P45 tweaking exploits

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martini161
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P45 tweaking exploits

Post by martini161 »

Well i finally got the time to sit down and really play with my p45 mobo. it was long, it was hard, hell, im not even finished yet! but ive gotten some pretty nice results so far...
the players:
Gigabyte GA-EP45C-DS3R (W/C NB)
Q6600 G0 (1.2875v stock vcore, pretty good for a quad)
corsair 1600mhz 9-9-9-24 ddr3 (1.8v stock)
cooled with a no name gigabyte water block on the cpu (need to upgrade) swifty NB block, a rebranded dtek db-1 pump, and a swifty 2x120mm rad with yateloon 2000rpm fans in push pull
for pics go to my thread in the modding section, theres a link to it in my sig (click the one with the specs in it)
well the first thing i did was try to get the memory to run stock. i lowered the multi on the cpu to 7, and that got the memory going good at 1600mhz. of course, i could not be satisfied with those crappy cl9 timings though! so after many hours of tweaking and memtest, i managed to tighten them down to 7-8-7-17. not bad from 9-9-9-24. i still have yet to play with subtimings, but i feel like this memory can do more. i have noticed they love low volts though, i can boot at cl7 with 2.0 volts, but not anything higher :-k so far looks like i have some pretty nice ram!
next, i decided to find the max FSB. i got it to run super pi at 475 MHZ (3.8ghz on the cpu):
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valid: http://valid.x86-secret.com/show_oc.php?id=427082
and thats about as good as i can get anything, because for somereason after that my motherboard took a dump and now can only run at 3.0ghz max :(
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DMB2000uk
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Re: P45 tweaking exploits

Post by DMB2000uk »

Was some good going :)

But man, the breakage completely sucks, did you pump some voltage too far or something?

Dan
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martini161
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Re: P45 tweaking exploits

Post by martini161 »

dont know really, it might have been a semi bad bios flash that did it, kept giving me CMOS checksum errors when ever i tried to mess with the clock skews
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Gomeler
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Re: P45 tweaking exploits

Post by Gomeler »

I find leaving most things on Auto with Gigabyte P45 boards gives the best performance. Just manually set vCore, vDimm, vPLL, vFSB, and then your memory divider and FSB. Test at 6x multiplier also, I had a P45-DS3R do 535FSB with a Q6600 on air. Also, reflash with a functional BIOS if you are concerned about a bad flash, better to be safe than be fighting an impossible problem.
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