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Re: Need help from the experts! Turbo button causing AMIBIOS 10 beep post code (CMOS shutdown register read/write error)

Hi, Thanks for your thoughts. I dug up the motherboard manual and it actually says that some VLB expansion cards won’t run with turbo OFF during boot up because of a reduced FSB speed. The manual recommends always booting up with turbo ON and then turning it off if desired once up and running. My …

Need help from the experts! Turbo button causing AMIBIOS 10 beep post code (CMOS shutdown register read/write error)??

Hi, Was hoping for a little help debugging this. Every time I push the turbo button to “OFF” and cold reset my retro 486 machine, I get a blank screen at boot with a 10 beep post code error (AMIBIOS). This is listed as the “CMOS shutdown register read/write error.” If I hit the turbo button again to …

Re: CDROM not recognized in DOS after a SOFT reset but works fine after a HARD POWER OFF reset. Any ideas?

Awesome ideas guys. I would just operate it as master / slave but the IDE ribbon cord won’t reach so I really wanted to use the CDROM on the secondary controller. I did get it to work! I tried every idea you guys listed and what finally did it was loading the DTC controller card driver and setting …

Re: CDROM not recognized in DOS after a SOFT reset but works fine after a HARD POWER OFF reset. Any ideas?

Pentiumspeed — thank you so much for your help. The plot thickens — everything works fine if the CDROM is on the primary IDE controller as SLAVE. I can push the reset button and it loads fine on DOS. If it is on the secondary IDE controller as a master, it will NOT work after a RESET button reset. I …

Re: CDROM not recognized in DOS after a SOFT reset but works fine after a HARD POWER OFF reset. Any ideas?

IDE/PATA, ATA has reset line as well. This means it is not asserted properly. Cable, controller card please try them. Cheers, Hi, CD-ROM is NEC Multspin 6V CDR-1350A EIDE Controller card is DTC 2278D IDE I have it connected to the second IDE controller on the card using a 40-pin (80 wire) cable. …

CDROM not recognized in DOS after a SOFT reset but works fine after a HARD POWER OFF reset. Any ideas?

Hi, Building my 486 retro PC. My NEC multisync 6V CDROM works fine after a COLD HARD POWER OFF reset and is recognized in DOS . However, after a soft reset (CTRL-ALT-DEL or reset button), the dos driver gives the error: CD-ROM drive not ready. A(Abort) or R(Retry) Will work fine if I hard power off …

Advice on finding Asus VL/I 486SV2GX4 motherboard

in Milliways
Hi, I know this isn’t a marketplace but I’m looking for a Asus VL/I 486SV2GX4 motherboard. Any advice other than eBay on where to find one of these things? I’m willing to pay top dollar but I’m having difficulty finding a single one for sale on the entire planet. Thanks.

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