I'm curious. You have opted for a PCI 486, but you are using a VLB card. Also, I can confirm that this board OC's to 160, meaning 40 FSB. The board does not support EDO. BTW, what revision is your board?

I have got this board (rev 1.8 ) working at 200 MHz, but Quake won't run. I think it's because the SiS chipset can't cope with this level of abuse. You'll need to cut a pin (S4) on the CPU to force the board to ignore the CPU's voltage detection pin, and consequently it'll pump a rather dangerous 5V in to it, which will allow you to do the outrageous 50 MHz 4x multi overclock. But if you want 200 MHz, your best bet is to get a UMC chipset based mobo. Actually, your even better bet is to get any old Pentium mobo!

want to leave as much as space for the PCI devices, plan to use USB on it 😀, although never tried any USB drivers in 95, only in 98, maybe the latter will work on the first one. It's v 1.8. that VLB is also a windows accelerator, wanna see the smoothness I expect from it 😀. And thanks for your prompt repsponse, I've just read your findings you posted in past using this particular mobo...When you say UMC, do you know this board?...will post in a minute.

So this is it and it's dubbed as : MB-8433/40 UUC

I wanna see those golden caps with my bare eyes. It seems the may by solid state capacitors, due to those purple ones - I've read somewhere they should not have the liquid consistency.

That's a very interesting 486 mobo you have there. Reminds me of this one, here. I wonder if it's an older revision? Does it have a revision number on it? I think you should try 200 MHz on it. 😀

Also, it will likely accept EDO RAM. There's a way of checking. If you look at the labelling on the chipset, it'll have a "code" on it, that indicates if it will accept EDO or not. Vogons user feipoa said that "if the UM8881F chipset has an E, as shown below in the given location of -EYT, then it supports EDO RAM."

UM8881F
9633-EYT
R62706

Shodan486 wrote:

Plus I have a huge Intel / Creative ISA video capture card, so I plan to play with that also.

Pic please! 😁

Is it, by any far and away chance an IBM/Intel Action Media II?
If so, it didn't support W95, only W3x and DOS.

I'll go look up a pic of mine...

Link: http://i941.photobucket.com/albums/ad254/inte … um/DSC00193.jpg

If it's this one, Intel removed the driver from it's site about 1 or 2 years ago? But I downloaded it from there and if you have the same card, I can upload it for you here 😉

Edit:replaced link with pic, the other link wouldn't work
Edit2:Replaced again with a direct link as the pic is so huge and I already posted a couple times before 😜

The video board is the VT300 Video Blaster:

Anyways just wanted to point out that those light purplish caps may be solid state type, thus really tempting to do some serious OC, those 200MHz sound promising. I've tried some of my boards today at work, but the only "reasonable" success was OC'ing IBM Blue Lightning & Texas Instruments DX2/66s to 100MHz by 50x2 setting, although did not have the time to install / play something, just pure BIOS environment and so. The DX4 of Intel did respond only to the standard OC of 120MHz using 3x40 option. Tried various voltage values, did not help...

made a mistake - those light blueish caps, not purple.

The Biostar has arrived, will tell more about it in a while, running to the post office to grab it.

Shodan486 wrote:

The Biostar has arrived, will tell more about it in a while, running to the post office to grab it.

And this is the scary part, hope you weren't send a brick....or a bricked board 😉

And pics are always welcome! 😁

retro games 100 wrote:

I'm curious. You have opted for a PCI 486, but you are using a VLB card. Also, I can confirm that this board OC's to 160, meaning 40 FSB. The board does not support EDO. BTW, what revision is your board?

I have got this board (rev 1.8 ) working at 200 MHz, but Quake won't run. I think it's because the SiS chipset can't cope with this level of abuse. You'll need to cut a pin (S4) on the CPU to force the board to ignore the CPU's voltage detection pin, and consequently it'll pump a rather dangerous 5V in to it, which will allow you to do the outrageous 50 MHz 4x multi overclock. But if you want 200 MHz, your best bet is to get a UMC chipset based mobo. Actually, your even better bet is to get any old Pentium mobo!

Is 50 as high as these go for FSB?

Iirc the problem with the SiS 486 boards is they don't support a PCI divider, so you'll always be overclocking the PCI bus. The UMC's seem to, in many cases, actually have a PCI divider of some sort and with a little luck, the board will reach even 66Mhz FSB without any of the busses being overclocked 😉

sliderider wrote:

retro games 100 wrote:

I'm curious. You have opted for a PCI 486, but you are using a VLB card. Also, I can confirm that this board OC's to 160, meaning 40 FSB. The board does not support EDO. BTW, what revision is your board?

I have got this board (rev 1.8 ) working at 200 MHz, but Quake won't run. I think it's because the SiS chipset can't cope with this level of abuse. You'll need to cut a pin (S4) on the CPU to force the board to ignore the CPU's voltage detection pin, and consequently it'll pump a rather dangerous 5V in to it, which will allow you to do the outrageous 50 MHz 4x multi overclock. But if you want 200 MHz, your best bet is to get a UMC chipset based mobo. Actually, your even better bet is to get any old Pentium mobo!

Is 50 as high as these go for FSB?

Yes. AFAIK, there are no undocumented FSB settings for the SiS chipset-based mobos.

So after quite a while 🤣 I've finally decide to crank this shit up pretty high, unfortunately this beautiful setup keeps bringing me down. First of all, I need to mention a couple of changes to the setup:

MOBO: Remains the same
CPU: CPU Am5x86 ADZ 133MHz
RAM: 2x 16MB 70n FPM
VGA:: STB Velocity 4400 aka TNT RIVA 16MB with Voodoo2 12MB PCIs
AUDIO: CMI8738 PCI
Storages: 1GB WD, 56x Acer CD-ROM, FDD

Plus the Video Blaster VT300.

Well, let's get to the point - I really cant get it work with the TNT card with both Glide and D3D functioning properly - I've tried almost all drivers beginning with 3.xx to 30.xx, where not all "xx" have been tested (working on it right now). I am desperate here, trying both DX6.1 & 7, testing it on GL/D3D Quake and Interstate '76. Even the 2D games won't run when using some drivers, I really start to feel that I should declare TNT not working with this particular board 🙁.

I will provide some screenshots as soon as I find something besides imageshack 😁

PS: Everything else works smoothly.

that mobo, minus two ram slots, is the exact twin (by memory) of the first system I ever had brand new. I had an amd 486/133 and a couple 16MB 72 pin sticks in it, and an s3 trio64v2/DX. The problem I had was when I tried to stick a ViRGE in it, it would not work... I found out eventually that the PCI timing and latency were juuuuuust a tiny bit off of PCI in pentiums, which was just enough to make the ViRGE refuse to work. I wonder if this is the same case for you? By what I understand, all but one 486 chipset used VLB to PCI bridge, which could cause this exact issue.

As for data transfer, I highly recommend one of two things: burning CDRW discs, or using a zip100 or zip250 atapi drive. I have three zip100 atapi and like 30 zip100 discs, and am trying to find a usb zip250 for a reasonable price for my new system, since the zip100 atapis hate my usb to pata adapters.

for multibooting, look up system commander. Back in this day it was **THE** best tool to multiboot to single partition, multi partition, or multi HDD. It had to be on a FAT or FAT32 partition, but could boot to xp even if xp was on an ntfs partition.

for a network card, look up 3com parallel tasking II and III ISA and intel pro/100 series pci cards. Best of the best, IMO. I still use the pro/100 and their newer pro/1000 cards in every single one of my systems, even my gaming box which is a 6 core 3.4ghz thuban.

As for win95 sata driver... you shouldn't need one, if you get one of those pata host to sata hdd adapters or bidirectional adapters... the hdd is seen as a pata drive by the host OS. The problem is win95 doesn't include their own DDO type stuff so you would need to install something like that for larger HDDs.

I was never able to get a TNT2 working on a UMC chipset 486 board, not sure about a TNT1. A Matrox Millennium G200 should work fine.

Does the Voodoo2 work well with this chipset?

This board may be the predecessor to the Biostar MB-8433UUD. What are the datecodes and models of your chipsets?

that system is long gone over 10 years ago, and my memory is nowhere near that good, sorry.

feipoa wrote:

Does the Voodoo2 work well with this chipset?

I've had a Voodoo2 working with a UMC8881 M919 😀

Not a lot of application unless you wanted to play Activision's own games (mw2, i76, bz) since their software renderer on a 486 is just dreadful. Also GLQuake, Quake2 and Hexen II is more playable if you just stick with flashblends as 486s get hung up on lightmap caches the most.

Would there be any benefit in adding a Voodoo2 to a Super3 board (2x66 IBM 5x86c-133) which has a Matrox Millennium G200 in it?'

I have always wondered why the voodoo2 cards woked in 486 UMC 8881/8886 chips, but voodoo3 and banshee cards would not.