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Old 09-09-2005, 12:11 PM   #1
bong.mau
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overclocking


Hi
env:
sw: Mandrake 10.1
hw : pentium II deschutes 350 mhz
prb description
i just overclocked the cpu passing to 400 mhz
i overclocked it using rocker swtih on the mainboard as instructed by a label on the rear cover.
linux loapds fine,but both dmesg and hardrake still shows a 350 mhz processor...
i messed up something ? or this is normal .....
thanks in advance

Maurizio
 
Old 09-09-2005, 01:12 PM   #2
edong23
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did you try

cat /proc/cpuinfo

and see what it says... i havent messed with overclocking much.

is it a slot p2s cuase you can clock the crap out of them..
 
Old 09-09-2005, 01:12 PM   #3
edong23
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also, check the bios. see what it says the processor is clocked at.
 
Old 09-10-2005, 07:23 AM   #4
bong.mau
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hi
bios still shows 350 mhz
cat cpuinfo still show 350 mhz
i saw cpufreq tool.....now i will try to learn more....in the mean time if there is someone that is weel trained about overclocking and linux and want to post....
thanks in advance

Maurizio
 
Old 09-10-2005, 08:18 AM   #5
whansard
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Overclocking doesn't really have anything to do with the operating system.
That chip you are using is probably multiplier locked. You may have to have a setting for raising the bus speed to overclock the chip. There's lots of things you can do, like putting tape over a specific contact on the chip and stuff like that.
This all has more to do with your specific motherboard than anything else.
 
Old 09-10-2005, 12:04 PM   #6
bong.mau
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hi
please read carefully my first update...
i overclocked using the rocker switch locate on the motherboard as instructed by a label on the rear cover...
(in addition the pc is an ibm pc and i'm a forme ibm hw and then sw tech...
so if ibm write is possible to overclock to
400 mhz only acting on switch.. then this is true !)
the question is :
why linux still recognize the cpu at 350 mhz ?
Maurizio
 
Old 09-10-2005, 12:43 PM   #7
whansard
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The cpu ignores the motherboard's setting for cpu multiplier.
 
Old 09-10-2005, 01:23 PM   #8
bong.mau
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Hi

what means...

The cpu ignores the motherboard's setting for cpu multiplier.

that the rocker swithces are uneseful and ibm put it on the motherboard only to joke...?

please clarify my doubts aboout oveclocking....
is there some pgms to measure the cpu speed both from linux and windows...
pgm executing a loop of istruction (not endless loop) ?

Maurizio

Maurizio
 
Old 09-10-2005, 09:51 PM   #9
edong23
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if your bios is only saying 350, then whansard is right, it is not overclocked. the cpu must be ignoring it. there is no point looking toward the os... if the bios says 350, it is 350, i dont care if you have hot glue on it... as far as software or os overclocking, some athlons can be controled by software on the system, fsb i believe... eitherway, you either dont have something right, or you have something wrong.. good luck,,, sometimes you ahve to use faster mem, too, i think...
 
Old 09-10-2005, 10:34 PM   #10
whansard
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many cpu's are multiplier locked at the factory for various reasons. Some pentium 2's will ignore those settings and some will not. For your own satisfaction, change the jumpers to different multiplier settings and see if the cpu stays the same no matter what you set.
With the cpu's that are multiplier locked, you can still overclock by raising the bus speed, if the motherboard allows.
 
  


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