Hi, [again, sorry for the long delay, but I'm sure you won't like to hear all the reasons...] >> It definitely matters at the moment. I put in some more RAM into my >> O2 last year and it failed to boot. When I changed the modules so the >> bigger modules were first, it worked again. >> > From what I remember this is a classic thing with SGI architecture. I >think there are even recommendations to do this with the larger memory >modules first in order. This was also true of the larger Origin 200 and >2000 series of machines.
Alright, I finally found the time to dig a bit deeper. My Memory is: 2x128 MB SGI labeled (DIMM sockets 1 & 2) 2x32 MB third party (DIMM sockets 3 & 4) 2x32 MB third party (DIMM sockets 5 & 6) 2x32 MB SGI labeled (DIMM sockets 7 & 8) If I take out the SGI labeled 2x32 MB, the box boots: ... Linux version 2.6.18-4-r5k-ip32 (Debian 2.6.18.dfsg.1-11) ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Wed Feb 21 16:43:49 UTC 2007 ARCH: SGI-IP32 PROMLIB: ARC firmware Version 1 Revision 10 CRIME id a rev 1 at 0x0000000014000000 CRIME MC: bank 0 base 0x0000000000000000 size 128MiB CRIME MC: bank 1 base 0x0000000008000000 size 128MiB CRIME MC: bank 2 base 0x0000000050000000 size 32MiB CRIME MC: bank 3 base 0x0000000052000000 size 32MiB CRIME MC: bank 4 base 0x0000000054000000 size 32MiB CRIME MC: bank 5 base 0x0000000056000000 size 32MiB CPU revision is: 00002321 FPU revision is: 00002310 Determined physical RAM map: memory: 0000000010000000 @ 0000000000000000 (usable) memory: 0000000008000000 @ 0000000050000000 (usable) Initial ramdisk at: 0xffffffff804c0000 (2909061 bytes) Built 1 zonelists. Total pages: 360448 ... If I put them back in, booting fails, regardless if I put them in sockets 7 & 8 or 3 & 4. As they look a bit different, my suspicion is that the internal organisation of the SGI 32 MB modules differs from the organisation of the third party modules. But that's just a guess, HTH, Uli -- Dipl. Inf. Ulrich Teichert|e-mail: [EMAIL PROTECTED] | Listening to: Stormweg 24 |Der Weisse Raum (Der Dritte Mann), Caligari 24539 Neumuenster, Germany|(Opération S), Looking For Action (Ghetto Ways) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
