Can anyone Solve this? K6-2/Board problem

BarnyardMonkey

Platinum Member
Feb 28, 2000
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Had a system together for my 11 year old niece,and out of no where it would't post no more.
K6-2 400 CPU was installed.

Ok so i tried an older P133 CPU i had laying around to see if it was the CPU.
the P133 booted fine.

so went ahead and bought a K6-2 450 and now its doing the same thing that the 400 was doing.
tried changing PSU's but not sure if either are AMD approved.
they are just a couple Generic 250W.

but was wanting to know if a PS isn't AMD Approved,will it not let a system post at all?

i noticed when i had the 400 in it working fine,it would get the random reboots every now and then.

but as i said,the P133 works fine but the K6-2 400 and 450 does not.
just want to make sure that its not the CPU that i just got thats bad.

Also,with the first PS,when i power on with the AMD CPU in it,the PS fan will start to turn on,but then just quit.
it will work fine with the P133.

Just tried another newer PSU with no luck.that makes 3 PSU's now,and which one of them ran the system fine for about 2 months.also tried underclocking it to see if that had any affect with no luck.


Specs:

ATX Biostar M5ALA Board
K6-2 400 and 450
48X IDE Cdrom
IDE HD
PCI 8Mb Vid
ISA Sound
ISA 3COM NIC


Thanks for any help.



Shawn.
 

Jiggz

Diamond Member
Mar 10, 2001
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This is not PSU issue like the Athlons! K6-2's requires less power and are less sensitive to PSU than their bigger brother Athlons. The problem could be a jumper setting on the mobo with regards to the Vcore voltage. I don't believe the K6-2 have the same core voltage like the P-133. Check the mobo manual.:cool:
 

BarnyardMonkey

Platinum Member
Feb 28, 2000
2,318
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I have the jumper settings for the board and i have it set to 2.4 3.3 I/O.
which it says on the top of CPU.

and the 400 said 2.3 3.3 I/O i believe.

and i don't think its the PSU either now,since i tried 3 in total.

is it possible for the board to be bad somehow?just never seen one run something for awhile,then just quit out of the blue and not run it again.
but will run a different CPU.

i'm hoping this CPU i just got isn't bad as well as the other one.
no way of checking in a diferent system either.



Shawn.
 

NelsonMuntz

Golden Member
Jun 14, 2001
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With those settings it will run a P133 but not a K6-2. Interesting. And you stated that it was running for a while and then just quit? You are changing the jumpers every time you go back and forth between the two processors right? If you put the K6-2 in with the jumpers set to the P133, just changing the voltage, does the K6-2 boot?
 

BarnyardMonkey

Platinum Member
Feb 28, 2000
2,318
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Nelson, i have tried to switch the K6-2 400,and the 450 with the P133 settings,and still no go.
won't post with eiter K6-2 in.

and yeah,it worked for quite awhile with the K6-2 400 in it.


Just thinking maybe the K6-2 450 may be bad as well.
hoping to test the CPU's out on another system tomorrow.



Shawn.
 

Pederv

Golden Member
May 13, 2000
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Have you checked with the motherboard manufacturer, to see if the board is capable of supporting the K6-2-400? Those babies do require a lot more current than a P133. I had a K6-2-550 on a VA503 REV 1.1, that I gave my sister, run for a year before it killed the voltage regulator on the motherboard. I think the VA503 REV 1.1 was only rated up to 400MHz.
 

Danlz

Senior member
Feb 24, 2000
550
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Early K6's greater than 200mhz had a Post problem that was fixed through a M$ patch. Win98SE does not encounter the Post problem.
 

BarnyardMonkey

Platinum Member
Feb 28, 2000
2,318
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Just found out that this board also comes in a Rev 2.0.
mine is the 1.0.

but the settings for the K6-2 400/450 are on the board.


if anyone can find jumper settings for the V1.0,it would be appreciated.
i have bene going by the V2.0 for the voltage settings.



Shawn.