I make a brief jump to a Slot1 motherboard, bought some time ago, and never tried, the card was sold as working, in the images there was a video BIOS screen, so actually it should be working, but I usually don't try them without looking well, and I discovered that:

1) there is a U1 pin that needs to be re-selded, it should be a transport damage, luckily, that the PIN is quite reachable, and therefore welding it should be simple, I don't know what problems it can create, the chip is branded GD75232, and it seems somehow connected to the COM1, so it is not essential for the operation of the MB, but it could be important, for the operation of the COM1 port, which is usually connected to a serial mouse 🖱, in this card there is the possibility of connecting a PS/2 port for the mouse 🖱, but a special bracket provided is needed With the motherboard, which I don't have, I only have the one for the audio and the GAME port.

2) Known of the small 100uF 16V electrolytic capacitors, with a slight swelling, it is barely visible, but in case of problems, they would be the first candidates for replacement, after all the quality of these, is soon clear, the brand is LUXON, I let you imagine the origin and the quality.

3) On the NB chipset, there is no heatsink, I don't know if it was like that, or if it was removed, it may not be necessary the FSB is 66 MHz, but you can also select 100 MHz, at this frequency instead it could be useful, unfortunately it is not possible to install those of other motherboards, here there are no two holes (for the clips), the heatsink should be attached with a double-sided adhesive.

I forgot, the motherboard is (MB-686BXA1) equivalent to a PCCHIPS M725 REV:1.2, AT format for Intel Slot1 CPU, it has an ATX connector (in addition to the AT), there are three SDRAM sockets, and regarding the slots, there is an AGP three PCI and two ISA, you could complain about the lack of some other slot, but there is integrated audio, and beyond the PS/2 port there are a couple of USB ports, on a special card called ATX form card.

This motherboard, so by today will be ready to be tested with an Intel PII 300, initially with a VGA PCI, and later with an AGP, then if there is no operating problem, I should expand the RAM, and find a 2X AGP video card suitable for the period of this PC, which should be from 1998, plus a sufficient RAM supply to make it work at its best.