That sure is a peculiar machine.
It is surprising that this laptop still survived itself to this day.

swaaye wrote:

An alternative to the aftermarket coolers might be the big Pentium II passive coolers that OEMs used. With an 80mm fan attached […]
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An alternative to the aftermarket coolers might be the big Pentium II passive coolers that OEMs used. With an 80mm fan attached they should be great. But I'm not sure if they are all removable from the PII they are attached to.

For example. Many of these on ebay for cheap. Looks like hex screws.

THIS!^ also i'd clean off the old thermal paste and use MX2 or AS5, then strap on a 120mm fan with zip ties preferably with heat sink like above.

sliderider wrote:

The Golden Orb is your friend […]
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The Golden Orb is your friend

(too lazy to take my own pics so I stole from the internet)

I also have one of the black heatsinks with a dual fan setup on another of my Slot A Athlons.

Looks great and probably would solve my dilemma but it means spending more money on this system.

Would a Thunderbird 650 run similarly hot like a 1000mhz?

Do the 650 cpu's have heat issues too?

I have one of those slot 1 coolers from my sisters old Compaq. came off a 450mhz pentium2, I think that thing would be alright with some some fans rigged up to it, not sure however since I have never utilized it on more than a 450mhz p3

rgart wrote:

Looks great and probably would solve my dilemma but it means spending more money on this system. […]
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sliderider wrote:

The Golden Orb is your friend […]
Show full quote

The Golden Orb is your friend

(too lazy to take my own pics so I stole from the internet)

I also have one of the black heatsinks with a dual fan setup on another of my Slot A Athlons.

Looks great and probably would solve my dilemma but it means spending more money on this system.

Would a Thunderbird 650 run similarly hot like a 1000mhz?

Do the 650 cpu's have heat issues too?

I think my slowest Slot A is 700mhz but I haven't done much with that one since I upgraded to a 950 so I don't really know how how hot the slower ones run. The Golden Orb that I have came off of that one, though.

I have a Slot 750 (model "K75") and I actually rigged the fan for 7v to make it quiet. It doesn't overheat.

The 900+ MHz models kick out more heat but still I've run Tbird 1400 and Palomino 2000+ with relatively small heatsinks. As long as they don't hit 80C they should be stable.

@Rgart - can you get some sort of voltage reading? Maybe you're inadvertently overvolted. You could even try undervolting if the board can go under 1.75v.

The 1000 MHz Slot A Athlon CPU was the first CPU that AMD thought needed two heatsink fans. Pictures are here:
http://anandtech.com/print/498/

Also, here are some slot-CPU heatsink comparisons from back in the day:
http://www.anandtech.com/print/502/
http://www.speedy3d.com/articles/cooler_roundup1/01.shtml