Computer Problems? Computing.Net has over 1,000,000 posts about all things technology related! Over 90% answered within 24 hours! Click here to start participating now! Also, be sure to check out the New User Guide.
Ubuntu won't recognize quad cores?!
Name: gpreachuk1 Date: May 4, 2008 at 21:57:17 Pacific OS: Ubuntu 8.04 CPU/Ram: 3gig Product: Acer M5100
Comment:
Help! I've been all over the frickin web on this one... New Acer M5100-B5302A AMD Phenom 9500 Quad Core cpu Loaded the latest and greatest Ubuntu with the generic kernel -- SMP by default garry@wiggum:~$ uname -a Linux wiggum 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 GNU/Linux
....but the system monitor only displays stats for 1 cpu. The system seems to only recognize a of 4 cores. See output of /cat/proc/cpuinfo below
garry@wiggum:~$ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : AMD Phenom(tm) 9500 Quad-Core Processor stepping : 2 cpu MHz : 2194.527 cache size : 512 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc pni cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs ts ttp tm stc 100mhzsteps hwpstate bogomips : 4392.39 clflush size : 64
Performance so far indicates that definately there is only a single core at work here.
Just is case could it be that the monitor is set to report cpu's and not cores. I don't suspect that but see just in case. As you say the performance is bad.
See if a knoppix disk can report it correctly.
Is is 64 or 32 bit?
Does the bios support exactly that cpu? I assume you bought it together. Is there any bios select for core.
"Best Practices", Event viewer, host file, perfmon, are in my top 10
0
Response Number 2
Name: gpreachuk1 Date: May 6, 2008 at 07:40:06 Pacific
Reply:
64 bit eh? I see now that it is indeed a 64 bit chip. I'll install that version and try it.
0
Response Number 3
Name: gpreachuk1 Date: May 7, 2008 at 07:21:34 Pacific
Summary: i just installed mandrake linux 7.2 onto a 4gig western digital hard drive 10 minutes ago. everything was going fine, until i restarted as instructed, and the bios doesn't recognize my hd anymore?!?!?...
Summary: Hi All, I recently installed Linux 2.4.20-8 on my computer. Today, I ran a find command on one terminal and tried to run a 'mv' command on the other terminal. The 'mv' command failed because drive was...
Summary: I've now attempted to install both Fedora and RedHat on my laptop. I format the bootdisk with rawrite and boot from the floppy (I can't boot from CD). Once I load up the graphical install program the ...