First post, by H.W.Necromancer
Hallo,
my effort so far is futile. I have the PowerTech MB459 board.
It is an ISA only 486 LIF socket board, I have got this corroded. I am half way to repair it - it is posting, but !no keyboard" - but any how I think I am able to finish it.
However I want to try some other CPUs and add some cache. There is a bunch of jumpers. I am able to setup the FSB clock - this I found on other web site - fortunately same for other boards with the same clocking chip.
But the propper settings for different brnads of CPUs and especailly cache is not available. /-:
There is also a version of the mobo with a voltage regulator, mine has none.
Is there any one who has the copy of the manual? Or just simply jumper descriptions?
I) My board it the same as here
https://www.clous.cz/powertech-mb459/
This fellow countryman told me he obtainede another same boards (1.2V with a voltage regulator) but all of them are with no cache.
II) another Slovak guy find out his:
MX8315PC chip is doing 25,33,40,50MHz as follows:
25MHz short-open-open
33MHz short-short-short
40MHz short-short-open
50MHz open-open-short
That is good but for more fun with the board the manual will be very helpful!
Thank you, any help is appreciated.
I hope it might help to other owners of this cute board as well.
