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Does this stock i7 920 VID look ok?

post #1 of 17
Thread Starter 
I am following Chadamirs guide to overclocking the i7 920 and am trying to determine my VID.

As of right now, I have everything stock. I disabled EIST, C1 and all the other spread spectrum settings. I set the multiplier at 21x since I didn't have to enable EIST to do so.

I opened up CPU z and the core voltage shows 1.208. Funny thing was, I then opened up prime and started it, and CPU z still has the same voltage, 1.208. So is 1.208 my VID? Is that normal?

BTW..I have hyper treading on as I do video editing. I am only going for a 3.6 overclock. Do I need to turn that off to get my vid if I intend to keep HT on for the OC?
Edited by kleecomputer - 7/22/11 at 9:02am
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post #2 of 17
Keep HT on if your planning on doing video editing - 3.6ghz should be a fairly easy o/c, and yes your VID is 1.208 - I would start out by setting it to 1.275v and trying for 3.6ghz, should be an easy o/c for your chip.
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post #3 of 17
Thread Starter 
Does that VID seem high though for a stock i7 920?
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post #4 of 17
I ran mine almost completely stable at 4 GHz with 1.2 volts, but before I clocked and I was running prime it showed in CPU-Z as 1.25v, with the turbo thing enabled or something, so I'm not really sure. Right now 1.22v in BIOS and stable at 4.0 GHz, so I think you can go lower.
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post #5 of 17
I have yet to see an i7 920 D0 chip not be able to get 3.6Ghz at or below its stock vcore.
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post #6 of 17
They don't really have VIDs like older CPUs, but if you reset your CMOS and look at the VCore your BIOS sets on boot thats about as close to a VID you'll get. VIDs were used for binning back in the day, a low VID generally meant the CPU would be a strong OCer.

For an i7 theres no way to know how much VCore you'll need for a given OC until you try it. 3.6GHz is a very moderate OC, you should have no problems, and keep HT on for multithreaded apps.
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post #7 of 17
Thread Starter 
Thanks for all the input. Another question...I am a first time overclocker, I am using the following settings and have been stable on prime for 1.5 hours. (just a quick test)...no errors or BSOD's:
BCLK 172
DRAM: DDR3 -1379MHz
UCLK: 2758 MHz
CPU Voltage: 1.11875
QPI/DRAM Core Voltage: 1.20625

I am now at 3.61GHz with HT on.

Initially when my BCLK was at the standard 133, my dram was at 1600 MHz. I tried to use my PC to convert a video which used to take 10 mins tops at a complete stock setup, and now it is dragging.

When I changed the setting my dram went through the roof automatically, so i backed it down to the above setting (1379MHz). SHould i leave it there or increase it to what it was at (can't remember but it was way above 1600MHz)?

I hope this makes sense.
Edited by kleecomputer - 7/22/11 at 11:57am
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post #8 of 17
1.2 is a pretty normal vid for i7 920s. you should be able to hit 4ghz pretty easily with the right vcore.

also, i would leave the ram at 1600mhz. im quite certain you can change the dram multiplier to keep the ram locked at 1600mhz
 
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post #9 of 17
If you want to run your 1600MHz RAM at spec on that multiplier you will need to increase the Bclk to 200, you are currently using the 8x RAM multiplier, when your RAM was very high at 172 Bclk you were on the 10x RAM multiplier.

The other option is to OC your RAM, a good 1600MHz kit should hit 1720MHz, you may have to loosen your timings some though. The last case is to lower your Bclk to 160 and use the 10x RAM multi for 1600MHz RAM but a lower CPU OC.

4.2GHz is a very popular OC at 200 Bclk with a 21x CPU multi(4200MHz) and an 8x RAM multi(1600MHz).
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post #10 of 17
Thread Starter 
I didn't even see a ram multiplier on my board. (see sig)

Also, once I upped the bclk, I didn't see 1600MHz on their anymore. It goes from 1379 to 1724 and skips over 1600.
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