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Old 2004-08-23, 00:34   #1
Doorbasher
 
Aug 2004

C16 Posts
Default Really slow machines?

Hey evryone.

I have a few spare computers at home, and I like the idea of them doing something useful. Problem is, they might be too elderly to make a contribution, so I decided to check here first.

The first rig is a Pentium 60. I know that an 80586-class machine is powerful enough to do some factoring work, but there's a catch. I tested it, and it has the infamous bug in the floating-point divide instruction. (The FDIV bug). Now I don't want to turn in incorrect results. Is there a way to force the program to use an integer-based routine, or otherwise avoid the floating-point divide?

Next up is an 80486DX, running at 20 MHz. This one might have a problem with memory, it only has 5 MB at it's disposal. Enough power?

The final one, a 25 MHz 80486SX. No math coproscessor. This one runs on 12 MB I think, but I'm not sure how lack of an FPU will affect things.

I suppose my 8 MHz 80286 is beyond hope.

Anyhow, is it woth keeping these old rigs in service?
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