Date: Tue, 2 Jul 1996 22:24:20 -0400 From: Tommy Johnson <tjohnson@csgrad.cs.vt.edu> To: delerium@eagle.ais.net, walter@biostat.sph.unc.edu Cc: hackers@FreeBSD.ORG Subject: Re: SIG's 11 and 6... Message-ID: <9607030224.AA23823@csgrad.cs.vt.edu>
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delerium@ais.net said: >[...] >> HEAT! My pentium 120 was having the above problems. Switching out memory >> would solve them for a day or two, but the problems would then start to [...] > >I've got a Pentium 133 here running 2.2-960612-SNAP, and it too was >experiencing more or less random Segmentation Faults, Bus Errors, >and/or Illegal Instructions. This behavior persisted despite swapping >SIMMs several times. I finally resolved this with a strange fix: >though the CPU can run at 133MHz, I clocked it down to 120MHz via jumper >settings on the motherboard. I haven't had any problems with it since. I have a 586-100 (Well, OK so it says pentium...). When I first got it, I was doing a burn in test, compiling about 6 kernels in parallel. I too kept getting SIG 11s. So I doublechecked all the jumpers and noticed that it was jumpered for 133MHz. When I set it to 100 MHz, the strange signals stopped, and the machine has been up ever since (25 days uptime sofar). For the record: Tyan S1462 tempest II dual 586 motherboard (only one 100MHz CPU right now), 512K L2 cache, Adaptec 2940, SMC DC21041 10Mb ethernet, 16MB ram, hercules video board, running FreeBSD 2.1.0-Release. The CPU is: Origin = "GenuineIntel" Id = 0x526 Stepping=6 >I wonder if my problem is actually heat-related as well? Reducing the >CPU clock may simply cause the chip to run cooler. Anyone else have >similar troubles, or other ideas? My case has two fans, I don't think I had any heat problems. -Tom "this isn't happening... this isn't happening..." a grey alien, X Files tjohnson@csgrad.cs.vt.edu "My other computer ALSO runs unix." -me <*> http://csgrad.cs.vt.edu/~tjohnson/ Message and signature (c) 1996 Tommy O. Johnson, all rights reserved
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