Just adding some more details as to what I forgot to put into the other reply post. Here is the specs of the system I WAS, trying to put together using the MSI K7D Master L board. 2 x Athlon MP 2000+ CPU's 2 x 512MB's of Registered DDR RAM - Totalling 1GB 1 x MSI GF4 Ti4600-VTD Graphics Card (128MB RAM) 1 x Creative SB Audigy Sound Card 1 x 400 Watt PSU The exact configuration above works on the Tyan Board. The only change being the mother board, and with a small change in that I updated the CPU's to MP 2600+'s. (And this is the Tyan system that I'm writing you this reply message on.) Wolf -----Original Message----- From: Bjorn Lund [mailto:bl@xxxxxxxxxxxx] Sent: Tuesday, 24 June 2003 9:28 PM To: shrike-list@xxxxxxxxxx Subject: Freeze of RH9 on Dual Athlon in SMP mode Hi! I have a dual Athlon MP 2400+ machine, M7D Master-L motherboard, 2GB of memory, 2x WD Caviar 120 GB drives and two good Zalman heat sinks/fans. I can however not get Linux to run properly in SMP mode. In UP (one processor) the machine works fine but in SMP it frezzes after a while, faster if i run larger applications on it. I'm talking 5 to 30 minutes before it hangs. I have tried all RH9 kernels, the latest RawHide kernel, the 2.4.21 kernel and 2.5.73. All work in UP but hang in SMP. I have run memtest86 3.0 for 61 hours without errors (only got through test 7 though), I have tried kernel options apm=off, noapic, mem=nopentium in different kombinations but no luck. I have the lates Award BIOS for my mobo and have tried with MPS 1.1 and 1.4, I have turned ACPI off in the BIOS, I have tried with a different video card, all to no avail. Does anybody have any suggestion for what to do next (return the mobo...?), or does anyone have the same setup as I and run it successfully? I have had this issue up for discussion at 2cpu.com http://forums.2cpu.com/showthread.php?s=&threadid=38520 with a lot of good advice but ufortunately not been able to solve the problem. Cheers, Björn ###################################################################### Attention: This e-mail message is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Any views or opinions presented are solely those of the author. This e-mail has been scanned and cleared by MailMarshal www.marshalsoftware.com ######################################################################