Messages in this thread |  | | From | Hamish Moffatt <> | Subject | problems with UMC U5SX processor? | Date | Sat, 30 Nov 1996 23:18:08 +1100 (EST) |
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I just upgraded one of my machines to a UMC U5SX, which is a 486SX clone, running at 33MHz. (Not much of an upgrade you say? Well, it was a from a 386-40. :-)
Problem though;
[11:12pm] hamish@silly:/proc> uptime 11:15pm up 1 day, 20 min, 3 users, load average: 0.08, 0.07, 0.07 [11:15pm] hamish@silly:/proc> cat interrupts 0: 8781321 timer 1: 3744 keyboard 2: 0 cascade 5: 662609 + serial 8: 0 + rtc 10: 133304 NE2000 13: 181742964 math error 14: 253050 + ide0
The math error count is a bit worrying, especially since this thing doesn't have a co-pro. I'm not convinced it's actually making a difference, but I would like to hear about it if anyone has any suggestions as to what might cause it.
[11:18pm] hamish@silly:/proc> cat cpuinfo processor : 0 cpu : 486 model : SX vendor_id : UMC UMC UMC stepping : 3 fdiv_bug : no hlt_bug : no fpu : no fpu_exception : no cpuid : yes wp : yes flags : bogomips : 19.61
If necessary, I will change the CPU to an Intel DX-33. However the UMC (despite lack of co-pro) is approximately 30% faster than the Intel chip.
Thanks,
Hamish ps. please cc: me a copy of your reply.
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