My 2100+ AIUHB Woes

[culex]

Bought a Tbred-B from Newegg this week and I've been tinkering with it tonight.

I'm running it on an old Epox 8K7A board w/ Crucial PC2100's. Motherboard BIOS has been updated to the latest revision.

The problem is, that it'll have trouble posting at various FSBs (as opposed to not POSTing at all). At default 133x13, it'll post flawlessly... up until 145x13. After that, it starts to not post. I can press the reset button on the case and sometimes it'll post and sometimes it won't. It's basically a luck shot after 145. I've had it post all the way up to 166x13 at default core. Raising the Vcore didn't help in posting any better.

So my question is, is it the motherboard that's limiting? I've had it run WinXP at 166x13 and it ran stable for the whole hour I was running it. When it posts, the motherboard doesn't really recognize the CPU (Reads it as Unknown CPU). The latest revision BIOS states that it supports XP processors and I'm sure it does as it posts fine on default settings. But why am I having a luck-and-go draw on higher FSBs as opposed to not posting at all?

 

[Bartman39]

The problem...

Epox 8K7A board w/ Crucial PC2100's

Invest in an 8RDA+ and run the memory at 266fsb (or as high as possible) and save for PC3200 or better...

 

[culex]

I'd figure it'd be the board...

Thanks

 

[chizow]

Originally posted by: culex
I'd figure it'd be the board...

Thanks

Yep, no PCI/AGP lock = crapshoot.

Chiz

 

[Duvie]

Those older boards even beside the fact they have no pci/agp clock can't do those fsbs that high reliably....look at the time those boards were out.....145 with a 1/4 divder is not that bad at 36.25mhz...that is relatively low as I did 40mhz pci for a long d\time on my sis mobo...It is the limitation of the board more so then the pci/agp lock IMO....still could be but I think that pci is relatively low unless you have a tempermental NIC or sound card...