On Fri, 2006-11-24 at 02:19 +0000, Timothy Murphy wrote: > Philip Prindeville wrote: > > >>Thanks for the suggestion - > >>I assumed the memory was OK since I have never had problems > >>with Windows XP or i386 Fedora. > >>But I've downloaded the memtest86+ rpm, > >>and will run this tonight. > > I ran memtest86 from the first CD, as recommended, > but it only got 50% of the way through > (during test 4 or 5, I think) > before crashing. > The crash occurred at different points on repetition. > so I don't think it was due to any memory fault. > > >>>You also might try reducing the speed of the memory and see if that has > >>>any affect. > >> > >>How do I reduce the memory speed? > >>Do you mean reduce the CPU speed with something like cpufreq? > > > > No. Run with additional wait-states. Like instead of 2/1, run with 3/2 > > or 4/2... > > I didn't find any such option in the BIOS setup. > But I'll take another look. > > > Do you have "lm_sensors" installed and configured? Try that. > > I have lm-sensors installed, and have run detect-lmsensors ; > after this the command "sudo sensors" yields > ------------------------------------- > [tim@blanche ~]$ sudo sensors > w83697hf-isa-0290 > Adapter: ISA adapter > VCore: +1.50 V (min = +1.71 V, max = +1.89 V) ALARM > +3.3V: +3.34 V (min = +3.14 V, max = +3.47 V) > +5V: +5.03 V (min = +4.76 V, max = +5.24 V) > +12V: +11.07 V (min = +10.82 V, max = +13.19 V) > -12V: +0.14 V (min = -13.18 V, max = -10.80 V) ALARM > -5V: +5.10 V (min = -5.25 V, max = -4.75 V) ALARM > V5SB: +5.64 V (min = +4.76 V, max = +5.24 V) ALARM > VBat: +0.06 V (min = +2.40 V, max = +3.60 V) ALARM > fan1: 0 RPM (min = 44 RPM, div = 128) ALARM > fan2: 1520 RPM (min = 1506 RPM, div = 4) > temp1: +24°C (high = +53°C, hyst = -7°C) sensor = thermistor > temp2: +52.0°C (high = +80°C, hyst = +75°C) sensor = thermistor > alarms: > beep_enable: > Sound alarm enabled > ------------------------------------- > > I don't really understand this. > Are there really 2 fans, one of which seems always to be off? > I guess I must read the "lm-sensors" documentation ... > > > -- > Timothy Murphy > e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie > tel: +353-86-2336090, +353-1-2842366 > s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland > Sounds like you may have a memory timing problem or the voltage for your memory hasn't been detected properly by the BIOS.. I had similar problems, where running memtest86+ V1.65, it would hard lock during the test (even just a couple of minutes through the test.). Getting the system to respond to BIOS setup, I managed to manually setup the memory timings, and voltage, and the system ran through memtest86+ fine.. (Two hours and not one error or lockup) It's worth checking out. I have no idea what mother board your system has, so I only can take a guess what the problem might be.. Wolf