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Issue: could it be cooling, power, RAM, mobo or what?

Last response: in Overclocking
November 25, 2006 8:34:47 AM

This is where I'm at right now (this is the system I posted in the screwups thread as having a "missing" 512 DIMM after a gravity-assisted crash btw).

ASRock P4M800, Celeron D 330 2.66, 2x 512 DDR400 (2-2-2-5 I think).
CPU @ 2.94GHz, FSB @ 147MHz, RAM @ God knows what.
Cooling is provided by a ducted HSF and temps never go above 63 deg. celsius. Oh yeah, it crashes out and defaults at 148MHz...

I would like to make this system break 3GHz+ (150MHz+) without any changes to the hardware itself. Where it gets complex: the BIOS only allows me to muck about with the RAM timings (and is very obscure in what it calls them), RAM freq. and the CPU FSB itself - no voltages, nothing interesting. sigh. I've also got an odd RAM issue - it tells me I have the full 1GB, but only 'sees' one of the 2 512 DIMMs I've got in there. I'm thus hesitant to bugger about with the RAM more than necessary.

What I want to know - have I got it as far as it can go, am I missing something, can I get it further, or should I cut my losses and save my OCing for the 925 I'm looking at?

Thanks in advance...
November 25, 2006 12:33:06 PM

What hd are you using sata, ide, sata2, this means lots second is the chipset 8237 A or R You will most likely have to get a sata2 drive or a sata2 controller with ncq and tcq capibilities
November 27, 2006 4:28:15 AM

SATA1, 2x WD 80GB, VIA 8237R.

what are the diffs between the A and R revisions?

Update: tweaking over the weekend got me up to 149MHz FSB stable. Temps are starting to get a little overboard though. (2.98GHz @ 63 deg. idle)

Which 9xx series Pentium is a decent OCer?
Related resources
November 28, 2006 6:25:58 AM

sry for the delay the difference is the "'A" is sata2 compatiable where as the r is not and wont work with extreme ocing
November 28, 2006 7:01:52 AM



found another few blockages. buses cannot be locked down, no voltage controls, among other things.

using a different board I can get the little sod up to 3.32 (166x20), not feasible due to it being someone else's...
November 28, 2006 7:44:20 AM

p4 820,840,925,945

or better yet get a better mobo and see where it can then take you
November 28, 2006 9:16:33 AM

yeah, OCing on that ____ ASRock board is akin to raping a porcupine without shaving it first. Actually, less pleasant. Problem is finding a better board (socket 478, aargh).

What the hell. I'm already 1/3 through designing a WC system for the thing, so may as well.

Who knows - right mobo and I could probably do 4GHz.
November 28, 2006 10:06:50 AM

thats the term I could not remember locked and unlocked busses thanks
the one you need to find are 8phase type
November 28, 2006 11:21:14 AM

did the 478 mobos come out with 8-phase?
November 28, 2006 12:56:12 PM

I only remember a 6
November 28, 2006 1:59:19 PM

Damn! I vill kill everyvon in ze vorld!