My baby :)
http://img43.imageshack.us/img43/2425/s5002485.jpg
http://img208.imageshack.us/img208/3586/beztytuusjg.jpg
Printable View
6-7 minutes prime?????????????????? hardly stable....Quote:
Originally Posted by seba84_2005
LoL
lol as long as it gets the job done for what he needs it to do, then i guess it's "relatively stable". :D
lol!!! then he should post a screenie of the proggy that he uses performing the task at hand!!!!Quote:
Originally Posted by Stvwndr219
I.E.. I back up my Blu-Rays discs, so I would post a screenie of ripbot or BD- Rebuilder encoding the movie to mpeg on a second pass!! (loads up the 8 cores 100% for a few hours) lol
hmmm seem to be that batch "38xxxxx" is better than "39xxxxx" isn't it????
I have not played with a 39 batch yet.Quote:
Originally Posted by PatRaceTin
Batch 3845B271
http://img171.imageshack.us/img171/3350/temps43.th.jpg
Was not stable doing 4.3 @ 1.3V with HT ON but is fully stable @ 1.31v.. But have not done much fine tuning yet.
Will upload screenshot soon :)
Just picked up 3850A849 dated 5.4.09 Costa Rica from Microcenter for $200. Wont have other parts till Thursday
you guys are making me want to work with my chip again, not that i really worked that much with it to begin with.
Very nice for a 3851 batch, mind telling me your voltages? (3851A262 here)Quote:
Originally Posted by seba84_2005
my batch 3852A328
quick test 20min
http://img15.imageshack.us/img15/396...2e4510rt28.jpg
excellent thread!!! :toast:
so whats the conclusion? a>b? how about mfc location, are all i7 chips made in costa rica?
if not how do chips from diferennt fabs compare?
fyi, i added all numbers from your excel sheet to a graph and played around with it... for those interested:
average reported overclock is ~4ghz with ~1.4v
average voltage scaling based on reported results is 150mhz per .1v vcore
and something that didnt surprise me but maybe its news to some, lower temperatures dont mean much... you might be able to get the same overclock with less vcore if the temps are low, thats it... lower temps dont notably translate to higher clocks. notably higher clocks at the same vcore are only possible with notably lower temps in the -100C range.
improved aircooling or watercooling only allows us to run higher vcores and hence higher clocks without running into critical cpu temperatures of 80C+ and it allows us to enable HT. for normal gaming and desktop usage overclocking i7 seems to make very little sense... it makes much more sense to reduce vcore to 1v and then push for the highest clocks which will be more than fast enough and consume a lot less power and run much cooler.
Week seems to be more important than A/B. Week 45's are clearly the best. There are strong chips in other weeks, but it is very batch specific.Quote:
Originally Posted by saaya
Yes, all Nehalem cores are made in Costa Rica.
I have the chip below and I'm having serious problems with BLCK being only stable at 180 at CPU 1.20V with Prime95 25.9 (x64) Blend for 11-hours+ with temperatures of 80C peak, 40C idle on RealTemp 3.0 and ambient 29C outside.
Processor: Intel Core i7 920 2.66 GHz
Revision: D0 (SLBEJ)
FPO/Batch#: 3901A238
Date of purchase: 2009-06-29
Place of Purchase: Newegg.com
When I have more time I'm going to try to see if I can get 190 to work. From my short testing today anything at BLCK 200 MHz even with CPU V 1.45 and QPI 1.45 ends in immediate freeze within 15-seconds while doing Prime95 SmallFFT test. I think that it might be my processor, memory, or something else in the equation.
(Update: I did testing and my maximum voltage is 1.250 V which hits temperature peak of 94C for my air cooling setup. At this voltage BCLK 180 is stable but 190 is not and leads to a freeze within minutes. I have settled on 3.60 GHz at BCLK 180 x Multi 20. Might test BCLK 185 for 3.70 GHz but I don't have much hope without bumping voltage up.)
I have my own overclocking thread below with the details of the problems I'm having. It might just be my inexperience with overclocking since my last attempt on AMD Opteron 175 2.2 GHz only ended with 2.5 GHz 3D game stable, and 2.75 GHz 2D prime stable.
HardOCP - Overclocking Air: Intel i7 920, Asus P6T, G.Skill DDR3-1600 C8, Xigmatek HDT-1284E
Quote:
Originally Posted by JakFrost
Hello Jake, i'm seeing that at 180 BCLK 1.25v you are hitting almost 90ēc. I think as you add just a bit more voltage to go over 180 BCLK i think you might just be running the CPU too hot and its shutting down or causing all sorts instability. What do you say?
wow, continous prime95 at 4510...excellent work! Great chip you have there, maybe the later batches are as good as the earlier. thanks for sharing :)Quote:
Originally Posted by PatRaceTin
tinker tinker.. :D
W3520 3845A935 , -40C single stage phase cooling.. :up:
SuperPi 1M 7.969s
http://www.freeimagehosting.net/uploads/8d653fb201.jpg
Man, i get so jelous of all Good D0 cpu's =)
i get 1.36v at 4.2 with NO HT! and about 1.48 with HT... my C0 is pure garbage against this!
dont feel bad I have a D0 too! :DQuote:
Originally Posted by Infa
FPO/Batch#3911A207
Looks like a bad chip. It can reach 4Ghz on vcore 1.3v :(
http://img123.imageshack.us/img123/1859/98274596.jpg
Very nice clocks, Anth, you've got a winner there!Quote:
Originally Posted by Anth Seebel
Absolutely you are right. I have thermal issues in this case even with the Xigmatek HDT-1284EE air cooler that I thought was supposed to be pretty good at lower price than the Thermalright True 120. This is also an awesme all aluminum Lian-Li V1200 Plus case that has a lot of great thermal management features. Check that thread I linked to above.Quote:
Originally Posted by Chicken Patty
One thing that I have to try is setting the Asus BIOS Q-fan setting from Standard to Turbo to see if the motherboard will pump some more voltage to get the fan RPMs higher.
I am a very experienced computer user and admin but frankly overclocking has never been my forte since I do not want to invest in water cooling seeing as I am happy with how quiet my system is now on air. It is a big jump to move from air to water and to do it properly with good quality equipment.
I am going to try a little more to push this chip on air at least to 3.8 GHz but frankly I will not be truly diappointed if 3.6 GHz is the max for me.
I can just say one thing. Invest in a really really good cooler and call it a day if water cooling is not for you. for example a TRUE with high flow fans in push and pull. You can hook up the fans to a controller so that you can turn them down and enjoy from a quite PC. If you want to do some benches or what not, you can turn them up and enjoy a bit of benching. Can't go wrong with that.Quote:
Originally Posted by JakFrost
Thing with i7's, even if you go water its not enough, there is never enough radiator to cool an i7. Check out the thread below its got a few pages, but go through it. Its my i7 watercooling thread . Its got pictures and info bout my watercooling setup. If you have any questions feel free to PM me bro ;)
http://forums.techpowerup.com/showthread.php?t=82607
I hear you and you have a nice setup from what I see. The thing is that I am just not convinced that water cooling is a worthwhile endeavor for me because I do not get the thrill from benching or overclocking anymore. Back in the days I was happy to push my system and get nice benches but as I started using the computer more I want more features and software and I am not too concerned about speed. Due to this I cannot justify the expense and effort of setting up water cooling on my system when the clocking rewards will be so small.Quote:
Originally Posted by Chicken Patty
Of course I like to run my favorite games like STALKER with smooth frame rates but the hell of a nightmare that my DFI nForce4 motherboard and AMD Opteron 175 gave me now make me want to ensure absolute consistency, stability and reliability from my system more than slightly higher clocks on a system that would flake out on me.
Due to these facts I am going to try and stick to air in my system and optimise the setup I have with my cooler. I might by another fan to mount it on the other side to give it a push and pull config but I do not want to switch heatsinks because I don't think that a different one will give me any significantly better thermal reduction than the four heatpipe with direct contact on that I have now.
I just hope that I don't find out that I got another gimped chip with my batch that only is BLCK stable below 200. But even if that is the case then I will still keep this CPU even at the 3.6 GHz I was able to reach since a different batch will get me to maybe at 3.8 GHz before the thermals get out of control.
I will play with the system when I come back after the weekend. Posting from the road.
oh ok, I completely understand what you are saying bro and I agree. Me myself haven't overclocked in months. just been using the computer and enjoying it. Just if you can getting two high flow fans push and pull with a fan controller, will be great. you can turn them down for daily use. Whenever you wanna have some fun and bench, just crank them up and have the fun you wanna have. That sounds like a winner.Quote:
Originally Posted by JakFrost
Got a 3845B260, anybody with any info regarding how OCable this batch is?
cheers :up:Quote:
Originally Posted by roller11
1 of the better batch's i believe ;)Quote:
Originally Posted by jcniest5
i bought a w3520 batch 3903A and it's on the way, anyone know this batch ? i hope it perform well
Never tested that particular batch, but all of the ten or so week 45 B chips I've seen have been spectacular. I'd definitely hang on to it.Quote:
Originally Posted by jcniest5
5111 and a sub 8 second superpi run to boot,wow!....fabulous result Anth! Looks like the week 45 A chips are as good as the B batches, nice going!Quote:
Originally Posted by Anth Seebel
I've got a W3520 batch 3849A773 here. Seems to do ok @180 x 21 (3780mhz) @ 1.18 VID, 1.23 VTT, 1.65 VRAM and runs at around 80 degrees C with the stock cooler. (A tripple and double rad will be cooling this thing soon).
Anyone else have the the same batch as me and what are your temps and voltages like?
Just got this little baby.......i7 920 batch#3845b260 doing 4.05g on 1.25v in bios on [r2e mb] 213bclck 1700m
Have you tried 19x215, 21x205 or 225x18? I have the same batch here, but I haven't opened the box yet. :shrug:Quote:
Originally Posted by Nunzi
Thanks will give it a try later............
send it my way!!! :shocked:Quote:
Originally Posted by jcniest5
I'm sure I could find the time to test it for you :rofl:
Uh huh...for a price, I can send it your way. :yepp:Quote:
Originally Posted by hlonipha
thanks , aye A batch seems ok :DQuote:
Originally Posted by roller11
I got 4.5ghz stable on water with my 965 Batch # 3836a767 but it needs 1.5v core
has anyone tested 3903A468 yet?
well i have w3520 3903A937
here's a quick result
http://i381.photobucket.com/albums/o...3A937-crop.jpg
i think it's not too bad
i haven't test it further, so i don't know how it perform on a higher clock.
4.0ghz with 1.2xx V isnt bad at all.Quote:
Originally Posted by nyeah
however, i think yours might be little different than mine.
this guy has exact same one as mine.
http://forums.overclockersclub.com/?showtopic=165856
maybe you can post yours :D
i see that batch better than mine.
nyeah, whats your lowest vcore 4GHz stable?
my mobo gets here next week. ill let you know.Quote:
Originally Posted by nyeah
my goal is to reach 4ghz with the resaonable temp.
i shouldve picked 3849b batch on ebay, which would have been
a safe bet.
SS i posted above is my stable vcore, lower than that i get bsodQuote:
Originally Posted by LiberalElephant
Good day guys. I have a new contribution. She cooks so I am not entirely sure it is worth it at the moment, but here is a quick test. Batch #3910A372. *updated 7/26/2009*
Voltage changes:
CPU 1.26 in the bios
QPI 1.35
DRAM 1.66
CPU PLL 1.88
HT On
Turbo Off
http://img258.imageshack.us/img258/9804/4050i7.png
Asus P6T Deluxe V2
OCZ Platinum 12800 3X2GB 7-7-7-23
Coolermaster V8 Heatsink
Is it just me, or does it appear that the 39xxx chips are a bit worse than the 38xxx chips?
well, it's a new batch, who knows? maybe after this someone will find a good 39xx batch.Quote:
Originally Posted by LiberalElephant
or just buy the 38xx, it will a safe bet.
What is your QPI/VTT voltage?Quote:
Originally Posted by hetsaq
I was thinking that possibly Intel was using the 920's to roll out the d0 stepping and they weren't binning the silicon, hence you would have some 975 quality 920's in the earlier batches. Intel was probably still binning them and I am probably wrong, but it was just a thought :up:Quote:
Originally Posted by nyeah
Post updated for you Elephant. :)
oh hetsaq your temp is in danger zone
in my experience batch 38 is generally better than batch 39
my lastest cpu (after playing around 2 weeks and i sold it today)
3852A328
http://img115.imageshack.us/img115/1...ewfanrt275.jpg
I have not seen so many 39xx chip yet, I will receive a 3912A888 this week. So far 38xx appear to oc better but I think it is to early to say, right?
Any difference in bclk or memory handling?
http://img12.imageshack.us/img12/5642/4ghzi7n.jpg
temp seems little high even with the v8 cooler.
You're probably right, it probably is too early to say. I think I am just trying to see patterns within the 38xxx chips when there really aren't any patterns to be seen.Quote:
Originally Posted by Vega
Anyone else has result from batch 3844A717?? :D
your temp is dangerous mate, try reseat the cooling/ reapply the TIM.Quote:
Originally Posted by sodina
Right, this is something I figured out long ago to explain the counter intuitive "later is worse" observation we see everytime a new chip is released.Quote:
Originally Posted by LiberalElephant
It seems like as the process matures, Intel learns more yet the chips slow down, each batch is worse than the previous batch. How can this be? WHen the 920 D0 first came out, there was no w3540 or i7 950, only the 920 D0 so every chip was labeled "i7 920 D0" even the ones that had greatly superior AC characteristcis, the 'golden' chips. Later, those same golden chips were labeled w3540/950 and Intel charges twice as much.
So it isn't that the chips slow down, it's that all the good 920s are being screened out and only the slower ones are labled 920.
I will try again with the seating this week.
@hetsaq, try OCCT CPU Stress test 3hours Not the linpack and check if you are stable, works better for me than prime95 and LinX
I will try that. I just re-applied the heatsink and goop. Temps are already about 6-7 degrees lower under load.
i believe im getting a batch 3910 this week..as soon as i get everything reinstalled ill do some testing to see what she can do..hope they arent worse then the 38s :(
Update for 3851A262 :
old setup turbo off, multi 20x & bclk 200 -> good for 4 GHz obviously needed vcore of 1.4V set in bios (1.344 stressed cpu-z)
new setup turbo on, multi 21x (with turbo) & bclk 191 -> good for 4 GHz again but now only needs vcore of 1.31V set in bios (1.264 stressed cpu-z)
So it's not such a bad chip after all....20x just :banana::banana::banana::banana:ing sucks :s
Batch: 3845B271
CPU : 920
Cooling: TRUE BLACK (push/pull)
MOBO :P6T V1
max clock on air was 4.646 GHz
http://i389.photobucket.com/albums/o...hoto/sweet.jpg
http://i389.photobucket.com/albums/o...llload4ghz.png
Hello everyone, first post here. I was just about to comment asking if anyone has some experience with this batch #. Got mine at Microcenter last thursday, boxed 2/20/09. Is this a good batch #?Quote:
Originally Posted by ben805
good job fu bar, especially on air. Oh, and next time move the windows out of the way. I like to see peoples wallpaper :p:
My processor Intel Core i7 920 revision D0 batch 3901A238 from Costa Rica, 2009, week 01 is limited to BCLK 180 stable at 1.20 V. Not a good batch at all.Quote:
Originally Posted by Vega
XtremeSystems - Core i7 Overclocking by Batch # - Page 12 - Post 718
HardOCP Forum - Overclocking Air: Intel i7 920, Asus P6T, G.Skill DDR3-1600 C8, Xigmatek HDT-1284E
3845b228= 4ghz 1.232v
@fu bar, what's the pack date?
3849A960 - 4ghz @1.23V Stable
Still testing volts, but here is my D0 from Microcenter.
3849A866
http://i29.tinypic.com/inwd4y.jpg
4Ghz @ 1.3v however i'm still testing to see if I can go lower
I got a C0 Batch# 3838B556 anyone know where it can go up to? im using a UD5 and rest is in my Sig.
Thanks
My CPU is pretty close to yours. I've got a W3520 3849A773. Still on stock cooling, but can get to 3.8ghz on 1.1v.Quote:
Originally Posted by Roliath
thanks man need some LN2 lovin...thats a "positive blue leader" on the wallpaper lolQuote:
Originally Posted by Chicken Patty
positive blue leader?:shrug:Quote:
Originally Posted by fu bar
Guys how good is this D0 batch:
3847B022
Where did you get this from?Quote:
Originally Posted by JustCallMeFrank
Mine won't do 4.2 with 1.3ghz, I'm gonna play with it some more this weekend and see how far I can get with 1.35~1.37vcore past that my temps get too high for my taste.
Just got my 920
SLBEJ
3910A418
See what it'll do later tonight.
Especially B batch with low last three digits OCs really nice. They also have very low VID so it runs cooler, too. Do keep us posted, though, on how yours is doing as far as OCing is concerned. :up:Quote:
Originally Posted by Pepc619
scotti, I just got two of those processors, same exact numbers. Let me know how yours OC. Mine is going to be water cooled and the wifes will be on air.
I bought it from a guy who got it from a store in Australia (where I'm from). He told me he could get it to 4.2ghz on 1.38V on air. I'll be watercooling, so hopefully I'll get a bit further then that for 24/7.Quote:
Originally Posted by Roliath
Here its my results :)
Is not one of the best, but i will try get better clocks for now.
Core i7 920 @ 4200mhz / Vcore at 1.243 on load :D
When i make this test a was using the True 120, now i put a nice WaterCooler in here :cool: hehehe
http://img406.imageshack.us/img406/2...rei7920420.png
But the way...some one knows what the best bbclok i can get on P6T DLX V2?
hello,
i just got a 3908A407, im now doin prime 4.4ghz @ 1.4v
is that any good?
Batch #3849A769 4.2Ghz 1.23v load.
http://i552.photobucket.com/albums/j...2Ghzstable.jpg
this is going to be my 24/7 overclock
http://img23.imageshack.us/img23/2449/img0407pmi.jpg
http://img11.imageshack.us/img11/4020/78562572.jpg
hey,
so I tested my new D0 batch 3851A286
went up to 4,629GHz! on a foxconn bloodrage (p07 bios)
Still have to try different settings to see how far I can stabilise it. But it seemed ok until 4,3!
For sure 3,990GHZ stable with less than 1,3V
http://teamdlp.free.fr/pc/super%20pi.jpg
Nice CPU i7 975 :p:
Pseudo : HornetCup
Batch : 3945B239
OC CPU: 4600 mhz
vCore : 1.45
vQPI : 1.34
vPLL : 1.80
Mainboard : Asus P6T6 WS Revolution
cooling : WC 2rads 240+360
Temp : 19° C
Screen :
http://nsa08.casimages.com/img/2009/...3518472237.jpg
http://nsa07.casimages.com/img/2009/...3926139830.png
http://nsa08.casimages.com/img/2009/...3809559412.png
Did you get yours from the microcenter in westmont?Quote:
Originally Posted by Roliath
I have the exact same batch number - I saw two batches while I was there, 3844A717 (they had several) and 3849A866. I did a quick google search while I was there and the latter pulled up better results. Some claimed to do 3.8 on 1.1x, some 4.2 on 1.2x
let me know how yours turns out.
I'm considering going to the other MC to check out the batches there.
very nice hornetcup (green with envy) only joking m8 :)
Very nice Overclocking.
But... does someone has a D0 with the batch 3849Bxxx??
Anyone get their SLBEJ 3910A418 overclocked yet?
Do matching batches mean anything? I've seen pep with the same batch as mine (3850A975) with OCs in the 4GHz - 4.2GHz with 1.25/1.27v area and mine needing 1.32 for 4GHz and a whopping 1.4v for 4.2GHz
And maybe I just have a turd of a D0
Batches often let you know if its decent but obs some may be worse than others. Have you tried messing with the other settings to try lower the vcore?
I have 3849B056, very nice overclocker, I'm testing 4.1GHz for 1.231v in bios, currently stable so farQuote:
Originally Posted by Osterman
Yea, no joy but then again I'm not sure which bits to change for which problem, any suggestions?Quote:
Originally Posted by Brad8988