PIII 800EB driving me mad!

[Twissman]

I have a prob with overclocking my 800EB. It doesn't seem to want to go about 850. I have it running at 850 right now with a CPU temp of 28 degrees and a core voltage of 1.65. I have two fans running at the mo and my MB is an ABit AX6BC Pro. I am running with a PCI Voodoo 3 2000, a NIC and an SB Live! with 256MB DIMM.
Can anyone help me out with this?

Twiss

[[OC]_SR20DE]

I think you'd need more than 1.65Vcore to get past 850. I owned 800EB before.. and I was able to run it stably with all games at 870mhz. and 900+mhz with only windows apps stable. Try bumping the Vcore a few notches i.e.. 1.75V and do you have some nice air cooling? .. if not, then take your case sides open. Even though your idle temp you mentioned at 850 is low, you still need cool temp as possible. it gets very sensitive with the temp as you overclock it. and third thing, do you have good overclocking RAM with you?..

[Twissman]

My case has some blowholes and a few cooling fans in it, pretty reasonable... How do you bump the Vcore up? Is it in the BIOS or do you need a tweak prog to shift it? About the RAM, I dunno about overclocking with it, it's made by Hyundai and that's about all I know...

[Lancelot]

Yes, try upping the voltage to 1.75. I believe the 800EB needs a default Voltage of 1.7, so you are undervolting and trying to overclock?!

[ThePunkGeek]

well its hard to overclock eb high
my 533eb is @ 620 and is pretty much maxed out inless i went extreme cooling then i might be able to do 674

[Rick]

I have a 800EB.I raised the volts to 1.9 and burned it in for a few days then I was able to get it to 900.anything higher crashes.I use crucial ram,not the best but I have the FSB at 149 and it is stable now.I have run games like unreal tournamet and Quake 3 just fine and ran a series of stability test and they all check out fine.None of this was possible till I raised the core volt to 1.90.I was told to stay under 1.95 and as long as the temps are fine it should be ok.My temp under load max at 38C and are 26 at idle using an alpha PEP66 and a dab of Arctic silver.I hope this helps.

[Phil]

I would say that with up to 1.9v and a resonable cooler you should manage 900 (6x150) as long as all your components can handle a 150mhz fsb, you list a lot of pci devices which may be a problem, try getting up to that speed with just the vid card then install them one by one to see if any bring the stability down, also ram that will handle a 150mhz bus is either luck or expensive, and if it isn't really high quality stuff you will need to drop down to cas3, if your board has the option for host-pciclk for ram speed then try that

[Door Knob]

1.75 is the correct voltage for this chip. I have no problem running this volatage at 160 fsb. If I boost it to 1.9 I can run over a gig no problem. I have had it up to 1.1 gig but it really would need a pelt and water cooling to run that stable. I should have some cash to get a pelt in a week and the water kit this summer (poor college kid). Just so you know that this chip does pack some punch.

[OpenFriday]

im running my 800EB @900 @1.65 no problems. Only hit 840 (6x140) at first but a long burn in fixed that, though i got constant visits from Mr.BSOD as my temp was 54C, got my new Vantec with "the delta" and no more BSOD. Im running 6x150 no probs.

[Phil]

I have never seen the point in pelt+water cooling intel chips, a good peltier and water cooling setup is going to cost about $200-250 maybe more, and for about than this you could get an AXIA plus socket A board and run at 1.4ghz, I suppose just buying a mid range pelt and cooling that with a heatsink isn't as bad but this doesn't usually offer much better results than a good heatsink and fan (the sort you are going to be using on the pelt :) )