Tom's Hardware > Forum > Old Man/Woman's Club > Other > AMD K6-2+ & Asus P55T2P4
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frazway   01-14-2003 at 08:58:11 AM

RE: Article: Socket7 Tuning: Asus P55T2P4 with AMD K6-2+

I have the Asus P55T2P4 Rev 3.1 motherboard. I read the above article and decided to buy an AMD K6-2+ 450 CPU to try it out.

It worked at first, but the voltage regulators are running really hot to the point where I burned my finger. I assume this extreme heat is not good for the motherboard.

I have a good CPU heat sink, and a second case fan blowing over the voltage regulators but it does not seem to help.

I followed the jumper setting in Toms article.

Does anyone have any ideas on what may be causing the voltage regulators to overheat like that, and what I can do to fix the situation? I am worried that I will will burnout the CPU and motherboard.

The only unusual thing is that when I ran Sisoft Sandra, the CPU shows as a K6 III.

Thank you for any advice,

Frazway

<P ID="edit"><FONT SIZE=-1><EM>Edited by frazway on 01/14/03 03:02 AM.</EM></FONT></P>

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casiowatch   01-14-2003 at 10:31:17 AM
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I'm assuming by voltage regulators your talking about the Power transistors circuits which are connected to heat sinks. If you are worried about the heat accumalation just attach a bigger heatsink to the voltage regulator.

It is very possible that there could be a short in the circuit, which could damage the board, that causes a lot of current to pass through and justifably overheat the transistor. Maybe you should speak with a computer tech and have him/her check it out.

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<b>All the world's problems can be solved through COMMON SENSE<b>

Reply to casiowatch
frazway   01-15-2003 at 06:53:34 AM
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Hi Casiowatch,

Thank you for taking the time to reply.

I was talking about the power transistors that are attached to small heat sinks (three of all together). I guess I would have to custom make the heat sinks? I may be too late to do anything as last night some major smoke came from my motherboard and I could no longer boot up.

I appreciate the help.

Frazway

Reply to frazway
casiowatch   01-15-2003 at 07:13:35 AM
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If the board still works, you can try try installing a heat sink from an old R/C car from Radio Shack. They use the 3 powertransistor, common heat sink.

If it isn't big enough, you can probably find an old CPU heat sink and grind it down to be a single think slice, then drill some holes and see if it can be attached.

If you think the Power Transistors burned out (none have on my watch, only Operational Amplifiers), try buying some from <A HREF="http://www.digi-key.com" target="_new">Digi-Key</A>. You'll need a special soldier that doesn't have lead to attach them.

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<b>All the world's problems can be solved through COMMON SENSE<b>

Reply to casiowatch
bum_jcrules   01-15-2003 at 05:07:50 PM
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Which settings did you set the jumpers to?

<b><font color=red>Fredi</font color=red> <font color=red>Fredi</font color=red> He's our man! If he can't do it no one can!</b>

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pike   01-16-2003 at 12:50:47 AM
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I did the same thing with my P55T2P4 and a K6-2 500+ with no harmfull overheating. You better recheak your voltage settings and all those multipliers. Looks like you overcloked it.

Mine has been going strong for well over a year now, so this does work.

Oh, it's normal for the K6-3 id

<font color=blue>THGC is filled with only the best components! <A HREF="http://perso.club-internet.fr/ludo3/NB/2/505.jpg" target="_new">my anima</A> </font color=blue>

Reply to pike
frazway   01-16-2003 at 06:42:50 AM
- 0 +

Hi Bum_JCRules

My processor is an AMD K6-2+ 450

The jumpers are set as follows:

JP8 1&2
JP9 2&3
JP10 1&2
JP11 2&3
JP12 1&2

Also, I jumpered 2.5, 2.8, 2.8, 2.9

Does this seem right?

Thanks,

Frazway

Reply to frazway
bum_jcrules   01-16-2003 at 05:13:02 PM
- 0 +

So with...

JP8 1&2
JP9 2&3
JP10 1&2

... You should be at a 75MHz FSB.


With...

JP11 2&3
JP12 1&2

...you have the 2.0x multiplier. (The processor should think that it is 6.0x)

With 2.5V, 2.7V, 2.8V, 2.9V closed you should get 2.0V. You are sure that you have 3.2V open...???

Having said that... which board is it again? I have the P55T2P4-S. You have the P55T2P4 Rev. 3.1. Correct? There are slight differences.

What BIOS are you using?

Crash, Which one are you using? (You have the same board as him... right?)

<A HREF="http://www.upgradeability.com/K6plus/compatibility.htm" target="_new">K6-2+ Compatability Chart</A>

<A HREF="http://www.upgradeability.com/K6plus/K63plus.htm" target="_new">K6-3+ Compatability Chart</A>

<b><font color=red>Fredi</font color=red> <font color=red>Fredi</font color=red> He's our man! If he can't do it no one can!</b>

Reply to bum_jcrules
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