Cyrix MII 333

[subs4me]

Help. I am experiencing intermittent warm boots on a machine I reccomended for a friend. Price was the driving force so I went with a Cyrix MII 333. Speed is great but re-booting often is not an option. I am confused by the conflicting posts I have seen on other BB's. Help. Is it heat, do I need to clock down, or is likely that peripherals are suspect.

[Susan]

What are the components in the system? You mentioned that it is a heat problem - from what hardware, the CPU? And what speed is it running at?

[ANTONIO E GUERRA]

It could be a heating or overheating problem caused by one of the following:
(1) wrong configuration. Go to the manual and check the jumper settings for that particular chip;
(2) power supply malfunction. If it is the case, you need to replace the power supply;
(3) memory mismatch. If you are using 66mhz in a 100mhz motherboard with a 100mhz jumper settings, it can cause lock ups. If you have a diagnostic software (Norton's or Checkit) run the memory diagnostic.
(4) Last but not least, check if there is a fragmentation in your hard drive. Run scandisk and defrag.
Cyrix is a good chip but it requieres a lot of care in terms of heatihg. Make sure that you are using the right fan.

[magk9]

spontaneous reboots?? I had the same thing with a Cyrix 333....tried different ram, extra fans, cover off, everything...finally rejumpered for the PR 300 setting (75x3..225mhz) and it's been fine since...it just wouldn't run the 83mhz...I tried it on a different board too...it was the chip.

[Dash800]

Lots of things freak out at 83mhz bus, thats why i never bought another cyrix after my PR233 75x2.5, because they use un-commong bus speeds which might fry your sound card or screw your system. The chip probably works fine at 83, but the video card and MB might not.

[CMonster]

I concur that 83mhz bus speed is hard to run stable on many systems.

A while back I had a problem with reboots and it turned out that I had my NIC in the PCI slot next to the AGP slot. Placing any card in the PCI slot next to the AGP is just not a good idea. Moved the NIC down one slot and no more reboots.