EP-3PTA -- minor problem...

[causticVapor]

A good board, just a little problem.

Have a Celeron Tualatin 1300 running at 122*13.

When the bus speed is beyond 116MHz, the board will sometimes not reboot; it will only boot. In other words, rebooting gives a black screen and some hi-lo beeping, as if the processor cannot be detected or something, while powering down and giving it a cold boot always works.

I've looped 3dmark on it at these speeds for days at a time with no problems, and loosened the screws on the motherboard as well, all to no avail. I only have a linksys NIC and an SB audigy on the PCI bus. (Tested at 38-41MHz) The graphics card is a GF2 MX 200.

Should I worry? :r

[eFrisky]

Dodgy thing... to run outside the PCI specs :)
It might well be the SB soundcard - it simply doesn't like the PCI bus to be at such a high speed (to be fair it wasn't even designed for it hehe). A lot of duallie users have found them to be "problematic" for want of a more diplomatic description!

I have experienced this boot/reboot situation with a much older PC (not O/Ced though) - it was the PSU. The system wouldn't run at full speed until i warm rebooted it; from a cold stat it was slow.

Hmmm I have finally got a NIC to work in Win98; all I had to do was install the video drivers (fresh install of OS). Problems never cease to amaze me :D

[causticVapor]

The strange thing is, it's otherwise rock solid. Maybe I have to elevate VIO. And there could be an issue with only 4.91v on the +5v rail.

[eFrisky]

My system (dual XP, Tyan TigerMP) seemed to be quite stable while I had to FSB overclocked (using CPUFSB FSB@140) for most stuff, even running SETI for days it was fine. But CounterStrike (among other sound intensive apps) would cause the system to simply lockup, hard! So I don't OC now; maybe with a new system :)
I tried my old SB Live! and a Terratec card, which I still use now. Same results.

[BipolarBill]

I'm on an Asus TUSL2-C with a Celeron 1.4@1.623 right now. In my BIOS setup, I can choose 3 ratios:

100/100/33
133/100/33
133/133/33

I don't know what you have in your BIOS, but that second setting allows me to turn the bugger up to 133MHz without OCing the memory or the PCI bus.

See what you have and try different ratios. Honestly, anything over 112MHz is a gamble in my book.

[causticVapor]

Yep, I tried that. Unfortunately it's a 1300 and not an 1100, so running it with a 133 FSB would be hard -- 1725MHz is not achieved everyday on a tualatin. Even with the vcore cranked up to 1.7, the highest it can do is 1.58. (Probably the PCI bus)

I've tried running the FSB at 133 with the memory running at 66, 100, and 133.... all to no avail. IF I could do it asynch with an HCLK+33 setting, that would be nice.. but since it's running on the 815 chipset, that's not a possibility.

I smell vmod time! :r