Re: Bios for Citygate Harris 286 motherboard
Posted on 2022-04-21, 00:18
Can you post a picture of your board? Just because you have a 25Mhz Harris does not mean it is running at 25Mhz (I have a board with 20Mhz Harris in a 16Mhz board)...
Re: keep getting checksum error when doing rtc coin mod onds1287
Posted on 2022-04-20, 13:32
The 12887A is replacement for 1287A, the 12887 non-A is replacement for 1287 non-A. The "A" have a cmos clear pin.
Re: Help Request: 486 random boot problem
Posted on 2022-04-19, 22:46
Hmm I have a similar old PBell but board 180433, it started giving issues which lead to the PSU failing but after a year on a better PSU it started having issues again and is near dead now. I do not think the boards were made to last this long and suspect bad capacitors but is not worth my time to …
Re: Toshiba 220CS doesn't get past BIOS
Posted on 2022-04-19, 22:26
I have a 110CS which is a Pentium 100Mhz, your 220CS should be a Pentium 133Mhz iirc. I have the service manual for 110CS/CT from minuszero which would be similar to the 220CS/CT in diagnosis. Check this section 2: troubleshooting: http://minuszerodegrees.net/manuals/Toshiba/Satellite/Toshiba% …
Re: Apollo Pro 133A - Incompatibility with Riva TNT2 M64?
Posted on 2022-04-18, 01:24
Windows 98SE has support thru DirectX 9.0c (Dec. 2006). Have you tried installing Dx 9.0c and see what happens ?
Re: Replacing bios chip on AMI Enterprise III
Posted on 2022-04-17, 15:57
Yes those will work. The TL866ii does support N28F001BX-T @PLCC32 so you need the PLCC32 to DIP32 adapter, however the software only runs under Windows from XP thru Win10 AFAIK and it can run under Linux + Wine with one proper DLL.
Re: Replacing bios chip on AMI Enterprise III
Posted on 2022-04-17, 14:51
The BIOS chip should be the one with yellowish tag "6807...", if you peel that off you should have a chip number. The XGecu TL866 programmers work very well. Make sure you buy a real XGecu ( xgecupro on ebay) and get the adapters .. You will have to unsolder it to replace. Makes me wish all boards …
Re: Terratec EWS64XL — a few questions about soundfonts
Posted on 2022-04-16, 01:16
Wish I could help but all I tinkered with is AWE32/64 and sound fonts 🙁
Re: Which software to use in order to *clone* my CF drive? (Win98SE)
Posted on 2022-04-14, 00:39
Someone else here pointed to that a while ago but have not tried it yet, sorry 😀
Re: Inwin A500 missing the front fan holder
Posted on 2022-04-13, 01:46
Good job !
Re: Remarked Dallas RTC chips?
Posted on 2022-04-13, 01:44
Yeah they probably scrubbed and remarked it. I also got some from a well known seller a few years ago that went flat dead very quick. Another good source in USA is Quest Components, bought many from them and some date stamped year 1999 and were still at 3.2 to 3.3v....
Re: VOGONS Driver Library
Posted on 2022-04-12, 23:04
I've found and scanned some manuals for 386 mainboards. 386 mainboard manual - september 1993.pdf 386 mainboard manual - june 1993.pdf Excellent !! The Sept 1993 manual matches Soyo 386 SY-019R1 : https://www.ultimateretro.net/en/motherboards/6747#downloads and the June 1993 matches Soyo 386 SY- …
Re: 486 Motherboard with abysmal ISA performance
Posted on 2022-04-12, 03:18
Ohh just go ahead and state it: the chipset is not optimized for a 486 and better suited for a 386. So like that odd Opti based board that can run either 386 or 486 was not really refined for a 486 but ran OK with one but nothing to brag about ;p
Re: Help request - 386 motherboard identification
Posted on 2022-04-12, 01:08
I saw that too and the 387/87DLC/3167 socket has the key pin on that same side. One quirk: as I looked thru 386 BIOS collection at all the boards not one had the CPU and MathCo pointed exactly same direction. It is possible but if mine would do some double checking before putting a 386 cpu in the …
Re: Help request - 386 motherboard identification
Posted on 2022-04-11, 15:23
Actually the chipset gives a clue to finding Pin one. Cannot see in the picture for the sockets but the one, you may be able to see on the board by tilting and rotating it around in bright light for the other.
Re: Adding a fan header to Geforce3 TI 200, help with components check needed!
Posted on 2022-04-10, 23:26
Are you sure the solder spots are without juice as it is? What were these components supposed to do? Fan speed control? Don't think that was even remotely a thing with the Gf3. So, by all means, tinker away, just keep in mind that since you're the owner of a SLI voodoo set and loaded anyway, you …
Re: Adding a fan header to Geforce3 TI 200, help with components check needed!
Posted on 2022-04-10, 23:19
Hmm well if you have the Dell version it has no heatsinks on the Vram unlike all retail Ti-200's so you will be very limited in OC even if you fit a fan on the GPU heatsink. Most of the Ti-200 OC involves bumping the GPU by say 25Mhz but also bumping the memory by 50mhz (key is bump ram 2x the cpu …
Re: ISA card with Floppy controller bypassing internal BIOS
Posted on 2022-04-10, 20:32
Those should be 16bit ISA slots....found this: https://www.system-cfg.com/detail.php?ident=444 "Manufacturer: Society of Microcomputing and Telecom Company (Créteil, France) AKA - S.M.T. Release date: 1987 Reference: Goupil G5 286 Processor: i80286 at 8 MHz Memory: 1024 KB RAM ROM??? KB Interfaces: …
Re: ISA card with Floppy controller bypassing internal BIOS
Posted on 2022-04-09, 23:01
Yes Floppy cards with BIOS do exist, have one in my Turbo XT for support of HD floppy drives. Cannot remember the brand but know the old ones are getting rare and very expensive (compared to other controllers)... added: Here is a newer version that might work: https://monotech.fwscart.com/ …
Re: P4CMX manual
Posted on 2022-04-09, 22:10
You can get the Manuals here: https://corvalent.com/downloads-drivers/#017J4IJ3HI4L27HKX4QFF35TZXCYYK63IA if that not work go to Support > Downloads.. > Retired and click the P4CAX-P4CMX button According to this: http://web.archive.org/web/20120428061643/http://www.corvalent.com:80/02b_ind_boards/mb …
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