AMD Phenom(tm) II X4 955 Processor runs only between 800-2700 Mhz

Alex mysqlstudent at gmail.com
Thu Jun 2 17:40:51 UTC 2011


Hi,

>> I'm having a similar problem. My Athlon X6 1090T is overclocked from
>> 3200 to 3700, yet appears to be running at 800mhz. I've stopped
>> /etc/init.d/cpufreq, but where the monitor usually shows 3200 when
>> it's stopped, now it's showing 800.
>>
>> processor       : 5
>> vendor_id       : AuthenticAMD
>> cpu family      : 16
>> model           : 10
>> model name      : AMD Phenom(tm) II X6 1090T Processor
>> stepping        : 0
>> cpu MHz         : 3200.000
...
>> bogomips        : 7449.19
...
>> # cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit
>> 3200000
>>
>> # dmesg |grep Detected
>> [    0.000000] Detected 3724.112 MHz processor.
>> [    5.144606] [drm] Detected VRAM RAM=1024M, BAR=256M

>  From the output of your /proc/cpuinfo, it shows
> your cpuspeed to be 3200.00 MHz, not 800MHz.
> Your bogomips is stated to be 7449.1 mips.
> Where are you seeing 800MHz? From a benchmark
> or other system file?

The little cpuspeed icon in the icon bar at the top shows it, and so
does gkrell. If I shut down cpuspeed, it shows 3200 in all places, but
there's still the disparity with the "Detected" line from dmesg.

I haven't isolated it yet, but for some reason sometimes gkrell and
the cpuspeed icon shows 800 even when /proc/cpuinfo shows otherwise.

> model name : AMD Athlon(tm) 64 Processor 3700+
> stepping : 10
> cpu MHz : 798.186 <<<<< This is my baddie :)

And you don't have cpuspeed running? Is it any different if you boot
into single-user mode and rule out any programs or other drivers that
may be influencing the CPU speed?

Thanks,
Alex


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