://i82.photobucket.com/albums/j2...22x19_linx.jpg

My 3838A685 920 sucks. It hates the 20x and despises the 21x, only runs well with 19x which means I can't OC this sucker past 4,05Ghz stable really. Currently on 190x21 semi-stable, needs 1,5V Vcore though (+ I am on phase) :p:
Avoid 3838A...

3837A715 here, under the stock cooler @1.352v under stress, 1.094 idle.
http://www.chemfy.fi/series/files/Overclockan/i7.jpg

My mobo is the EVGA X58 TRI-SLI with the original bios. I'm having a very hard time overclocking this thing, uncore and QPI multipliers are on minimum and I still get instant bluescreen at 3.7ghz.
Mem is 3x G.Skill DDR3-1333 CL9, but it won't work if I set it to multi's so that they're running DDR3-1375 at 1.65v (stock is 1.5).

EDIT:

I updated the bios to the newest one, and got the mem running at 1372mhz CL9. Still no go about reaching past 3.7ghz, waiting for a new cooler.

bump

New CPU, new luck I guess: i7 940 3835A730

4,4 Ghz, HT enable, 1,5V:

http://database.he-computer.de/Bilde...23x_4.4Ghz.jpg

Needs 1,304V for 4Ghz and around 1,38 for 4,2, haven't tried that one really hard yet. Likes 21x and 23x mult equally well and hates the 22x.

To all the people using IntelBurnTest on i7 with HT on: It's pretty useless as it only loads up half the cores, use eitehr prime blend or LinX for now.

So can we confirm that the earlier the batch the better ? the trend is getting clearer.
And even multies are i7's enemies.
Btw, that is on cascade, I wonder if it can hold 4.4Ghz w/ HT=on using water cooling.

And you can use two instances of IntelBurnTest to take 100% CPU for i7 :D

Are you refering to me?

If so No, that is on my maxed-out 1/3hp Single Stage which I run 24/7 ;)
Temps are pretty bad under load (CPU gets way into positive range) so yeah, I guess my chip could do 4,4 with HT on on high end water as well.
And yeah, you can run 2 instances IBT but people here are only running 1 ;)
And running LinX is way easier and more comfortable than 2x IBT, it's like back in the Dualcore days with prime vs. Orthos :)

Although I am sure IBT will be adapted soon enough.

Yahh jcool I was referring to you.
Are you sure linX is using all cores/100% CPU on i7 ?

BTW, what is the earliest Retail i920 (wee/batch), so far I have seen week 35 ?

Batch 3836A405
12 hrs prime stable with 21 multi (i940 turbo off) HT on
4.0ghz with 1.31 vcore cpuz load
4.1ghz with 1.34 (pic)
4.2ghz with 1.376.. 24/7 (post in sig)

We need apples to apples comparisons for load testing. I am using less voltage for LinX vs Prime blend, every single time.

Edit: I'm making another post on the subject of comparisons and I also think I found out why I saw this strange behavior. I think I needed a slight vCore bump for Prime blend only because I was running specifically @ 20 x 200 with the settings I had. Honestly I can't even say for sure that I needed it at all but it was the last change I made and it passed the test, could have just been luck. I made this post when I had just started learning what the hell I was doing.

HT ON:

3839A568

Linpack temps :up:
http://i125.photobucket.com/albums/p...la/Linpack.jpg

Quote:

---

Originally Posted by JWMc

We need apples to apples comparisons for load testing. I am using less voltage for LinX vs Prime blend, every single time.

---

uhh linpack requires more voltage then prime. U sure its not the other way around?

Quote:

---

Originally Posted by The-Fox

Yahh jcool I was referring to you.
Are you sure linX is using all cores/100% CPU on i7 ?

---

Positive, check the LinX thread for lots of screens from lots of people with i7 and HT on ;)

NaeKuh, FFS, read the thread! :p:
IBT does NOT stress the CPU properly with HT enabled.

@JWMc: I have tested with 3 different i7 rigs so far.. Linpack 64 definitely needs more Vcore than Prime blend, even though prime blend needed one notch more VTT in one case for me, equal in the other cases. Overall, LinX is the hardest tool to test i7 right now.

I was able to get into windows at 21x205 monday night. I'll get the batch number posted up when i get home. I leave turbo on, i think i might have hyperthreading off atm though.

Quote:

---

Originally Posted by NaeKuh

uhh linpack requires more voltage then prime. U sure its not the other way around?

---

Yep, every time on my chip. I wonder if it's special. The temps are higher with LinX every time too, by a good bit. Usually when I'm using that low voltage that works for LinX only I can Prime Blend for a while, sometimes 1.5-2 hours! But it won't make it 4+ hours until I raise voltage 2-3 steps depending on where I am.

Edit: I don't have enough evidence and I doubt I'll see this behavior again, if I ever even did. I think I was simply lucky for passing LinX in the first place.

FPO/Batch #: 3836A405
OC: Core i7 940, 4.2GHz (21x200MHz) with HT, 1.39375V BIOS (see screenshot as well for volts and temps), 1.35000V QPI/DRAM, 1.65681V DRAM, 1600MHz DRAM at 7-8-7-20-1T, cooled by air using TRUE 1366RT, Load Line Calibration on Auto, C-states active

Quote:

---

Originally Posted by jcool

@JWMc: I have tested with 3 different i7 rigs so far.. Linpack 64 definitely needs more Vcore than Prime blend, even though prime blend needed one notch more VTT in one case for me, equal in the other cases. Overall, LinX is the hardest tool to test i7 right now.

---

Yes I have noticed Prime blend needing more VTT, a good bit more for 4ghz with HT vs 3.8ghz with HT. But I have also noticed it needing slightly more voltage to make it through long Prime blend runs vs just burning through a quick LinX x 20.

Whenever I try a drastically different OC I start with LinX, watch it blow up really fast, keep upping voltage until it passes x 20. Then I go for blend and watch it work fine for a while.. and think it's stable. Then re-test and sigh... it isn't stable.

One thing that has been a warning sign that has held true for me every time is if I see three different voltages for Min/Max/Current in HW monitor after leaving Prime blend running for a while. It means my voltage is borderline and it's occasionally drooping too much. I'm jealous of these boards that put out more voltage than you ask for in the BIOS. I have to enable LLC just to keep it from sagging further (Gigabyte UD5).

Quote:

---

Originally Posted by JWMc

Yes I have noticed Prime blend needing more VTT, a good bit more for 4ghz with HT vs 3.8ghz with HT. But I have also noticed it needing slightly more voltage to make it through long Prime blend runs vs just burning through a quick LinX x 20.

Whenever I try a drastically different OC I start with LinX, watch it blow up really fast, keep upping voltage until it passes x 20. Then I go for blend and watch it work fine for a while.. and think it's stable. Then re-test and sigh... it isn't stable.

One thing that has been a warning sign that has held true for me every time is if I see three different voltages for Min/Max/Current in HW monitor after leaving Prime blend running for a while. It means my voltage is borderline and it's occasionally drooping too much. I'm jealous of these boards that put out more voltage than you ask for in the BIOS. I have to enable LLC just to keep it from sagging further (Gigabyte UD5).

---

You mean like the R2E :p:

Those oscillations over time usually mean that you are pushing your board beyound its limits and the built up stress and heat are causing things to slowly fail.

Quote:

---

Originally Posted by JWMc

Yes I have noticed Prime blend needing more VTT, a good bit more for 4ghz with HT vs 3.8ghz with HT. But I have also noticed it needing slightly more voltage to make it through long Prime blend runs vs just burning through a quick LinX x 20.

Whenever I try a drastically different OC I start with LinX, watch it blow up really fast, keep upping voltage until it passes x 20. Then I go for blend and watch it work fine for a while.. and think it's stable. Then re-test and sigh... it isn't stable.

One thing that has been a warning sign that has held true for me every time is if I see three different voltages for Min/Max/Current in HW monitor after leaving Prime blend running for a while. It means my voltage is borderline and it's occasionally drooping too much. I'm jealous of these boards that put out more voltage than you ask for in the BIOS. I have to enable LLC just to keep it from sagging further (Gigabyte UD5).

---

Well if you use low memory values in LinX a 10min pass doesn't mean it will pass 10h prime ofc. But if you run on at least 3GB of memory (ideally 5 with 6GB) in 64bit mode for about an hour, I can almost guarantuee you that prime won't fail within >10h (on i7, that is).

Quote:

---

Originally Posted by jcool

Well if you use low memory values in LinX a 10min pass doesn't mean it will pass 10h prime ofc. But if you run on at least 3GB of memory (ideally 5 with 6GB) in 64bit mode for about an hour, I can almost guarantuee you that prime won't fail within >10h (on i7, that is).

---

Or just isolate your memory OC first, find a stable one, then go and OC your CPU.

Doing both at the same time is not very good as you find yourself not being able to determine where the problem is coming from...

Not sure how much this will help, but over the last 2 days I reread the i7OC thread and pulled all this out of it. I haven't added the new info from this thread or the Study thread that popped up yesterday either, but I could if this kind of list is useful to anyone.

EDIT:Upadted 5:12PM CST.
Notes:
Added a [STABLE] flag. I don't want to get in a pissing match about what is the definition of stable, but if the chip owner says their system is stable I will flag it as so. Thanks
Added all the posts from this thread and the i7 study thread. If I missed someone let me know via pm or post here.

Core I7 920 A Batch
-3836a381
Chri$ch-3800.1Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=144
Chri$ch-4009.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=151
Chri$ch-4200.2Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=201
deepsilver-3599.9Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...&postcount=259

-3841A383
JWMc-3800.0Mhz @ 1.218V HT On http://www.xtremesystems.org/forums/...postcount=1902
JWMc-4000.0Mhz @ 1.300V HT Off http://www.xtremesystems.org/forums/...3&postcount=15
JWMc-4000.0Mhz @ 1.406V HT On http://www.xtremesystems.org/forums/...3&postcount=15
16floz470ml-3827.6Mhz @ 1.195V HT On http://www.xtremesystems.org/forums/...postcount=1928
Tot31-3500.0Mhz @ 1.056V HT Off http://www.xtremesystems.org/forums/...postcount=1933
[STABLE]Tot31-3799.8Mhz @ 1.144V HT Off http://www.xtremesystems.org/forums/...08&postcount=5

-3839A403
Chicken Patty-4303.5Mhz @ 1.435V HT Off http://www.xtremesystems.org/forums/...postcount=2000
Chicken Patty-4192.2Mhz @ 1.411V HT On http://www.xtremesystems.org/forums/...04&postcount=2

-3836A405
Dejanh-4187.9Mhz @ 1.384V HT On http://www.xtremesystems.org/forums/...1&postcount=30

- 3841A431
Icecold316-No Results Posted.

- 3839A459
FragMagnet-No Results Posted.

- 3838A505
Scaramonga-4000.2Mhz @ 1.424V HT Off http://www.xtremesystems.org/forums/...0&postcount=10

- 3837A507
Nordien-4217Mhz @ 1.400V HT Off http://www.xtremesystems.org/forums/...postcount=1464
Mikesrex-No Results Posted.

- 3836A514
Sonofander-No Results Posted.

- 3836A531
Mascaras-3800.1Mhz @ 1.200V HT On http://www.xtremesystems.org/forums/...&postcount=651
Mascaras-4000.2Mhz @ 1.344V HT On http://www.xtremesystems.org/forums/...&postcount=464
Mascaras-4312.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=464

-3838A554
Loc.o-4000.0Mhz @ 1.325V HT On http://www.xtremesystems.org/forums/...&postcount=597

-3839A568
NaeKuh-4005.1Mhz @ 1.392V HT On http://www.xtremesystems.org/forums/...4&postcount=26

-3839A579
Tobit-No Results Posted.

-3838A646
Uberbob10200-3400.0Mhz @ 1.153V HT ? http://www.xtremesystems.org/forums/...&postcount=610

- 3838A685
Jcool-“My 3838A685 920 sucks”

- 3835A699
CodeRush-4053.3Mhz @ 1.344V HT Off http://www.xtremesystems.org/forums/...2&postcount=11

- 3837A714
Revenant-No Results Posted.

- 3837A715
Joger-3618.1Mhz @ 1.094V HT On http://www.xtremesystems.org/forums/...5&postcount=18

- 3837A727
Freshy- No Results Posted.

-3837A728
ShoNuff-3800.1Mhz @ 1.2248V HT On http://www.xtremesystems.org/forums/...&postcount=470
Chuckbam-No Results Posted.
Bobbylite-4200.0Mhz @ 1.344V HT Off http://www.xtremesystems.org/forums/...&postcount=616
Bobbylite-4010.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...34&postcount=6

- 3835A766
Beast200-4200Mhz @ 1.425V HT Off http://www.xtremesystems.org/forums/...7&postcount=12
The-Fox-4199.8Mhz @ 1.416V HT On http://www.xtremesystems.org/forums/...7&postcount=50

- 3837A768
Ghigo-3800.0Mhz @ 1.34V HT ? http://www.xtremesystems.org/forums/...30&postcount=9

- 3837a769
Nosboost300-No Results Posted.
[STABLE]Hot’n’Chilly-3800.0Mhz @ 1.320V HT On http://www.xtremesystems.org/forums/...71&postcount=1

- 3836a772
Gligy-3800.0Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=227

-3836A866
Jupiter-3800.0Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=467

-3836A867
Metroid-3717.8Mhz @ 1.160V HT Off http://www.xtremesystems.org/forums/...&postcount=552
Metroid-4009.2Mhz @ 1.248V HT Off http://www.xtremesystems.org/forums/...&postcount=560
Metroid-4009.0Mhz @ 1.272 HT On http://www.xtremesystems.org/forums/...&postcount=566

- 3837A909
Tjelaw-4200Mhz @ 1.362V HT On http://www.xtremesystems.org/forums/...postcount=1494
SmokeyTheBandit-4049.6Mhz @ 1.312V HT On http://www.xtremesystems.org/forums/...84&postcount=2
Bullu$-4226.4Mhz @ 1.448V HT On http://www.xtremesystems.org/forums/...7&postcount=16


Core I7 920 B Batch
-3837B072
Webwilli-No Results Posted.
Chri$ch- No Results Posted.

- 3837B076
Cky2k6-4005.4Mhz @ 1.344V HT On http://www.xtremesystems.org/forums/...17&postcount=1

-3838B079
Namegt-3780.0Mhz @ 1.168V HT On http://www.xtremesystems.org/forums/...&postcount=603
Namegt-4000.2Mhz @ 1.216V HT Off http://www.xtremesystems.org/forums/...&postcount=620
Chri$ch-4011.2Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...postcount=1465
Dengyong-4020.1Mhz @ 1.296V HT On http://www.xtremesystems.org/forums/...14&postcount=9 //Comment-Deng posted 1.296V but OCCT displays 1.10V, so not sure on that.

-3837B080
Dj883u2-3705.0Mhz @ 1.088V HT On http://www.xtremesystems.org/forums/...&postcount=684
Dj883u2-4010.0Mhz @ 1.152V HT On http://www.xtremesystems.org/forums/...&postcount=619
Dj883u2-4104.3Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=650
Dj883u2-4515.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=706

- 3837B194
Nilos-4200.1Mhz @ 1.392V HT On http://www.xtremesystems.org/forums/...51&postcount=3
[STABLE]ReverendMaynard-4199.9Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...22&postcount=5

-3837B215
DerekT-3183.5Mhz @ 1.136V HT On http://www.xtremesystems.org/forums/...postcount=1859



Core I7 940 A Batch
-3836A405
[STABLE]Rge-4200.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...9&postcount=24

-3835A730
Jcool-4400.0Mhz @ 1.504V HT On http://www.xtremesystems.org/forums/...postcount=1912



Core I7 940 B Batch



Core I7 965 A Batch
-3836A383
FuriousSalesman-No Results Posted.

-3835A538
Giorgos th.-5044.3Mhz @ 1.568V HT Off http://www.xtremesystems.org/forums/...&postcount=500
Giorgos th.-4805.9Mhz @ 1.536V HT Off http://www.xtremesystems.org/forums/...&postcount=492
Giorgos th.-4653.3Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=369
Giorgos th.-4423.9Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=305
Giorgos th.-4271.5Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=294
Giorgos th.-4102.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=294



Core I7 965 B Batch
-3837B209
Kazukun-4200.1Mhz @ 1.544V HT On http://www.xtremesystems.org/forums/...postcount=1134

from page one

http://www.xtremesystems.org/forums/...22&postcount=5

add that to the "B" batch

Well done! You could add my crappy 3838A 920 as well if you like.
One thing might be important here: Add a "stable" or "screen" or "benchable" tag. Obviously I could post CPU-Z at 4,7 or 4,8Ghz but that wont help anyone comparing numbers...

Quote:

---

Originally Posted by jcool

Well done! You could add my crappy 3838A 920 as well if you like.
One thing might be important here: Add a "stable" or "screen" or "benchable" tag. Obviously I could post CPU-Z at 4,7 or 4,8Ghz but that wont help anyone comparing numbers...

---

I guess I could go back through all the links and try to dig that info out. Just finding some of that info to begin with was like a needle in a haystack. The original i7OC thread is just loaded with so much unorganized info.

The other thing that is just as necessary to fix as Vcore is CPU temp. By that, I mean that I see a lot of validations where someone has passed prime at a high clock and low Vcore, but has a low CPU temp. In that case, they may not have an especially good chip, they may just have a really good cooling system. For example, a rig that has passed prime at , say, 4.2Ghz at 1.38 Vcore, but at 65C CPU temp is much less impressive as a rig that has done the same VCore/CPU Clk at 82C.

In general, I have seen few if any impressive validations on chips later than week 39. Week 36 seems to be the best. I recently got a 920 that booted into windows and ran a 4552 Mhz pass at 1.456 Vcore on super pi on air, batch 3836A977. I'll post validation in a day or two, that rig is down right now.

Quote:

---

Originally Posted by dejanh

You mean like the R2E :p:

Those oscillations over time usually mean that you are pushing your board beyound its limits and the built up stress and heat are causing things to slowly fail.

---

The thing is my temps are great though because I backed off to 3.8ghz. I need a lot more voltage for 4ghz than 3.8ghz and the heat under LinX load at 4ghz goes to 83c on this TRUE 120 with two 2100 rpm fans.

I'm finally fully stable at 19x200 with HT: 11 hours of Prime blend at 1.185v load and 62c max temp. LinX max temps are of course higher at about 65-66c. Er, actually the voltage is still dropping to 1.168v under LinX so it does drop more there. For some reason it's still more stable with lower volts in LinX than Prime blend though.

New Edit: HEY! Guess what, now my machine wants to blue screen on LinX all of a sudden. I think it only started failing because I raised the RAM usage up a bit. I was using a problem size of 10000, not big enough for even just 4 gigs memory. I just raised my bios vCore setting to 1.22500v and now I'm finally getting a solid 1.20v idle and 1.184v load on LinX (which passed).

Quote:

---

Originally Posted by Avan

Not sure how much this will help, but over the last 2 days I reread the i7OC thread and pulled all this out of it. I haven't added the new info from this thread or the Study thread that popped up yesterday either, but I could if this kind of list is useful to anyone.

Ps It's not the cleanest, but here it is.


Core I7 920 A Batch
-3836a381
Chri$ch-3800.1Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=144
Chri$ch-4009.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=151
Chri$ch-4200.2Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=201
deepsilver-3599.9Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...&postcount=259

-3841A383
JWMc-3800.0Mhz @ 1.218V HT On http://www.xtremesystems.org/forums/...postcount=1902
16floz470ml-3827.6Mhz @ 1.195V HT On http://www.xtremesystems.org/forums/...postcount=1928
Tot31-3500.0Mhz @ 1.056V HT Off http://www.xtremesystems.org/forums/...postcount=1933

-3839A403
Chicken Patty-4303.5Mhz @ 1.435V HT Off http://www.xtremesystems.org/forums/...postcount=2000

- 3841A431
Icecold316-No Results Posted.

- 3839A459
FragMagnet-No Results Posted.

- 3837A507
Nordien-4217Mhz @ 1.400V HT Off http://www.xtremesystems.org/forums/...postcount=1464

- 3836A514
Sonofander-No Results Posted.

- 3836A531
Mascaras-3800.1Mhz @ 1.200V HT On http://www.xtremesystems.org/forums/...&postcount=651
Mascaras-4000.2Mhz @ 1.344V HT On http://www.xtremesystems.org/forums/...&postcount=464
Mascaras-4312.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=464

-3838A554
Loc.o-4000.0Mhz @ 1.325V HT On http://www.xtremesystems.org/forums/...&postcount=597

-3839A579
Tobit-No Results Posted.

-3838A646
Uberbob10200-3400.0Mhz @ 1.153V HT ? http://www.xtremesystems.org/forums/...&postcount=610

- 3837A714
Revenant-No Results Posted.

- 3837A727
Freshy- No Results Posted.

-3837A728
ShoNuff-3800.1Mhz @ 1.2248V HT On http://www.xtremesystems.org/forums/...&postcount=470
Chuckbam-No Results Posted.
Bobbylite-4200.0Mhz @ 1.344V HT Off http://www.xtremesystems.org/forums/...&postcount=616

- 3835A766
Beast200-4200Mhz @ 1.425V HT Off http://www.xtremesystems.org/forums/...7&postcount=12
The-Fox-No Results Posted.

- 3837A768
Ghigo-3800.0Mhz @ 1.34V HT ? http://www.xtremesystems.org/forums/...30&postcount=9

- 3837a769
Nosboost300-No Results Posted.

- 3836a772
Gligy-3800.0Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=227

-3836A866
Jupiter-3800.0Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=467

-3836A867
Metroid-3717.8Mhz @ 1.160V HT Off http://www.xtremesystems.org/forums/...&postcount=552
Metroid-4009.2Mhz @ 1.248V HT Off http://www.xtremesystems.org/forums/...&postcount=560
Metroid-4009.0Mhz @ 1.272 HT On http://www.xtremesystems.org/forums/...&postcount=566

- 3837A909
Tjelaw-4200Mhz @ 1.362V HT On http://www.xtremesystems.org/forums/...postcount=1494



Core I7 920 B Batch
-3837B072
Webwilli-No Results Posted.
Chri$ch- No Results Posted.

-3838B079
Namegt-3780.0Mhz @ 1.168V HT On http://www.xtremesystems.org/forums/...&postcount=603
Namegt-4000.2Mhz @ 1.216V HT Off http://www.xtremesystems.org/forums/...&postcount=620
Chri$ch-4011.2Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...postcount=1465


-3837B080
Dj883u2-3705.0Mhz @ 1.088V HT On http://www.xtremesystems.org/forums/...&postcount=684
Dj883u2-4010.0Mhz @ 1.152V HT On http://www.xtremesystems.org/forums/...&postcount=619
Dj883u2-4104.3Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=650
Dj883u2-4515.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=706

-3837B215
DerekT-3183.5Mhz @ 1.136V HT On http://www.xtremesystems.org/forums/...postcount=1859



Core I7 940 A Batch
-3835A730
Jcool-4400.0Mhz @ 1.504V HT On http://www.xtremesystems.org/forums/...postcount=1912



Core I7 940 B Batch



Core I7 965 A Batch
-3836A383
FuriousSalesman-No Results Posted.

-3835A538
Giorgos th.-5044.3Mhz @ 1.568V HT Off http://www.xtremesystems.org/forums/...&postcount=500
Giorgos th.-4805.9Mhz @ 1.536V HT Off http://www.xtremesystems.org/forums/...&postcount=492
Giorgos th.-4653.3Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=369
Giorgos th.-4423.9Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=305
Giorgos th.-4271.5Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=294
Giorgos th.-4102.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=294



Core I7 965 B Batch

-3837B209
Kazukun-4200.1Mhz @ 1.544V HT On http://www.xtremesystems.org/forums/...postcount=1134

---

thanks for putting them altogether Avan. :up:

Can someone explaine how the batch nr works? Where for exsample, is the produktion week?

Some say early produktion week are best..!?

I can choose between 3838A826 and 3838A828 batch of i7 920...

which is best? equal?

Thx!

ByE!

Quote:

---

Originally Posted by PRJ

Can someone explaine how the batch nr works? Where for exsample, is the produktion week?

Some say early produktion week are best..!?

---

I second this request!

The production date explnation is pretty simple:
Lets take a common batch number:
3836A867

First two digits: not sure.
Second two digits: Production week.
First Letter: Batch type, A/B - we are not sure what is exactly the differeance but the rumor has it that B types requires less voltage at the same clock.
Last 3 digits: probably unit number in the batch as we have seen different CPUs with the same production week but last 3 digits were different, e.g.: 3837A905 and 3837A902.

If anyone has better info on this, feel free to correct me.

Quote:

---

Originally Posted by Avan

I guess I could go back through all the links and try to dig that info out. Just finding some of that info to begin with was like a needle in a haystack. The original i7OC thread is just loaded with so much unorganized info.

---

Avan, I duplicated my result in this thread on this page, earlier on so you can add it to your list. Stable Core i7 940 at 4.2GHz with 1.39375V in BIOS. Load was showing roughly 1.38V. I did not enable LLC.

Quote:

---

Originally Posted by The-Fox

The production date explnation is pretty simple:
Lets take a common batch number:
3836A867

First two digits: not sure.
Second two digits: Production week.
First Letter: Batch type, A/B - we are not sure what is exactly the differeance but the rumor has it that B types requires less voltage at the same clock.
Last 3 digits: probably unit number in the batch as we have seen different CPUs with the same production week but last 3 digits were different, e.g.: 3837A905 and 3837A902.

If anyone has better info on this, feel free to correct me.

---

iirc, the first three digits are the lot number. You'll start to see a progression of this number over the cycle of the cpu.

First digit OR letter - where the cpu is manufactured (3 - Costa Rica), second digit - the year of manufacture (8 is, obviously, 2008)

BTW, google is your friend ;)

Quote:

---

Originally Posted by anzial

First digit OR letter - where the cpu is manufactured (3 - Costa Rica), second digit - the year of manufacture (8 is, obviously, 2008)

BTW, google is your friend ;)

---

Good one with google, i tryed but apperently not enough :up:
I just don't think it goes for i7 CPU's, but still.

I just ordered a i7 920 3837B067 - hope it clocks as well as the one Dj883u2 has ( 3837B080 ) :D

Here is my i920, 24/7 Result:

Batch#: 3837A766
CPU: 200x21(Turbo) = 4200Mhz @ 1.425v, HT=ON.
CPU Diffrential Amplitude: 700mv, CPU/IOH Clock Skew: delay 100ps.
TM Function=Enabled, QPI voltage=Auto, Load Line Calibration=AUTO.

Memory: DDR 1600Mhz 7-7-7-18 1T @ 1.64v


http://img293.imageshack.us/img293/4...001425vna3.jpg
http://img293.imageshack.us/img293/l...jpg/1/w854.png

excellent temps for those clocks Fox. How did you come to using a lower than standard Amplitude?

Updated my batch list.

http://www.xtremesystems.org/forums/...7&postcount=35

Great work Avan. I will edit my first post, as this is now enough info to start a real database, crediting you of course.

i7 920 3838A824
TRUE w/dual Scythe SlipStream 110 CFM Push/Pull
DFI UT X58-T3eH8
Corsair Dominator TR3X3G1866C9DF
2 X BFG 280GTXOC SLI
Segate 320GB HD
Antec TruePower Quattro 1000W
Techstation


12hrs prime, up next water, then another air test on 3837B317


http://img.techpowerup.org/090115/12...-8-8-24 1T.jpg

Quote:

---

Originally Posted by ReverendMaynard

excellent temps for those clocks Fox. How did you come to using a lower than standard Amplitude?

---

Yahh, the temps are good although the fans are very quiet.
The Feser480/GTZ are an excellent way to tame those i7 temps.

About the amplitude, Some guy here with the same board gave me his settings and I tried them and they worked nice so I gave them a go since.
It took me a while to digest and understand all the different parameters in this setp and I am still not 100% done so maybe there is room for improvement.
I might as well try without it as it looks like my temps are a bit higher than other people with same week (37), but its a nice chip :D

Quote:

---

Originally Posted by Avan

Updated my batch list.

http://www.xtremesystems.org/forums/...7&postcount=35

---

A small correction, my Batch# is 3837A766 and not 3835A766.
Cheers :up:

What is the max voltage most people are using for 24/7 use? Most I've seen was 1.39, is it the temps everyone is afraid of?

Quote:

---

Originally Posted by Avan

Updated my batch list.

http://www.xtremesystems.org/forums/...7&postcount=35

---

Thank you for updating your list.
I'll update my post with an occt vcore graph.

[QUOTE=The Nemesis;3581010]i7 920 3838A824
TRUE w/dual Scythe SlipStream 110 CFM Push/Pull
DFI UT X58-T3eH8
Corsair Dominator TR3X3G1866C9DF
2 X BFG 280GTXOC SLI
Segate 320GB HD
Antec TruePower Quattro 1000W
Techstation


12hrs prime, up next water, then another air test on 3837B317


QUOTE]

Hi Nemesis,
Could you keep me updated on the 3837B317 chip? I just picked on of those up. Many thanks!

Thanks,
Eddie

Currently testing 3838A671 i7 920 (ver. 002 on label) presently at 3.8GHz 1.23v load (1.2625v BIOS), GA-EX58-UD4P F6a on TRUE120 push-pull, EIST/C-states feature is on. Should be good enough setting for 24/7 ops.

http://i173.photobucket.com/albums/w...X58GA-UD4P.png

i7 920 3837B317
TRUE w/dual Scythe SlipStream 110 CFM Push/Pull
DFI UT X58-T3eH8
Corsair Dominator TR3X3G1866C9DF
2 X BFG 280GTXOC SLI
Segate 320GB HD
Antec TruePower Quattro 1000W
Techstation

http://img.techpowerup.org/090116/7 ...vtt 19x207.jpg

Stopped this test and now moved up to 4009MHz 1.376vcore 1.34vtt

Nice OCs there people, keep em coming!

Also if some of you would be willing to retest your OCs with higher mem/uncore speeds, that would be greatly appreciated, as I am currently trying to increase my ram mult at high clockspeeds, and I can't even get a boot into windows, even though it passed memtest several times. Seems my 940 has a really crappy IMC, my very weak 3838A 920 could easily run 200 BCLK/2Ghz Ram/4Ghz uncore while this 940 can't even boot Windows with 10x mult at 190 BCLK and is unstable as hell at 8x. Any setting setting besides VTT that I might try increasing?

Processor: Core i7 920@4557Mhz - On Waterblock - Liquid.
Batch: 3837B080
Motherboard: Gigabyte EX58-UD5

http://img407.imageshack.us/img407/5...0392ov0.th.jpg

CPU-Z Validator 3.0

:up:

Quote:

---

Originally Posted by jcool

Nice OCs there people, keep em coming!

Also if some of you would be willing to retest your OCs with higher mem/uncore speeds, that would be greatly appreciated, as I am currently trying to increase my ram mult at high clockspeeds, and I can't even get a boot into windows, even though it passed memtest several times. Seems my 940 has a really crappy IMC, my very weak 3838A 920 could easily run 200 BCLK/2Ghz Ram/4Ghz uncore while this 940 can't even boot Windows with 10x mult at 190 BCLK and is unstable as hell at 8x. Any setting setting besides VTT that I might try increasing?

---

I know exactly what you mean.
Basically if you want to run high Uncore clocks you need to raise DRAM voltage.
It was working for me and a lot of other people.
Just make sure you run your QPI/VTT voltage not lower than 0.5v than DRAM voltage.

For 4Ghz Uncore you will probably need about 1.8v for DRAM.

Quote:

---

Originally Posted by The-Fox

I know exactly what you mean.
Basically if you want to run high Uncore clocks you need to raise DRAM voltage.
It was working for me and a lot of other people.
Just make sure you run your QPI/VTT voltage not lower than 0.5v than DRAM voltage.

For 4Ghz Uncore you will probably need about 1.8v for DRAM.

---

Alternatively, I find that CAS9 ram allot more forgiving on the IMC. Just a thought, but maybe relaxing the timings is a better alternative than just ramping up voltages?

Quote:

---

Originally Posted by jcool

Nice OCs there people, keep em coming!

Also if some of you would be willing to retest your OCs with higher mem/uncore speeds, that would be greatly appreciated, as I am currently trying to increase my ram mult at high clockspeeds, and I can't even get a boot into windows, even though it passed memtest several times. Seems my 940 has a really crappy IMC, my very weak 3838A 920 could easily run 200 BCLK/2Ghz Ram/4Ghz uncore while this 940 can't even boot Windows with 10x mult at 190 BCLK and is unstable as hell at 8x. Any setting setting besides VTT that I might try increasing?

---

also try testing with 1x2GB or 2x2GB modules to see if 3x2GB is holding you back. If it is then you have more mem tweaking to do with 3x2GB :)

Quote:

---

Originally Posted by jcool

Nice OCs there people, keep em coming!

Also if some of you would be willing to retest your OCs with higher mem/uncore speeds, that would be greatly appreciated, as I am currently trying to increase my ram mult at high clockspeeds, and I can't even get a boot into windows, even though it passed memtest several times. Seems my 940 has a really crappy IMC, my very weak 3838A 920 could easily run 200 BCLK/2Ghz Ram/4Ghz uncore while this 940 can't even boot Windows with 10x mult at 190 BCLK and is unstable as hell at 8x. Any setting setting besides VTT that I might try increasing?

---

If you increase uncore by itself to 20X or 21x is it still unstable, or does it become unstable when you then increase mem to 10X, ie is it mem or uncore causing problem?

My uncore scales to some degree with qpi pll, qpi/vtt and DRAM. To get my i940 to run arena chess benchmark at 4.57 (21x199), with uncore 22x (4378mhz), and mem 10x 1990 with 8,8,8 22 timings, needed qpi/vtt 1.61, DRAM 2.0, and qpi PLL 1.22. 1-2 notches below on any of 3 = bsod/freeze every time. others vcore 1.66, cpu pll 2.0, and ioh 1.2.

Thanks for the input guys.. I run around 1,8-1,9V Vdimm constantly so uncore shouldn't be a problem (I'll try with high uncore at 6x mult next to verify).
The thing is that even the 8x mult seems unstable and even went so far as to :banana::banana::banana::banana: up the bios (rebooted during linX and went into a reboot loop.. had to remove battery for 2h to get it back up lol).

What helped a great deal was reducing the Command rate to 2T, I guess with 6GB 1T can be rather harsh on the IMC.

Quote:

---

Originally Posted by jcool

Thanks for the input guys.. I run around 1,8-1,9V Vdimm constantly so uncore shouldn't be a problem (I'll try with high uncore at 6x mult next to verify).
The thing is that even the 8x mult seems unstable and even went so far as to :banana::banana::banana::banana: up the bios (rebooted during linX and went into a reboot loop.. had to remove battery for 2h to get it back up lol).

What helped a great deal was reducing the Command rate to 2T, I guess with 6GB 1T can be rather harsh on the IMC.

---

I was wondering about 1t myself, or just maybe your memory. I have 2 sets of 3x1gb, OCZ and corsair dom (rma and my impatience). After updating to windows 7 from xp, thought since I had 6 gb, why not. Put 6x1gb in, could not get anything stable, but did notice the default setting was command 2t (though I never tried it, from start I had manually 1t). But I am using 2 types of ram and all 6 slots. But I can tell you there is a lot of difference between my OCZ ram stability at different settings than corsair dom....so may just be something peculiar about your ram as well.

But if anyone else has issues or not running at 1t vs 2t with 6gb I would love to know. I did not know if it was 6gb or fact I was using all 6 slots, ie stupid way of 6 gb. I am considering changing to 3x2gb...but havent yet after getting hosed by 6x1gb.

latter posts seem to be drifting off-topic. Can you guys stay on topic, please? there are plenty of other threads to discuss memory and stability issues.

Processor: Core i7 965 Extreme
FPO/Batch #: 3836A384
Cooling: Stock (Will be upgraded to water soon)
System Specs: See Sig
RAM: PM me for details
Stability: Benched Chess, and then Gamed For 3 hours lastnight. Prime? Not yet, waiting to get water loop setup.

Looking good T. Real good.

T - you gotta get that under water ASAP and let us know how it goes.

Yeah, I don't wanna get off topic, but look at the temps. There's no way I can Prime that. I'm certain it would throttle with that kind of load. It *barely* got through Chess. It funny in games because it doesn't even load that CPU at all. I temp logged it and the thing didn't even get warm during a 3 hour marathon gaming session.

I'm gonna call Monday and get my parts. I'll get it. I promise.

avan, my numbers - both with 1.55 vcore.

I just "hand" picked a 3836B043.
Haven't seen anyone with this one yet, but I have hopes since it's a B.
Sorry, results won't come for a while though, gotta wait for the Classified.
I'll report back to this thread once I build the system!

I've got a good one at just over 4GHz and below 1.3V. Long Prime95/short Intel Burn Test stable. I've only touched the CPU voltage thus far and haven't explored BIOS options, so I have lots of fiddling room. My new 620HX is making odd sounds, so I want to wait for a replacement and the retention kit for my Vendetta 2 cooler before stressing again overnight without my eye on it. Batch# 3837B073.

By the way, any consensus on the best BIOS so far? Also, what are the best voltages to touch besides CPU to get better clocks?

Quote:

---

Originally Posted by YukonTrooper

I've got a good one at just over 4GHz and below 1.3V. Long Prime95/short Intel Burn Test stable. I've only touched the CPU voltage thus far and haven't explored BIOS options, so I have lots of fiddling room. My new 620HX is making odd sounds, so I want to wait for a replacement and the retention kit for my Vendetta 2 cooler before stressing again overnight without my eye on it. Batch# 3837B073.

By the way, any consensus on the best BIOS so far? Also, what are the best voltages to touch besides CPU to get better clocks?

---

dude, I'm telling you...NCIX has the bomb batches.

Quote:

---

Originally Posted by JAG87

I just "hand" picked a 3836B043.
Haven't seen anyone with this one yet, but I have hopes since it's a B.
Sorry, results won't come for a while though, gotta wait for the Classified.
I'll report back to this thread once I build the system!

---

I've got one. After continued testing... its not that great. :down:

Quote:

---

Originally Posted by derektm

I've got one. After continued testing... its not that great. :down:

---

Can you go into some more detail?

I have 7 days to return this chip for a full refund while its still sealed and try for another batch.

Quote:

---

Originally Posted by ReverendMaynard

dude, I'm telling you...NCIX has the bomb batches.

---

When did you order? Trying to figure out my chances of getting a 3837B if I order now...

Quote:

---

Originally Posted by JAG87

Can you go into some more detail?

I have 7 days to return this chip for a full refund while its still sealed and try for another batch.





When did you order? Trying to figure out my chances of getting a 3837B if I order now...

---

NCIX.com. Ordered it the minute it was available, but I think another member here just ordered one and it was a 3837B0xx iirc.

Ordered mine just over a week ago from NCIX. Hurry!

Got mine from NCIX (Vancouver) and it's a 3837B194 as well. Currently running it at 3800 mhz but with only 1.23 vcore. It will do 4.2 but that required 1.41 vcore along with the heat to go with it.

Quote:

---

Originally Posted by Avan

Not sure how much this will help, but over the last 2 days I reread the i7OC thread and pulled all this out of it. I haven't added the new info from this thread or the Study thread that popped up yesterday either, but I could if this kind of list is useful to anyone.

EDIT:Upadted 5:12PM CST.
Notes:
Added a [STABLE] flag. I don't want to get in a pissing match about what is the definition of stable, but if the chip owner says their system is stable I will flag it as so. Thanks
Added all the posts from this thread and the i7 study thread. If I missed someone let me know via pm or post here.

Core I7 920 A Batch
-3836a381
Chri$ch-3800.1Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=144
Chri$ch-4009.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=151
Chri$ch-4200.2Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=201
deepsilver-3599.9Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...&postcount=259

-3841A383
JWMc-3800.0Mhz @ 1.218V HT On http://www.xtremesystems.org/forums/...postcount=1902
JWMc-4000.0Mhz @ 1.300V HT Off http://www.xtremesystems.org/forums/...3&postcount=15
JWMc-4000.0Mhz @ 1.406V HT On http://www.xtremesystems.org/forums/...3&postcount=15
16floz470ml-3827.6Mhz @ 1.195V HT On http://www.xtremesystems.org/forums/...postcount=1928
Tot31-3500.0Mhz @ 1.056V HT Off http://www.xtremesystems.org/forums/...postcount=1933
[STABLE]Tot31-3799.8Mhz @ 1.144V HT Off http://www.xtremesystems.org/forums/...08&postcount=5

-3839A403
Chicken Patty-4303.5Mhz @ 1.435V HT Off http://www.xtremesystems.org/forums/...postcount=2000
Chicken Patty-4192.2Mhz @ 1.411V HT On http://www.xtremesystems.org/forums/...04&postcount=2

-3836A405
Dejanh-4187.9Mhz @ 1.384V HT On http://www.xtremesystems.org/forums/...1&postcount=30

- 3841A431
Icecold316-No Results Posted.

- 3839A459
FragMagnet-No Results Posted.

- 3838A505
Scaramonga-4000.2Mhz @ 1.424V HT Off http://www.xtremesystems.org/forums/...0&postcount=10

- 3837A507
Nordien-4217Mhz @ 1.400V HT Off http://www.xtremesystems.org/forums/...postcount=1464
Mikesrex-No Results Posted.

- 3836A514
Sonofander-No Results Posted.

- 3836A531
Mascaras-3800.1Mhz @ 1.200V HT On http://www.xtremesystems.org/forums/...&postcount=651
Mascaras-4000.2Mhz @ 1.344V HT On http://www.xtremesystems.org/forums/...&postcount=464
Mascaras-4312.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=464

-3838A554
Loc.o-4000.0Mhz @ 1.325V HT On http://www.xtremesystems.org/forums/...&postcount=597

-3839A568
NaeKuh-4005.1Mhz @ 1.392V HT On http://www.xtremesystems.org/forums/...4&postcount=26

-3839A579
Tobit-No Results Posted.

-3838A646
Uberbob10200-3400.0Mhz @ 1.153V HT ? http://www.xtremesystems.org/forums/...&postcount=610

- 3838A685
Jcool-“My 3838A685 920 sucks”

- 3835A699
CodeRush-4053.3Mhz @ 1.344V HT Off http://www.xtremesystems.org/forums/...2&postcount=11

- 3837A714
Revenant-No Results Posted.

- 3837A715
Joger-3618.1Mhz @ 1.094V HT On http://www.xtremesystems.org/forums/...5&postcount=18

- 3837A727
Freshy- No Results Posted.

-3837A728
ShoNuff-3800.1Mhz @ 1.2248V HT On http://www.xtremesystems.org/forums/...&postcount=470
Chuckbam-No Results Posted.
Bobbylite-4200.0Mhz @ 1.344V HT Off http://www.xtremesystems.org/forums/...&postcount=616
Bobbylite-4010.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...34&postcount=6

- 3835A766
Beast200-4200Mhz @ 1.425V HT Off http://www.xtremesystems.org/forums/...7&postcount=12
The-Fox-4199.8Mhz @ 1.416V HT On http://www.xtremesystems.org/forums/...7&postcount=50

- 3837A768
Ghigo-3800.0Mhz @ 1.34V HT ? http://www.xtremesystems.org/forums/...30&postcount=9

- 3837a769
Nosboost300-No Results Posted.
[STABLE]Hot’n’Chilly-3800.0Mhz @ 1.320V HT On http://www.xtremesystems.org/forums/...71&postcount=1

- 3836a772
Gligy-3800.0Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=227

-3836A866
Jupiter-3800.0Mhz @ 1.232V HT On http://www.xtremesystems.org/forums/...&postcount=467

-3836A867
Metroid-3717.8Mhz @ 1.160V HT Off http://www.xtremesystems.org/forums/...&postcount=552
Metroid-4009.2Mhz @ 1.248V HT Off http://www.xtremesystems.org/forums/...&postcount=560
Metroid-4009.0Mhz @ 1.272 HT On http://www.xtremesystems.org/forums/...&postcount=566

- 3837A909
Tjelaw-4200Mhz @ 1.362V HT On http://www.xtremesystems.org/forums/...postcount=1494
SmokeyTheBandit-4049.6Mhz @ 1.312V HT On http://www.xtremesystems.org/forums/...84&postcount=2
Bullu$-4226.4Mhz @ 1.448V HT On http://www.xtremesystems.org/forums/...7&postcount=16


Core I7 920 B Batch
-3837B072
Webwilli-No Results Posted.
Chri$ch- No Results Posted.

- 3837B076
Cky2k6-4005.4Mhz @ 1.344V HT On http://www.xtremesystems.org/forums/...17&postcount=1

-3838B079
Namegt-3780.0Mhz @ 1.168V HT On http://www.xtremesystems.org/forums/...&postcount=603
Namegt-4000.2Mhz @ 1.216V HT Off http://www.xtremesystems.org/forums/...&postcount=620
Chri$ch-4011.2Mhz @ 1.248V HT On http://www.xtremesystems.org/forums/...postcount=1465
Dengyong-4020.1Mhz @ 1.296V HT On http://www.xtremesystems.org/forums/...14&postcount=9 //Comment-Deng posted 1.296V but OCCT displays 1.10V, so not sure on that.

-3837B080
Dj883u2-3705.0Mhz @ 1.088V HT On http://www.xtremesystems.org/forums/...&postcount=684
Dj883u2-4010.0Mhz @ 1.152V HT On http://www.xtremesystems.org/forums/...&postcount=619
Dj883u2-4104.3Mhz @ 1.264V HT On http://www.xtremesystems.org/forums/...&postcount=650
Dj883u2-4515.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...&postcount=706

- 3837B194
Nilos-4200.1Mhz @ 1.392V HT On http://www.xtremesystems.org/forums/...51&postcount=3
[STABLE]ReverendMaynard-4199.9Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...22&postcount=5

-3837B215
DerekT-3183.5Mhz @ 1.136V HT On http://www.xtremesystems.org/forums/...postcount=1859



Core I7 940 A Batch
-3836A405
[STABLE]Rge-4200.0Mhz @ 1.376V HT On http://www.xtremesystems.org/forums/...9&postcount=24

-3835A730
Jcool-4400.0Mhz @ 1.504V HT On http://www.xtremesystems.org/forums/...postcount=1912



Core I7 940 B Batch



Core I7 965 A Batch
-3836A383
FuriousSalesman-No Results Posted.

-3835A538
Giorgos th.-5044.3Mhz @ 1.568V HT Off http://www.xtremesystems.org/forums/...&postcount=500
Giorgos th.-4805.9Mhz @ 1.536V HT Off http://www.xtremesystems.org/forums/...&postcount=492
Giorgos th.-4653.3Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=369
Giorgos th.-4423.9Mhz @ 1.440V HT On http://www.xtremesystems.org/forums/...&postcount=305
Giorgos th.-4271.5Mhz @ 1.424V HT On http://www.xtremesystems.org/forums/...&postcount=294
Giorgos th.-4102.3Mhz @ 1.360V HT On http://www.xtremesystems.org/forums/...&postcount=294



Core I7 965 B Batch
-3837B209
Kazukun-4200.1Mhz @ 1.544V HT On http://www.xtremesystems.org/forums/...postcount=1134

---

3838B079 batch :up:
http://www.playwares.com/xe/files/at...1/IMG_3745.JPG
http://www.playwares.com/xe/files/at...1/IMG_3749.JPG
http://www.playwares.com/xe/files/at...1/IMG_3744.JPG
http://www.playwares.com/xe/files/at...1/IMG_3753.JPG
http://www.playwares.com/xe/files/at...KEV3D6MK_2.jpg

No good without a proper stress test.

Quote:

---

Originally Posted by namegt

3838B079 batch :up:
[/IMG]

---

Check the directions to your waterblock. You don't have it mounted properly. It's rotated 90 degrees from optimal. The GTZ emblem is supposed to be perpendicular to the socket lock lever.

Ok, here's the latest I got with my 920 4.0Ghz @ 1.275V...3hrs prime95..don't want to drag it more as the temps are quite high....need to get a better cooler....:D

http://img.photobucket.com/albums/v4...3hrs_prime.jpg

Quote:

---

Originally Posted by tot31

Ok, here's the latest I got with my 920 4.0Ghz @ 1.275V...3hrs prime95..don't want to drag it more as the temps are quite high....need to get a better cooler....:D

http://img.photobucket.com/albums/v4...3hrs_prime.jpg

---

Not to rain on your parade...but any of these overclocks without having HT enabled are useless. We had these overclocks with the 775 series. The goal SHOULD be to have stable overclocks with ALL 8 cores running. Thoughts?

I was just giving my results. I'm not using any apps that use the other 4 virtual cores. I've tried gaming with HT ON and OFF and there're no significant diffenrences in my real world of gaming .If you don't like it's up to you as long that I'm happy with mine....

3837A728 with GIG X58 Extreme, just putting the finishing touches on the board and will load the OS in the morning. So i'll have results this weekend.

For the OS should i go with Vista SP1 64bit (using on all systems) or the new Beta Windows 7 64bit?

thanks in advance!

It's mounted on a horizontal bench, so I doubt that'll make a difference..

Quote:

---

Originally Posted by T_Flight

Check the directions to your waterblock. You don't have it mounted properly. It's rotated 90 degrees from optimal. The GTZ emblem is supposed to be perpendicular to the socket lock lever.

---

I know that a 10 minute run is not up to your standarts, but ambients here are near 35°C and I wont stress it with Prime for longer today.
Also, this machine have been up and crunching for 36h with this settings.

i7 920 - 3837B017
http://img255.imageshack.us/img255/9...truejp8.th.jpg

Just got my i7 920 from Ncix (vancouver) - 3837B290

Now its time to bench!

as far as I know the week 37B's are killer chips

Quote:

---

Originally Posted by theonlybabyface

Not to rain on your parade...but any of these overclocks without having HT enabled are useless. We had these overclocks with the 775 series. The goal SHOULD be to have stable overclocks with ALL 8 cores running. Thoughts?

---

Really? we had 4ghz with that voltage? :down:

Quote:

---

Originally Posted by theonlybabyface

Not to rain on your parade...but any of these overclocks without having HT enabled are useless. We had these overclocks with the 775 series. The goal SHOULD be to have stable overclocks with ALL 8 cores running. Thoughts?

---

I disagree with that. Everyone's goals are different. HT does very little day to day, and should be reserved for the individuals that utilize it.

Just my take :)

Quote:

---

Originally Posted by T_Flight

Check the directions to your waterblock. You don't have it mounted properly. It's rotated 90 degrees from optimal. The GTZ emblem is supposed to be perpendicular to the socket lock lever.

---

He has it properly mounted according to the instructions that come with the gtz.
Has someone found it better otherwise ?

Quote:

---

Originally Posted by tot31

I was just giving my results. I'm not using any apps that use the other 4 virtual cores. I've tried gaming with HT ON and OFF and there're no significant diffenrences in my real world of gaming .If you don't like it's up to you as long that I'm happy with mine....

---

Fair enough...to each his own. :)

Well HT does wonders in any multithreaded programs that are optimized to use x (= infinite number of) CPUs, which is what software should be programmed like these days.
If you are a DC guy, you'll see the benefits as well :up:

First post is updated with the charts, just giving a heads up to those who go straight to the last page.

I have a

3836A838
3837B317

wont be able to set system up for a few weeks tho :(

nostromo