Personally, I would get rid of that board and get yourself a Tyan Tiger MPX (2466N-4M) Board. The specs are the same if not better (More PCI slots and other stuff). The reason I say that is that I have two of the same boards, I've tried all the same stuff as you have mentioned to no avail. I even had one of the boards send back to MSI, and they said it was fine. (Of course they would have only tested it with M$. And I already knew that it worked ok with that crap). So I decided to get the Tyan Tiger MPX (I have (3) now all running RH9 without a problem). And seeing that the board specs were pretty much the same as the MSI one, it was also cheaper. So I suggest you do yourself a favour and either return it (If you are still able to) and get yourself on of the Tyan boards. As it will save you a lot of headaches, in trying to sort out what is causing the system hangs. From what I have gone though with the MSI board, I seem pretty sure that there must be some type of design fault with it somewhere. As the board is VERY unstable. Oh, and I would also like to mention that I have tried RH7.3, 8.0 and 9 on that MSI board, and the same problems persist with all the mentioned RH releases. I just think this board has problems with Linux in general. The BIOS updates didn't help at all. (Although they now have a new Version, which too late, now that I'm running the Tyan boards now.) The Tyan board has been running great now for over a year. Nice going Tyan!! 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 ######################################################################