Core i7 Overclocking by Batch #

[jcniest5]

Bump for a continuation...

[Oupavoc]

so...whats the safest max vcore can we pump these thing to do a bench. I heard 1.45v-1.55 is fine? Is that right

[pingpong1455]

ill have some results of a intel batch # 3842A309 i7 920

in a month or so anybody heard how far i should be able to push it on lc

[pphx459]

Quick test from batch 8345B027

[enkie]

Hi, my contribution

System Info:

i7 920 D0 @ 4.2Ghz (Batch #3847A821), P6T6 WS Revolution, Corsair Dominator 3GB DDR3 1600 RAM, Water Cooled

Settings:

CPU Ratio: 21x
BCLK: 200
DRAM: 1600 mhz
UCLK: 3600 mhz
HT: On
Turbo: Off
C1E: Off

Voltages:

CPU Voltage: 1.27v(bios) (1.28v Loaded)
CPU PLL Voltage: 1.84v
QPI Voltage: 1.35
DRAM Voltage: 1.65

Timings: CL 8-8-8-21

[leejsmith]

This is my 24/7 rig.

P6t Dlx
ozc 3gb 1600 kit

Xspc delta v3 17 block
ddc 355 pump
feser xchanger 120 rad
xspc 240 rad

Core i7 920 D0 3845b071

[jcniest5]

This is my 24/7 rig.

P6t Dlx
ozc 3gb 1600 kit

Xspc delta v3 17 block
ddc 355 pump
feser xchanger 120 rad
xspc 240 rad

Core i7 920 D0 3845b071

On some OCs, I've found that doing only 5 passes of LinX didn't result with any error, but when I tried 10 passes, it errored out like 3/4 way into the test. So, you may want to test for 10 passes and see if it makes it. If it still does, then it's all good.

[leejsmith]

On some OCs, I've found that doing only 5 passes of LinX didn't result with any error, but when I tried 10 passes, it errored out like 3/4 way into the test. So, you may want to test for 10 passes and see if it makes it. If it still does, then it's all good.

This screen shot was just for a comparison to a system eva2000 ran. I have run overnight prime 95 with no problems and also used it for the last 3 weeks including a few games and some divx - wmv 9 hd encoding that use all 4 cores while still using firefox ect. I am happy it's stable and was thinking of dropping the vcore down a step.

[roller11]

Dry Ice results on batch 3845B027,Classified 760 :

http://valid.canardpc.com/show_oc.php?id=574756

Had time only for a quick max OC run, later I'll try some benchmarking under cold.

[marcolecorse]

Hi, my contribution

System Info:

i7 920 D0 @ 4.2Ghz (Batch #3847BO19), Asus Rampage Gene,Kingston value 3GB DDR3 1600 RAM, Water Cooled

Settings:

CPU Ratio: 21x
BCLK: 200
DRAM: 1600 mhz
UCLK: 3600 mhz
HT: On
Turbo: Off
C1E: Off

Voltages:

CPU Voltage: 1.27v(bios) (1.28v Loaded)
CPU PLL Voltage: 1.81v
QPI Voltage: 1.25
DRAM Voltage: 1.65

Timings: CL 8-8-8-21

[etoo]

Who knows the batch 3847B019 I7 920 D0?
is good?

[hlonipha]

So far

[Chicken Patty]

Mario, good job dude. You got a EVGA classified now?

[hlonipha]

Mario, good job dude. You got a EVGA classified now?

yes, I just got it today. I busted my UD5. While re-doing my water loop (added 3 more fans to my rad and changed tubing) My cpu block felt on the cpu socket of the motherboard and bent a bunch of pins. so far the classified looks good. the only thing is that It needs a bit more vcore than my UD5 to achieve same clocks. need to learn this bios better. oh btw I ordered a xeon W3520, it should be here next week.

[Chicken Patty]

yes, I just got it today. I busted my UD5. While re-doing my water loop (added 3 more fans to my rad and changed tubing) My cpu block felt on the cpu socket of the motherboard and bent a bunch of pins. so far the classified looks good. the only thing is that It needs a bit more vcore than my UD5 to achieve same clocks. need to learn this bios better. oh btw I ordered a xeon W3520, it should be here next week.

damn man, sorry to heard about the UD5. The classified looks like a really solid board indeed but i'm sure you were used to the UD5 BIOS. I'm sure once you get more familiar with this BIOS, you'll probably get better clocks out of it or as good as your UD5. THe Xeon should be nice. IT'll be nice if you do a comparison between both chips

[OBR]

Xeon W3540 batch 3845B010

4GHz - 1,26V real - in BIOS 1,30V with vDroop
4,2 GHz - 1,29V real - in BIOS 1,325V with vDroop
Max benchable on AIR in 3Dmarks 4,8 GHz ...



on Classified mobo

[Viss]

Good chip OBR

Got i920 910A250 from MSI contest which wasnt good at all, 1.30v needed for prime at 4ghz on air.

[phsinc1]

Good chip OBR

Got i920 910A250 from MSI contest which wasnt good at all, 1.30v needed for prime at 4ghz on air.

I have same chip, it is not good OC'er but I'm @4GHz with 1.28v Idle/Load in CPU-Z, seems like new batches aren't very good

[josk1]

hey everyone,

has any of you got his hands or seen a 3851A286 so far???

can't find it in your database, and since i have the opportunity to exchance my C0 with it .... ?

[Malik]

Hi guys yesterday arrived my i7, and the batch is : 3912A990, of course SLBEJ

Someone heard about this batch ?

[phsinc1]

Hi guys yesterday arrived my i7, and the batch is : 3912A990, of course SLBEJ

Someone heard about this batch ?

you have to try it, from what I have seen 39xx aren't very good, average 1.26v ~ 1.28v for 4GHz HT ON but there core temp are low compared to other chips with lower vcore

[Malik]

you have to try it, from what I have seen 39xx aren't very good, average 1.26v ~ 1.28v for 4GHz HT ON but there core temp are low compared to other chips with lower vcore

That is sad info for me

[hlonipha]

just got a W3520 batch number 3850A823 packing date 04/15/09. so far 4.2 ghz with 1.25v. testing some more tonight. Still trying to figure out this classified board.

[ex2cib]

just got a W3520 batch number 3850A823 packing date 04/15/09. so far 4.2 ghz with 1.25v. testing some more tonight. Still trying to figure out this classified board.

what cooler are you using?

I have the exact same chip, and its taking me 1.36v (cpu-z #) to do 4200 for a 30 minutes pass of OCCT.

HT on also**

[hlonipha]

what cooler are you using?

I have the exact same chip, and its taking me 1.36v (cpu-z #) to do 4200 for a 30 minutes pass of OCCT.

HT on also**

look in my sig. I'm on a custom WC setup