Core i7 Overclocking by Batch #

**eva2000** · 10-21-2009, 01:56 AM

week 45 is a nice week in intel land

I got my 5th i7 920, and it's a gem batch week 45! 3845B260

Means going to sell my older i7 920 now and keep my week 45 family together

i7 920 3845B260
W3520 3845A935
W3540 3845B010

**CryptiK** · 10-21-2009, 03:07 AM

Nice one, did you pick that up new? If so where?

**eva2000** · 10-21-2009, 03:20 AM

2nd hand off OCAU forum member - who upgraded to W3570 3849xxx

**zalbard** · 10-21-2009, 03:30 AM

Sick chip! Who needs B batches now...

**Osterman** · 10-22-2009, 01:26 PM

Nice one Eva, you are "the B boy"
By the way, someone have a 3844Axxx i7 920?
Because I found one that could achieve 4.4ghz with 1.36 and it did a 3dmark 06 really well.

**dan7777** · 10-22-2009, 01:47 PM

just got my new i7 up and running very happy with the evga sli le board along with g.skill ram the info..http://img42.imageshack.us/i/40563362.png/

**H2O** · 10-24-2009, 07:07 PM

I picked up a 920 at the Boston Microcenter today. It is batch number 3931A318 (all of the 920s were from this batch) and it appears to be a very recent batch, as it was only packaged on October 4th. I'm going to sit on it until I get my Classified around Christmas, but does anyone else have this particular batch?

**angkies** · 10-26-2009, 05:24 PM

i7 920 D0 3910Axxx
DFI DK X58
Trident 12800 CL6
Enzotech Luna, XSPC RX360. MCP355

**CryptiK** · 10-27-2009, 02:09 AM

Nice, seems like the 3910A batches are hit and miss. What is the full batch number?

**Lu(ky** · 10-27-2009, 02:44 AM

CPU: Intel i7-920 4.2GHz 1.225V 3849A832 MEMORY: Mushkin Redline 1600MHz 6-7-6-18-40 1T

Still messing with it I know I can push this CPU to 4.5Ghz with no problems.. I need to remount CPU block then the real fun will begin..

**rusty** · 10-27-2009, 04:51 AM

Originally Posted by Lu(ky

CPU: Intel i7-920 4.2GHz 1.225V 3849A832 MEMORY: Mushkin Redline 1600MHz 6-7-6-18-40 1T

Still messing with it I know I can push this CPU to 4.5Ghz with no problems.. I need to remount CPU block then the real fun will begin..

can you increase the image size ? I can't see anything on that pic

**Lu(ky** · 10-27-2009, 05:09 AM

Originally Posted by rusty

can you increase the image size ? I can't see anything on that pic

F I X E D on post #1410 sorry about that...

**|MB|** · 10-27-2009, 12:59 PM

Anyoen with an experience on a 3926A batch 920?

**Zaxis01** · 10-27-2009, 07:32 PM

Is this a decent voltage for a C0 overclock?

**Burninator** · 10-27-2009, 08:52 PM

i7 920 d0 batch 3849b028

4.2ghz, 1.2625v set in bios, HT off
4.2ghz, 1.275 set in bios, HT on

**Chicken Patty** · 10-27-2009, 09:08 PM

good CPU burninator. Similar clocks than mine. i crunch 24/7 with this so I don't go much higher. But 4.2 Ghz comes at about the same voltage as your CPU

**nipper575** · 10-28-2009, 04:59 AM

Originally Posted by Zaxis01

Is this a decent voltage for a C0 overclock?

pic

For that OC, it is good. I need ~1.2 volts to hit 3.68GHz (160 x 23). 1.296v gets me to 4.0GHz (174 x 23).

**LightSpeed** · 10-28-2009, 05:41 AM

This is for 24/7 usage. That RAM/NB speed needed a 1.31v Uncore/1.64vDIMM for full stability. However the uncore seems to always be undervolted (at load it hovers around 1.25-1.28). Is this always the case? CPU vcore is 1.29v at load.

Any suggestions? On a side note, im not too impressed with this cogage true spirit. The mounting sucks (push pins?!) and i need to mod it for more pressure. CPU temperatures under OCCT medium data set+HT seems to rise upto 85C when the CPU is at 4.1..Hence im just being safe for 24/7

Btw, mobo used is Rampage II GENE and RAM is 3x 2gb 1866 8-8-8-28 reapers

**dan7777** · 10-28-2009, 05:53 AM

i7 DO batch * 3927A336 4.2 HT on 1.27Vcore

trying for 4.4

**CryptiK** · 10-28-2009, 06:31 AM

Just a thought; perhaps there should be a little more focus on showing at least a semblance of stability with these screens, I'm seeing a lot of 'CPUZ only' pics, which really dont
give anyone the slightest idea of what the particular batch of CPU can do.

**Sam_oslo** · 10-28-2009, 07:50 AM

LOL, some of these CPU-z screens can be as good as my 6GHZ

It is CPU-z validated too, LOL.

**CryptiK** · 10-28-2009, 08:35 AM

Nice 28x MP on the 3520, and congrats on the 6GHz @ 1.296v

I'd certainly be in favour of providing the full batch number (not just eg: 3850A) as there is so much variation. Also perhaps just an hour of Prime 95 small FFT's and/or 10 x Linx max mem, as its not hard to do and allows
one to ascertain a little better than a CPUZ only screen shot a given processors capabilities.

**uranium** · 10-28-2009, 09:11 AM

Originally Posted by eva2000

week 45 is a nice week in intel land

I got my 5th i7 920, and it's a gem batch week 45! 3845B260

How's your chip doing? I have exactly the same one

- but not sure my board is doing it justice....

**G4h4o8s6T** · 10-28-2009, 09:32 AM

920 Batch# 3925A261

4.2ghz 1.39v HT On

Not the greatest, but Im happy with it

**angkies** · 10-28-2009, 10:45 PM

Originally Posted by CryptiK

Nice, seems like the 3910A batches are hit and miss. What is the full batch number?

3910A778

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