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OC plan for 4.0 on an i7 930, does this sound right?

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September 15, 2010 7:23:47 AM

I have been running 3.5 Ghz w/an Intel stock HSF, on an i7 930

67x21 @1.625 vcore, stable temps 65 in prime95, 1337 Memory, @ 1.50.

This is on an ASUS P6X58D-E, Corsair 1600 9,9,9,24, and an ATI 5770. I now have a thermalright Ultra-120 eXtreme and want to go farther.

I am thinking of working toward:

4.0Ghz by way of 200x20 w/1603 Mem.

This seems pretty straight forward, if I can get there.

I have some questions

where does the 1603 mem speed come from? I know that upping the BLCK ups the memory, but I am not sure what the ratio is and if it is constant.

Is there a reason to drop the mulitpier and up the BLCK? That would seem to take more power plus put my memory out of spec. But it does seem to provide more zip.

What about the PCIe and QPI, should those be adjusted some?

Oddly, the bios is reporting 6,6,6,18 on my 9,9,9,24 memory. Is this becuase I am running it under spec?

I am comfortable going with the 200x20 and see how far I can go, what voltages may be required to make it work, but 200x20 seems over simple and that by going a different route I can get more perfomance from the rig.

I am hoping for some opinions and answers and I hope I used most of the terms correctly. thank you for you help.

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September 15, 2010 6:04:29 PM
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1) What do you wish to accomplish by going from 3.5 to 4.0?
Gaming FPS is not likely to go up much with your 5770. To test this, reduce your OC a bit, and see how much the FPS goes down. If the FPS drops significantly, then 4.0 is a worthwhile thing to do. If it mostly stays the same, then you will be abusing your chip for nothing.

2) A vcore of 1.625 already seems high. My 920 shows 1.248 with a 160 x 21 oc and nothing else.
September 16, 2010 6:38:04 PM

hahaha, sorry, typo on that.....should read 1.1625....I managed to under volt the system to get it to clock up.

Now I am using 1.248, like you, to go to 3.8.

What do I hope to gain? Well if I said nothing that would seem flip, but honestly, I am mostly a hobbiest and think OC'n is fun. That and I teach CompSci at the local community college so every bit learned is a bit more to teach. (though unfortunately I don't teach much hardware)

I do play Star Craft II, but that does not seem that hungry a program?

And Sid Mier's Civilization, which I'd day doesn't need OC at all.

I would like to get into holographics, which I would imagine takes lots of power, but right now I am still looking for software in that area.
September 17, 2010 4:45:49 AM

Best answer selected by jerryl.
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