Re: IBM PS/1 Consultant 2133-G46
Posted on 2023-11-05, 02:31
Also, I used a pick to poke a hole in that blanked out VGA port hole so that my VGA cable could fit. Now, the onboard video works. This is a completely working system now!
Re: IBM PS/1 Consultant 2133-G46
Posted on 2023-11-05, 02:03
Rookie mistake - it did not seem to like the ISA VGA card I had in there despite it sending signal to the monitor. I tried a different card, a 16-bit ISA VGA card, the good old ATI VGA Wonder... Works.
IBM PS/1 Consultant 2133-G46
Posted on 2023-11-05, 00:55
Hello awesome people! My good friend brought me an unexpected barn find - a VERY clean IBM PS/1 Consultant 2133-G46. Opening it up, I was amazed at how clean the system to be. All electrolytic capacitors appear normal and there's zero physical damage to be seen. So, I have been trying to understand …
Best place to upload disk images?
Posted on 2023-10-27, 01:22
Hello folks! May I please ask the community what the best site for uploading vintage disk images to? Is it truly still https://archive.org/? Or has something better come along? I was just given about 300 3.5 and 5.25 floppy disks and will be going through them very soon. My goal is uploading images …
Alternative Socket 7 heatsink clamp - spring?
Posted on 2023-08-09, 02:36
Hey! I got an FIC VA-502 from eBay and today when I received it I noticed one of the heatsink mount tabs is broken from the ZIF socket. If memory serves, these ZIF sockets also could support a spring-type of heatsink mount that would use the other tab to the side of the broken tab. I cannot for the …
Re: PCChips M530 not posting - ideas?
Posted on 2023-07-29, 19:23
That chip is the super IO and should not get hot. Sounds like burned traces if some volts do not show on the diag card in ISA slot but do in PCI. I would carefully use a voltmeter and check the ISA w/o the diag card. Curious...Are you trying to boot the board with no ram or cpu heatsink (as in the …
PCChips M530 not posting - ideas?
Posted on 2023-07-29, 17:47
Hello awesome community! I picked up a PCChips M530 from eBay and have been unable to get it to post. The board: https://theretroweb.com/motherboards/s/pcchips-m530 The symptoms are no beep at power on. The UMC chip (UM8663BF) begins heating up abnormally hot (too hot to the touch). With my post …
Re: Pentium Overdrive 83 does not work with external cache enabled in the BIOS
Posted on 2023-07-26, 01:14
Well I decided to experiment by flashing the latest version of Mr. BIOS for this specific chipset. Guess what? The Pentium Overdrive CPU now works perfectly. So for those searching and having similar issues, it could be a BIOS issue and an update is in store.
Re: Pentium Overdrive 83 does not work with external cache enabled in the BIOS
Posted on 2023-07-15, 18:37
From the date codes on the chips of your board it seems to be from mid to late 1993. Keep in mind that Intel changed the electrical specs of the Pentium Overdrive shortly before its release, so motherboards from before 1995 usually do not work properly with that CPU. In some cases you can make it …
Re: Pentium Overdrive 83 does not work with external cache enabled in the BIOS
Posted on 2023-07-15, 17:05
I'd be really interested if there's a different BIOS I could try with this motherboard. I have ROM programmer and some spare 256k and 512k EEPROMs! Should I try 15ns cache instead of the current 20ns? BTW, the speeds for the currently populated are set to be 3-1-1-1 since it's 20ns at 33fsb.
Pentium Overdrive 83 does not work with external cache enabled in the BIOS
Posted on 2023-07-15, 16:48
Hello awesome community! I am running this exact motherboard (even contributed a BIOS dump and image!): https://theretroweb.com/motherboards/s/bek-tronic-bek-v409 I have been enjoying a 486 DX-2 66mhz on it for some time and decided to get myself a Pentium Overdrive 83mhz CPU to drop in. According …
Promise EIDE2300 BIOS
Posted on 2022-07-29, 01:14
hello folks! I'm trying to get working a Promise EIDE2300 but am having trouble getting it to work. Symptoms are it not proceeding past the point of prompting to run in Turbo, Fast, or Normal mode. I've tried every memory address, IRQ, disabling LBA, disabling the bios driver, multiple IDE drives, …
Re: TVGA9200CXr BIOS
Posted on 2022-07-15, 22:12
How about this??
486 Pentium Overdrive challenges
Posted on 2022-07-14, 17:55
Hello folks! Thank you in advance for your help. I am running this exact 486 motherboard: https://www.ultimateretro.net/en/motherboards/1041 According to the jumper settings, this motherboard supports the Pentium Overdrive 83mhz CPU. I've recently obtained such a CPU but am experiencing some odd …
Re: Help me choose compatible 30-pin SIMM memory for a 486
Posted on 2022-07-12, 00:45
Done!! Filename PXL_20220712_004103973.MP.jpg File size 1.27 MiB Views 924 views
Re: Help me choose compatible 30-pin SIMM memory for a 486
Posted on 2022-07-11, 16:53
Not really, just don't loike em simple as :) OK ok ok - got it - AND...I even contributed some pictures and a BIOS dump to: https://www.ultimateretro.net/en/motherboards/1041 Have any luck with the RAM? I believe the UM491 does not support robbing a bit from the tag RAM to use as the dirty RAM. So …
Driver for the Trident TVGA9200CXr
Posted on 2022-07-11, 16:47
Hello folks! I've installed Windows 98 SE on a 486 PC, with a Trident TVGA9200CXr VLB card. Windows 98 SE has its own generic Trident driver it used during OS installation. However, I was wondering, is there a different driver from Trident I should be using instead? I don't see anything at all …
Re: Help me choose compatible 30-pin SIMM memory for a 486
Posted on 2022-07-03, 01:56
maxtherabbit wrote on 2022-06-29, 19:45: PDXTony wrote on 2022-06-29, 19:39: maxtherabbit wrote on 2022-06-29, 19:37: Please stop linking to stason. OK now I am curious why it matters. Did Stason do something bad? Not really, just don't loike em simple as 😀 OK ok ok - got it - AND...I even …
Re: TVGA9200CXr BIOS
Posted on 2022-07-01, 21:53
OK I think I got it but I need to figure out where to post the .BIN file as this forum only allows image file attachments...
Re: TVGA9200CXr BIOS
Posted on 2022-07-01, 21:27
Does anyone know what ROM brand and model this is? I'm having a hard time figuring it out so that I can dump the ROM....
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