DIXONS@SMITHKLINE.COM (DIXONS) (01/26/89)
Steve- I just tried your two single precsion test programs on our 120GTX and found no problems. The answers are correct every time. I would guess that you have a bad floating point chip in one of the processors. This would explain why you sometimes get the correct answer and sometimes don't (as you switch from processor to processor). It may also be consistent with the error rate seeming to be a function of system load (since this could affect how often you switched). I have a friend who had a bad FP chip on a 70GT which caused fairly subtle problems and took a while to detect. Good luck. Scott Dixon (dixons@smithkline.com)