Why is there too much current going through the regulator?
Maybe a high load, a short circuit?
Regulators adjust the voltage by burning up the excess as heat. Maybe adjusting the regulators input voltage downward would help.
Does/should the cpu+motherboard work?
It might be glued on.
I removed my heatsink by using a razorblade to cut through the glue. I rocked the blade back and forth at each of the corners. Eventually the heatsink came off without too much force.
Mountain
I have a Tyan 1590 also. You first must update the bios.
Jan Steunebrink has patched the 1.16c bios. You can get it here:
Getting the AMD K6-2+ / K6-III+ to work on your Super Socket 7 board.
I only let it boot into DOS.
I'm positive a bios update would fix it, but Tyan won't
do it.
Others have posted about this.
Check this out over at AMDZone:
K6-2+/K6-3+ Comparison
lostatlantis
My K6-III+ just arrived today. One of my motherboards is a Tyan 1590. I tried it at a 100MHz FSB. It would boot at a maximum multiplier of 3x. On the boot screen it showed:
-MMX CPU at 66MHz
tcfpcm
As far as I can tell the only differences between the K6-x+ and the K6-xE+ are the case temperature rating (85C K6-x+, 70C K6-xE+) and the marketing.
The K6-x+ is marketed as a mobile processor, while the K6-xE+ is marketed as an embedded processor.
Oh and the K6-IIIE+ is offered at 550MHz.
The K6-2+, K6-III+, and the standard power K6-2E+ and K6-IIIE+ all have a typical operating voltage of 2.0V. Their 'absolute maximum' rating is 2.2V.
All of them have the same model id which is 13.
(The older K6-2 is model 8, K6-III - model 9)
lostatlantis
I have only heard of one person who managed to get the K6-2+ working properly in the Tyan 1590. Supposedly the maximum it would boot at was 300MHz. He replaced the bios chip with one from Unicore that cost 70 USD.
I just ordered a K6-III+. I will try it in my 1590.
:confused:
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