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i7 875k to 3.8GHz - Page 2

post #11 of 27
Thread Starter 
Quote:
Originally Posted by justinjja View Post
What mobo?
Gigabyte UD3L
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post #12 of 27
Quote:
Originally Posted by dszx View Post
Gigabyte UD3L
That doesn't look like quite the board for OCing. No VRM/Mosfet cooling, 4 pin cpu power, very little phases.

A chip like that deserves a proper board to reach it's full potential
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post #13 of 27
Quote:
Originally Posted by MRHANDS View Post
That doesn't look like quite the board for OCing. No VRM/Mosfet cooling, 4 pin cpu power, very little phases.

A chip like that deserves a proper board to reach it's full potential
The motherboard doesn't make the chip, the chip makes the chip.

I would say keep your vcore where it is and raise your vtt. You play plenty of room left for raising the vtt.
post #14 of 27
Thread Starter 
Okay, it seems like the most stable so far is
152 x 25 with 1.21 vtt. Thing is, it failed after 30 minutes of Prime95.

I'm gonna try raising vtt to 1.29 to see if it helps.
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post #15 of 27
Quote:
Originally Posted by dszx View Post
Okay, it seems like the most stable so far is
152 x 25 with 1.21 vtt. Thing is, it failed after 30 minutes of Prime95.

I'm gonna try raising vtt to 1.29 to see if it helps.
1.29v is probably more than you need. I would start at 1.27v then go up or down from there.
post #16 of 27
Try baby stepping the VTT, though with that chip I'd not fend around with the BCLK..I'd just try upping the multi..why not 133x29? Unless I'm sort of a crazy guy..lol, considering that his mobo isn't up too snuff as much as his cpu is. Besides, you paid a good premium for the unlocked multi, maybe that'll help.
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post #17 of 27
Thread Starter 
I took your suggestion and ran 133 x 29.

Most stable so far, only worker 4 failed after 45 minutes of testing.
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post #18 of 27
^ Your not the only one that is gettin crappy OC as well

-TrippinBimmer
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post #19 of 27
Quote:
Originally Posted by cory1234 View Post
The motherboard doesn't make the chip, the chip makes the chip.
Not true at all. Your overclock has to do with an accumulative total of your hardware capability, which include your cpu, ram, and motherboard. The motherboard is a key contributor to the health of your overclock, especially when your motherboard does not have proper cooling on key elements that effect cpu stability.
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post #20 of 27
If you can, take the chip back and exchange it for another. If they ask why, tell them it just sucks.
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