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View Full Version : frustrated overclock seeking higher speeds, inquire within....

JBELL
03-15-2004, 12:41 PM
ok guys here is what I have:

ASUS P4C800 Deluxe
2.8 P4c
1GB Corsair PC4400 DC kit<--tested to 280 by Liquid3D
nVidia 5700 Ultra
80GB 8mb cache HDD
slk-900 heat sink


I am having trouble overclocking this... 250 won't go and curious what you guys with similar gear are clocking at, so far the 20% AI overclock is as far as I can get it seems.
Jupiler
03-15-2004, 01:05 PM
Did you try to oc the cpu manually, instead of using the AI feature?
What are your other settings? VCore, memory timings etc...

My 2.8 M0 runs nicely at 3.7Ghz, 1.60V, P4C800-E (1015 bios), 4*256Mb Infineon PC2700.
Techmasta
03-15-2004, 01:17 PM
What vcore are you using?
Soulburner
03-15-2004, 01:20 PM
Originally posted by Techmasta
What vcore are you using?
If you do the auto setting you don't have access to adjustments like that.
skate2snow
03-15-2004, 01:47 PM
If youre at 250FSB youre lucky compared to my at 3.2.:(.

anyway, did you OC manually? if yes, which Vc?
enzoR
03-15-2004, 02:05 PM
your using the AI overclock? no way dont use that crap do it yourself manually.
JBELL
03-15-2004, 02:37 PM
AI allows me 20% no prob

but under manual I try 1.6vcor and 2.85 on vdim
i know the ram can take it and i have a 651enermax feeding it all...

i am sure my voltages are what are stopping me but not 100% sure.
JBELL
03-15-2004, 02:37 PM
Originally posted by skate2snow
If youre at 250FSB youre lucky compared to my at 3.2.:(.

anyway, did you OC manually? if yes, which Vc? I have yet to hit 250
Jupiler
03-15-2004, 02:41 PM
Might be that you have a crap cpu. Not all of them will reach 3.5Ghz. Some will even go higher, others won't even do 3.3Ghz.

At 250FSB, does it boot at all ? Or do you get a BSOD while booting?
JBELL
03-15-2004, 02:51 PM
Originally posted by Jupiler
Might be that you have a crap cpu. Not all of them will reach 3.5Ghz. Some will even go higher, others won't even do 3.3Ghz.

At 250FSB, does it boot at all ? Or do you get a BSOD while booting?

it does boot but typically fails POST
enzoR
03-15-2004, 03:06 PM
does it scale higher with more vcore?
Jupiler
03-15-2004, 03:07 PM
Sure it's not the memory? The P4C is a little picky with some modules, compared to the IC7.
What are your memory timings?
Try increasing VCore a little more, although VCore drops, once you pass 1.625V. Might be, that you'll need 1.725V, to get the same voltage as with 1.60V.
JBELL
03-15-2004, 03:19 PM
Originally posted by Jupiler
Sure it's not the memory? The P4C is a little picky with some modules, compared to the IC7.
What are your memory timings?
Try increasing VCore a little more, although VCore drops, once you pass 1.625V. Might be, that you'll need 1.725V, to get the same voltage as with 1.60V.

corsair pc4400

tested on p4c800 at 280 in many reviews and the p4c800 is what corsair tests all their ram on...
Jupiler
03-15-2004, 03:28 PM
OK then. Had to ask it anyway.
Only thing I can think of is that your cpu won't pass 250FSB.
As always, it's a matter of luck.
Malves
03-15-2004, 03:34 PM
P4C800 what revision?
JBELL
03-15-2004, 04:10 PM
Originally posted by Malves
P4C800 what revision?
1.0 or 1.1 ... i flashed the bios to the newest and will post accurately once i get home.
Malves
03-15-2004, 04:17 PM
Know a guy that has problems o/cing with rev. 1.0 (1.1?) P4C800. It could be your mobo or CPU. Anyway in trying the CPU on another system?
Goyo
03-15-2004, 04:25 PM
What about the VDimm voltage? If its Auto will be in 2.55V, try 2.7V Manually.
JBELL
03-15-2004, 04:27 PM
Originally posted by Goyo
What about the VDimm voltage? If its Auto will be in 2.55V, try 2.7V Manually. I went manual up to 2.85
JBELL
03-15-2004, 06:31 PM
my board is revision 2.0
Goyo
03-15-2004, 07:27 PM
Shoot!... :( It seems that you have reached the limit of the CPU.

Will the Droop Mod help?

PS:
Have you disabled the USB Legacy Support?
neyoung
03-15-2004, 07:50 PM
what does disabeling the USB legacy Support do besides the obvious?
sinn
03-15-2004, 09:16 PM
i would try testing the chip in a different board or test a different chip in that board, im pretty sure that is whats holding you back, its clearly not your ram
st0nedpenguin
03-16-2004, 10:38 AM
BIOS 1011 was the best for me so far, I haven't had much luck with any more recent ones, also, may seem like a dumb question, but have you locked the AGP/PCI to 66/33?

Also, have you tried cranking up the AGP voltage? I can't get anywhere without bumping it up a notch or two, apparently it's related to the NB voltage on this board.
nailbomb
03-16-2004, 10:12 PM
I concur with st0ned, try upping vAGP.

I just got a M0 2.8 and it easily does 14x250 at stock voltage. My first piece of good luck in a long time ;)

Curious: how high can you get, on just stock voltage, clocking manually?

my board is revision 2.0

I seem to recall reading a thread over at Abxzone where bigtoe said that the Rev 2.0 boards don't clock as well as the older ones. He didn't go into any detail thou. Perhaps you could ask him about that.