Core i7 Overclocking by Batch #

[Factotum]

hi guys
my Ci7 920 batch: 3839A626
209x21 LinX 20 times of run and prime blend stable
HT OFF
Uncore =209x16
DRAM = 209x8 8-8-8-21 1T
Vcore = 1.376[load linx 5100mb use]/1.392[load prime blend]/1.424idle
CPU VTT = 1.344load/1.328idle
vDIMM = 1.616

[Renegade5399]

I have a 3841A5xx (I have to verify the last digits) that is so far doing 200x20 with 1.344v. I am going to try the 21 multi and push farther a bit later today. I'll get back with details.

[ChaosAD]

We were at MC last Sunday and my Brother bought one of this same batch but he hasn't the time to let me assemble his rig yet (he is complete newb to PC assembly so I will have to put it together for him).

Come on post some results on this 3842A. I getting nuts here. Show some mercy

[speedy2721]

My chip is a 3842A, here are the results:

Speed: 4Ghz 19X211 Linx stable
Vcore: 1.36 idle in windows, 1.336 load
QPI: +0.21V (Bios doesnt tell exact value)
CPU PLL: 1.88
DRAM V: 1.65
HT: On

Here is the valadation link: http://valid.canardpc.com/show_oc.php?id=513494

I am trying to put up a pic showing it stable but I dont know how to post it, can someone tell me how?

Also to all of you people putting 1.4V and higher, the max safe volts for these chips is 1.375, so you should lower the voltage a little bit unless you dont mind going over.

[hector69]

Intel Core i7 920
OC'd to 3.32 GHz using stock cooler (starting to OC)
HT on, Turbo off, C1E and all other throttling options disabled using Intel DX58SO board.
Batch #3838A557

[MrMason]

Here is mine!

Batch # 3839A626

4018Mhz 19x212
Load voltage 1.27-1.28V

i7 920
Evga 58 SLI
Corsair Dominator 1600
Water

[Factotum]

MrMason
CPU PLL (uncore voltage)???
Vdram?

[Shad0WeN]

all these results really need to be put into some kind of database for easier browsing

read through 500 posts? no thanks!

unfortunately the database at overclockers.com is down for redesign

[Sam_oslo]

i920 #3837B017

CPU Freq.: 4009 Mhz
Hypert-hreading: on
BCLK: 211 Mhz
CPU Multi: 19x
Uncore multi: 16x
Dram Multi: 6x (@6-6-6-24 1.65v)
QPI link: 3800 Mhz
Uncore: 3380 Mhz
LOAD Vcore: 1.34v (CPU-Z)
CPU/QPI VVT: 1.34v
Cooling: Air (Noctua NH-U12P )
Testet : 1 hour primestable

@4.01GHZ (211x19) HT:on, 1.34v


Also an extra setup for applications without support for HT.
@4.2GHZ(200x21) HT:off, 1.37v


I have been using the 4GHZ + HT for 24/7 for a while now, and this is going to be my primely set up, but I have switched to 4.2GHZ HT:off a few times too.

[zlojack]

The have 3841A321 at a shop here. I'm tempted to pick one up and see what it does but I don't see that many 3841A results in the spreadsheet, though there are a few in the thread.

Are there any negative results from that batch?

Either that, or maybe I'll wait for the D0 stepping to hit.

[Factotum]

or maybe I'll wait for the D0 stepping to hit.

And x58 B3. You'll have to wait for a little over a month

[zlojack]

And x58 B3. You'll have to wait for a little over a month

A month for D0? I think I could do that. I'm currently running at 3.8GHz with 1.31v and the RAM at it's rated spec.

Still, the possibility of a 4.2GHz chip that I could then forget about switching for a year or more would be nice

[Renegade5399]

Those are my daily 24/7 settings. Batch #: 3841A529

I am now running the RAM at 8-8-8-20-1T though. That screenshot has it at 8-8-8-25-1T. The chip is 4.1-4.2 benchable with 1.44v, but 4GHz is the sweet spot for 2000MHz RAM.

[freaksavior]

dont have pics but have 3839A604 and did 4.3 @ 1.45 ht on and turbo on.

My temps were all around 90C

[ChaosAD]

dont have pics but have 3839A604 and did 4.3 @ 1.45 ht on and turbo on.

My temps were all around 90C

90C on water?

[hlonipha]

hey guys currently testing a new 920 batch#3841A554 (so far the new cpu is priming at 21x200 at 1.39v load HT off). I've seen a lot of people here running a single instance of p95, I've been running for my stability testing dual instances of p95. could someone here please let me know how many instances should I run and if intel burn test is better than p95. thanks.

[Classic Satch]

hey guys currently testing a new 920 batch#3841A554 (so far the new cpu is priming at 21x200 at 1.39v load HT off). I've seen a lot of people here running a single instance of p95, I've been running for my stability testing dual instances of p95. could someone here please let me know how many instances should I run and if intel burn test is better than p95. thanks.

One instance of the newest P95 should max out all eight threads with HT enabled. I run the Blend test to check the stability of my system as a whole. Intel Burntest is far better for determining the stability of your CPU. It will usually detect an error FAR faster than Prime and will increase your temps well above what P95 is capable of.

[hlonipha]

what version is the p95 to use ? where to get it

[Classic Satch]

what version is the p95 to use ? where to get it

I'm not at home now so I don't have the time to dig it up. Remember, Google is your friend.

[highoctane]

what version is the p95 to use ? where to get it

I run 4 instances 2 threads each of prime95 64bit v25.8, each instance uses 1.6gb of ram while I run one custom to use up a majority of whatever free ram is left, usually around 600mb for the last instance.

EDIT: I guess 25.9 is now available
ftp://mersenne.org/gimps/

[applescript]

anyone has a 920 3838B038 batch?

[FragMagnet]

anyone has a 920 3838B038 batch?

Not me, but I did see 10x 3838B938's on a shelf the other day and was tempted to try one

[=[PULSAR]=]

Just picked up two 3842A613 lets see how this new batch works

[jcniest5]

Come on post some results on this 3842A. I getting nuts here. Show some mercy

Sorry, his stuffs are still in bags...won't get to them until sometime Saturday. Will have some result soon afterward. But consider his board is an MSI X58 Platinum SLI, not sure how it will OC vs. R2E or other brands.

[zlojack]

I'm going to grab a 3841A321 today (if the store still has any left).

I'll report back on my findings here.