tblader spake the following on 3/24/2007 6:46 AM: > Feizhou wrote: > <snip> > >>> Right now, it's been running for about 40 minutes (the Java install >>> loop mentioned previously) with the dram clocked down to ddr-533. >>> All four sticks are in and I ssh'd in and started another java install >>> loop over the wire just to aggravate things. If this continues to >>> run for a few hours I'll call it good enough. >> >> So all four sticks, clocked down and kernel parameters = A-OKAY >> (assuming it is stable) >> > > Almost. Much to my dismay, the 4 stick testing went well but the > BIOS screens occasionally hung during reboot through the course > of the day. I finally just pulled the 4th stick and went home. > > I've modified the rc3.d/S99local* script to just reboot every 10 > minutes and compile a kernel and modules in between. I thought > I'd heat things up a bit piping urandom into /dev/null as well. > > I've got other fx-62 boxes running the same mainboard with all 4 > ram slots full, but those are Corsair ram @1G each - the ram timings > are different as well; 5-5-5-12 for the Corsair and 6-6-6-18 > for the GSkill. Maybe the GSkill ram just isn't up to the task > running Dual channel. I have the weekend to play with it so maybe > I'll try two sticks in Dual Channel for a while and see what happens. > > I'll post kernel compile times between the 3 sticks in single channel > and 2 in dual channel :) > I bet the bios of the board is either not honoring the SPD settings of the memory, or the memory just isn't a good match for the board. I have had this problem before, and now I usually only buy memory that is on the recommended list of the manufacturer, especially on critical systems. It just isn't worth the extra trouble to maybe save a few bucks. Your time tracking down the problem probably has already gone over the difference in memory cost. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!! _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos