PCChips M571 ...(AGAIN!!!!)
Hello, I've recently upgraded my PC, and am now using my old motherboard and CPU to upgrade another PC.
The problem is my old motherboard (a PC CHips M571) and Processor (AMD K6-2 300) was working fine on my old computer,
I've put it into the new computer, auto detected the HDD everything starts up fine, until it goes to the Boot check.
It will say :-
Checking for boot sector on Floppy (Win '98 start up disk) then say ... OK , and stay there and do nothing
Its the same for the IDE- 0 will check for a boot sector and do nothing (even though windows installed to the HDD)
If I press enter,it checks the boot secotor again.
The other thing is that I change the order of the peripherals to search on start up for booting up, so if I put Floppy first IDE-1 second,
it does floppy and then IDE-0 ??!!!
and if I do IDE-1 and floppy second it looks up IDE-0 ....
Several issues wiht that board/processor combination. I've built a number that work fine.
1. What revision is the board. Some of the older ones did not have the propper voltage settings for that chip.
2. What clock and multiplier are you using. Best bet is to try a slower clock and larger multiplier. Some of those chips have problems with a bus above 66MHz.
PS I'm currently running a K6-2/500 slightly underclocked at 6*75 on that board. I will boost it to 6*83 when I get a video card the onboard video is not stable at 83.
I've had it running under that combination for over a year. I've just upgraded my PC, so took out that combination from my PC, and upgrading another, this is where the problems have occured.
The voltage settings, clock and multiplier settings are fine, as they have worked for the past year like that.
I've tried to clear the CMOS (using Jumpers) and removing battery but no joy. Same thing happens.
I've got a feeling that the BIOS got corrupted somewhere in between the removal from my PC and the installation into the new one
It might be a good idea to flash your Bios as a precaution in order to establish that your boot sequence etc. is as PC-Chips (bless 'em) intended. For M571 info, manuals, Bioses etc try: http://web.libertysurf.co.uk/m571/
Problem is, how can you flash it when you can't even boot to dos. This mean you have to take out the bios chip and put it in a working motherboard if you have any that is but most likely it obsolete so who know.
At least with older M571 v3.2A and older, you need to have the system bus at or below 66 MHz with AMD processors, or else they'll hang before boot. Use 4.5x 66 MHz for a /300. Cyrix 6x86/MX/MII work at 75 or 83 MHz bus on these boards.
If you suspect an old BIOS to cause another problem, then why not try booting dos while an old Pentium is in the board. (Don't forget to move the P54C/P55C jumpers, or else you'll fry either the processor or the mainboard's voltage regulators!)
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