zwrr wrote on 2025-08-22, 00:29:

Use 386: Remove the 486 CPU, set the CPU type jumper, set the FSB jumper to 66. Use 486: Install 486CPU, set CPU type jumper, se […]
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mtest001 wrote on 2025-08-21, 12:48:

zwrr wrote on 2025-08-21, 02:15:

2. FOREX chipset 386 & 486 hybrid motherboard
It is a Global Computer Networks FOREX 386/486 with mediocre performance, no more performance tuning options in the BIOS, and a memory read and write speed of only 12MB/s.

Interesting, how do you switch between the 486 and the 386? Do you have to enable one or the other in the BIOS?

Use 386: Remove the 486 CPU, set the CPU type jumper, set the FSB jumper to 66.
Use 486: Install 486CPU, set CPU type jumper, set FSB jumper to 33.

No BIOS setup is required

ah the good old days of physical jumpers, viruses couldn't infect your bios if the jumper was physically in the wrong spot.

zwrr wrote on 2025-08-22, 00:29:

Use 386: Remove the 486 CPU, set the CPU type jumper, set the FSB jumper to 66.
Use 486: Install 486CPU, set CPU type jumper, set FSB jumper to 33.

No BIOS setup is required

Ok, and if you set the jumpers WITHOUT removing the 486 what happens?

KT333A rev CD motherboard with what looks like a few bulging caps. Gotta scratch that "maximum powa" itch for 3.3v AGP (Voodoo 3 3000). Current KT266 motherboard is limited to Athlon xp 2000+
SD2IDE capped at 33Mbps but is really stable, KT333 is full 133Mbps so may use ssd again but found ssd's are generally unstable compared to sd card

mtest001 wrote on 2025-08-22, 09:08:

zwrr wrote on 2025-08-22, 00:29:

Use 386: Remove the 486 CPU, set the CPU type jumper, set the FSB jumper to 66.
Use 486: Install 486CPU, set CPU type jumper, set FSB jumper to 33.

No BIOS setup is required

Ok, and if you set the jumpers WITHOUT removing the 486 what happens?

Yes, I tried that, and while installing a 486DX-33 processor, I set the jumpers to use a 386 processor, and turning on the power nothing happened, no self-test, no alarms, and no post code were displayed.

I was looking for a proper SB16 for some time, so this CT2290 got in.

PD2JK wrote on 2025-08-22, 12:18:

I was looking for a proper SB16 for some time, so this CT2290 got in.

The attachment DSC_5786~2.JPG is no longer available

Very nice score ! 😀
it has that chip that many boards lack... I dont remember what it was used for... but is a plus non the less 😀

Picked up a Thermaltake case "designed by BMW"

ODwilly wrote on 2025-08-22, 15:46:

"designed by BMW"

It has coolant that will leak and catch fire?

Asus 6600GT Silent Cool - 6€
HD2900XT - 20€
Gigabyte K8NS-Ultra Bundle with CPU and cooler - 20€
Albatron 6800GT - free from a friend for repairing a motherboard.

Some finds in Germany.
Also working on a 9800 Pro 256MB GDDR2. Very rare model. Proving to be a difficult case. Just installed 8 memory chips from a Quadro FX1000 (aka FX5800) GPU. One defective chip remaining. 😁

Nunoalex wrote on 2025-08-22, 14:58:

PD2JK wrote on 2025-08-22, 12:18:

I was looking for a proper SB16 for some time, so this CT2290 got in.

The attachment DSC_5786~2.JPG is no longer available

Very nice score ! 😀
it has that chip that many boards lack... I dont remember what it was used for... but is a plus non the less 😀

The CT1748A is an "Advanced Signal Processor" or ASP chip. More here on Dosdays on what it is an how its used:

https://dosdays.co.uk/topics/sb16.php

I thought I was scoring a decent deal with this Creative 24x CD-ROM box... but it turned out to be a hidden gem. Inside was a fully functional CR-562B dual-speed drive from 1994 (along with original manuals and disks for Sound Blaster Pro).

Nothing truly amazing, just got this haul of old mice:

Top left is Logitech bus mouse, then two Microsoft serial mice.

Bottom row I have Microsoft Inport bus mouse controller, a MS Bus mouse and a MS PS/2 adapter where you can plug the bus mouse and connect it to a regular PS/2 mouse port.

It was neat to find the Inport card, mouse and adapter in the same haul. Bus mice pop up relatively rarely at least where I live and when they do, it is usually just a mouse or then the controller and I have never bothered with them.

I have already tested the serial mice and MS bus mouse with PS/2 adapter and they work fine. If I have time tomorrow, I slap the controller card to my 386 box and see if that works too.

Does anyone know if the Logitech Bus mouse will work with the Inport controller, or do I need a logitech controller for it? I couldn't easily find a definitive answer. If the Inport card works, Logitech mouse should work with it, but it doesn't, then I know that there is a problem with the mouse.

Logitech bus mouse should work with an InPort. I had a Logitech working with a machine that had an integrated InPort.

BitWrangler wrote on Yesterday, 22:12:

Logitech bus mouse should work with an InPort. I had a Logitech working with a machine that had an integrated InPort.

Thanks mate, good to know 👍