OC question/problem

[Unbornchicken]

I have dual celery 366's currently running at 458's and i would like to get these to 550.

I am running a BP6, two celeron (OEM, MALAY chips) 366's, V3 3000, aureal vortex2, intel etherexpress pro 10/100, and a 2940UW...

here is the problem...

I did run 224MB of SDRAM (one stick of normal SD 32MB, one stick of Atlas precision 64MB, and one stick of PC100 128MB).

when i tried overclocking with this setup, i could not get past the 86*5.5=458 point (even with the 66MHz ram in there). so, when that didnt work, i decided that i would just remove the excess 96MB and go with the PC100 stick to OC. I did this and found that i STILL couldnt go past that point (couldnt get to 100*5.5 without it locking up within the first few minutes of booting, or while booting itself).

i would think that running at 83MHz bus would be more difficult then the 100 since 83 is overclocking EVERYTHING and the 100 would clock the AGP and PCI busses back to normal.

with it at 83MHz, it never gets above about 40C.

I am using OEM (stock) HS/fan for the cpus and have plenty of case cooling.

ANY helpfull information on HOW i can get this thing up to dual 550's would be great

PS, i am running win2k PRO, have a phatty scsi drive, and two cdroms (one is a burner).. all scsi

 

[Kris]

Dont worry about 100, just do what you have to to hit 92, that's where the 1/3pci kicks in as I recall, and that is about 500mhz, which is ok in dual, no? First jerk everything, except what is necessary, ie one hdd, and see what happens, if you cannot identify an individual component, then you need better cooling, with thermal compound, etc. And, here is a case where lapping might help. The .25u chips were never flat, and you just need a few more mhz really. Anyway good luck. And good idea on the ram, try one stick at a time.

 

[Unbornchicken]

Well, that is another funny thing.

When i try to go to one of those 'odd' speeds (91, 87, etc), it gives me LOWER numbers for the reported speed than it should.

for instance, when i try 92*5.5 (mult locked at 5.5), it reads a speed of 425MHz (not the suppoesed 506 that it should).

when i try for 100, it will read the correct value (550) but will randomly lock up well before getting all the way into the OS (usually, sometimes it will lock immediately after getting all the way in).

i can boot and run just fine with some of the higher bus speeds, but every tester that ive tried has indicated a slower clock speed than i should have. 🙁

BTW: im not really sure that lapping my CPUs is really a project that i want to take on at this time.. although making it water cooled would be nice too.. 😛

thanks