Forum Home
Press F1
 
Thread ID: 17264 2002-04-01 10:12:00 Hardware challenge Guest (0) Press F1
Post ID Timestamp Content User
41279 2002-04-01 10:12:00 Anyone know what would cause a dual PPRO 200 to run like a 486?

It's an old machine that I've just recently taken out of retirement and replaced parts that I'd scavenged off it. It was running fine (apart from random freezes which I was in the process of pinning down) when it started taking ages to boot into NT.

At the time I was running memtest and swapping drives and cables around. I was booting up to a floppy so I didn't notice the slowdown until later.

Interestingly, memtest reports 1st and 2nd level cache memory speeds of 40Mb/sec now, where I could have sworn it was in the hundreds before. Memtest only uses 1 cpu, I've swapped them over but no change.

I don't know whether it's meaningful but the old Norton dos benchmark calls it a 486 @ 12mhz!

I could well have damaged something with all my fiddling around but it seems surprising that it runs fine, just real slow.

Any help would be appreciated

DC
Guest (0)
41280 2002-04-01 19:28:00 I'm not familiar with dual processors, but ordinarily I would look at a couple of things.

It could be running dos drivers---you might need a specific motherboard driver.

A jumper could be set wrong on the motherboard--- throttling the cache, or cpu speed.

A wrong setting in the bios---might pay to set everything to default, and start again.

A ram problem---make sure there is enough, and it is all recognized.

Just the basics really, hope it's some help.
Guest (0)
41281 2002-04-02 03:55:00 Thanks K O. I'll give your suggestions a try.

David.
Guest (0)
41282 2002-04-02 06:20:00 Found it. 'Deturbo mode' enabled, somehow, in bios.

Thanks again.

Now all I need is some PPRO CPU fans.... Anybody?
Guest (0)
1