Core i7 Overclocking by Batch #

**danmoody** · 01-22-2009, 04:40 PM

hey i have 10 3836b043 920's here at my job would this be a good batch to pick up? also how do you think this board does in the oc option department ?

http://www.newegg.com/Product/Produc...82E16813128375

**kpablo** · 01-23-2009, 06:09 AM

Seems like the #3841A431 chips are just ok... i barely need to raise Vcore if i clock it to 3.8GHz HT On... but when i go to 4GHz and above... vcore required is too high... over 1.45v... So i am ordering soon an OEM chip from Tigerdirect and praying to gods to get a good batch.

**jVIDIA** · 01-23-2009, 06:12 AM

Just bougth on 920 3838B079. I have good hopes on this chip :p

**TheScavenger** · 01-23-2009, 09:36 AM

Originally Posted by jVIDIA

Just bougth on 920 3838B079. I have good hopes on this chip :p

Definitely let us know what you find. I will be putting together my system soon and I have the same batch#

**Bill Reid** · 01-23-2009, 10:30 AM

I'm a newb to all of this... any adivce appreciated.

920/P6T 1102 Bios, CPU Batch 3841A403
G.Skill F3-12800CL8T-6GBHK

I lifted these settings from another member that posted them here. So far no hangups...

CPU 1.35V
QPI/DRAM 1.35V
IOH 1.18V
IOH PCIE 1.50V
ICH 1.2 V
ICH PCIE 1.50V
DRAM BUS 1.64V
CPU Differential Amplitude 700mV
CPU Clock Skew Delay 100ps
CPU Spectrum Disabled
IOH Clock Skew Delay 100ps
PCIE Spread Spectrum Disabled

My results: What else do I need to call it good? BTW, regarding temps, pic was taken about 30 seconds after test completed.

**roller11** · 01-23-2009, 11:46 AM

Originally Posted by kpablo

Seems like the #3841A431 chips are just ok... i barely need to raise Vcore if i clock it to 3.8GHz HT On... but when i go to 4GHz and above... vcore required is too high... over 1.45v... So i am ordering soon an OEM chip from Tigerdirect and praying to gods to get a good batch.

I found that week 41 are very poor, tested 3 of them. BTW, I got a very good chip from tiger recently, it was a retail box. Good luck

**kpablo** · 01-23-2009, 11:57 AM

Originally Posted by roller11

I found that week 41 are very poor, tested 3 of them. BTW, I got a very good chip from tiger recently, it was a retail box. Good luck

Could you tell which batch # you got from them?

**MisterMagoo** · 01-23-2009, 01:21 PM

Here is mine. I had 4.3 going for a while but could not prime it. It was all the way up to 1.57v +400vtt and I am not sure if it is safe to go past that on voltage. Right now I am 1.55 +325mv vtt stable 201x21. 61/60/59/59 load on water. 32C idle. Batch 3839A588

**roller11** · 01-23-2009, 04:00 PM

Originally Posted by kpablo

Could you tell which batch # you got from them?

3836A977 you can see my validation screens on the core i7 OC thread

**kpablo** · 01-23-2009, 06:21 PM

Originally Posted by roller11

3836A977 you can see my validation screens on the core i7 OC thread

Thanks...
Maybe going for the retail... I will order this monday...

Btw... you know if i contact them they could confirm which batch they have? or it's too much asking to tigerdirect... ^_^

**JAG87** · 01-23-2009, 06:37 PM

LMFAO, guys you're not going to believe this... this is too funny.

I return a 3836B043 locally after hearing from a few guys that this batch wasn't very good, and I order blindfolded from NCIX. Today I open the box, and this is the batch on the CPU: 3836B043...

I think I am going to give this chip a whirl, better not screw around with fate again...

**anzial** · 01-23-2009, 06:38 PM

What goes around, comes around

Don't worry, me thinks it's a good chip, not spectacular but good.

**namegt** · 01-23-2009, 07:11 PM

Batch " 3838B079"

Temperature -2
Low voltage validation 1m pi

4G 1.2v

4.2G 1.25v

DFI UT X58 I tested soon

**roller11** · 01-23-2009, 07:33 PM

fantastic rig you got there namegt! Please post results of your DFI

**Hazzan** · 01-23-2009, 10:39 PM

@namegt : can you try with 3D bench please....

**namegt** · 01-23-2009, 11:02 PM

3D bench voltage going to need a lot more to see
Voltage 1m pi valid only

**jVIDIA** · 01-24-2009, 08:30 AM

namegt ... just bougth one 3838B079

Can you post your voltage bios settings ?

**JWMc** · 01-24-2009, 09:29 AM

Originally Posted by roller11

I found that week 41 are very poor, tested 3 of them. BTW, I got a very good chip from tiger recently, it was a retail box. Good luck

I guess there are duds and gems in every batch. I got to 4.2ghz LinX x 20 17.3k problem size stability with HT enabled on air cooling @ 18C ambient with 89C max core temp. It was getting up to 97C with normal ambients. Also that was with the motherboard running bare on the table.

**roller11** · 01-24-2009, 10:36 AM

Originally Posted by JWMc

I guess there are duds and gems in every batch. I got to 4.2ghz LinX x 20 17.3k problem size stability with HT enabled on air cooling @ 18C ambient with 89C max core temp. It was getting up to 97C with normal ambients. Also that was with the motherboard running bare on the table.

Yes, that's extremely good results, better than top 1% especially considering you were at 89C. All the week 41 I'm refering to were from Amazon.com/Buynow.com which pull from the same warehouse. I'm thinkin' maybe they just got a bad batch. What is your highest 'boot into windows and get a print screen' number? I just did a 4641 Mhz with a superpi pass.

**Pisklink** · 01-24-2009, 12:45 PM

Yesterday I received my new hardware including an i7 CPU with batchnumber 3836A875. I still have to wait for some WC'ing stuff to arrive this week before I can test it. But is there anybody who could tell me if this is a good batch? Thanks in advance.

**roller11** · 01-24-2009, 03:04 PM

Dunno about this particular batch, but in general, week 36 seems to be one of the best

**liftedcj7on44s** · 01-24-2009, 03:11 PM

week 36. refering to 3836A or 3836B

**buddatech** · 01-25-2009, 01:12 AM

Anyone have any knowledge on Batch# 3837B367 can't test yet board will be in next week?

**PRJ** · 01-25-2009, 04:08 AM

Just finished lapping my i7 920 3837B390 & coolers

Will post Results later, still waiting for my DFI X58 board from motherboardpro.com

**icecold316** · 01-25-2009, 08:42 AM

Originally Posted by roller11

I found that week 41 are very poor, tested 3 of them. BTW, I got a very good chip from tiger recently, it was a retail box. Good luck

What is the definition of a Good Batch for i7 for running 24x7, in terms of BCLK/Voltage ?

Thread: Core i7 Overclocking by Batch #

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