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OC'ing but bios wont start up

post #1 of 12
Thread Starter 
So i have been starting my OC. Basically all I did was go into bios, set the PCI frequency to 100, and the PCI clock synch to 33.33. Then I set the dram frequency at 533 and incrementally upped the FSB. I was able to get it to 295, but any higher and after I exit bios, it wont start up. And if I try to restart it wont load bios. So I tried increasing the voltage to 1.4 (lowest possible manual setting) and it still doesn't work.

Also how come whenever I increase my FSB the DRAM frequency changes?


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post #2 of 12
Check out this guide Intel OC Guide

Also, please fill out your system specs under the User CP menu. Thanks.
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post #3 of 12
Thread Starter 
sry bout that. So it seems from that guide I might need to loosen my RAM timings... Is that normal, it seems unnecessary since I'm only OC'ed by like 10% or I could try upping the RAM voltage? And for DDR2 667, I dont want that ram speed getting higher than 667, right?
post #4 of 12
Thread Starter 
anyone?
post #5 of 12
Lower your ram settings, I know in won't start up if my ram is OCed to far. I'd have to reset the bios after that. Usually happens when I tighten them too much, but I cant get my FSB to go over 27 more then normal so that could be just mine .
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post #6 of 12
It's a bad idea to mess with your PCI clock frequency or synch. You want to adjust only your CPU FSB, RAM divider, and CPU voltage to start things off.. The PCI clock should be left stock all the time. It rarely has good results when you mess with it.

I'm not sure if Intel has one, but makes sure that the HTT Mult is set right. FSB x HTT should never be over 1000. I have a gut feeling Intels don't have that option, though...
    
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post #7 of 12
Thread Starter 
I really cant understand why I would need to loosen the timings. I have DDR2 667 ram, so I should be able to get my FSB up to 333Mhz without losing my timings to above the stock level, no?

But I will try it, which should I loosen the ram timings to?
post #8 of 12
What's your command rate? 1T or 2T? My CPU wouldn't boot at 1T and I learned, from Nasgul, that Intel chipsets can't do 1T, 2T is a go. That probably won't help, but that's what happened to me last night.
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post #9 of 12
Quote:
Originally Posted by pow3rtr1p View Post
It's a bad idea to mess with your PCI clock frequency or synch. You want to adjust only your CPU FSB, RAM divider, and CPU voltage to start things off.. The PCI clock should be left stock all the time. It rarely has good results when you mess with it.

I'm not sure if Intel has one, but makes sure that the HTT Mult is set right. FSB x HTT should never be over 1000. I have a gut feeling Intels don't have that option, though...
The first thing you SHOULD do, is lock it; like he did...
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by Audi View Post
What's your command rate? 1T or 2T? My CPU wouldn't boot at 1T and I learned, from Nasgul, that Intel chipsets can't do 1T, 2T is a go. That probably won't help, but that's what happened to me last night.
I have no idea what a command rate is. I didnt change anything like that. but ill check it out.
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