Just got a clean, working 486 system. The motherboard has 3 pci [white] and 3 isa slots [black], but also has a brown isa slot between them that looks different from the others but it seems like isa cards would fit in it. What would that be and should I worry about it? 🤣
Look at it from the other side - does the brown one have more pins than the ISA slots? If yes, it might be EISA.
1+1=10
take a picture!
EISA?
Oddly placed cache slot?
Riser?
Where is the picture?
(Do these words even rhyme?)
Sounds like an EISA or PISA or OPTI LOCAL BUS slot.
EISA:
PISA:
The OPTI LOCAL BUS SLOT is identical with the EISA slot, I toasted an EISA mobo by using a Tseng ET4000 OPTI LOCAL BUS gfx card in it...I didn't know about OPTI LOCAL BUS at that time 😳
My retro computer stuff: https://lychee.jjserver.net/#16136303902327
thanks for the replies, i'll try to post a picture later
I really need to get my act together with digital cameras... However the unidentified slot seems to be a PISA slot. The board has printed on it AB PB4 Rev 1.3. and stason.org has rev 1.1 and 1.2 and both have a PISA between the PCI and ISA slots. What would this slot be used for? PISA seems to be for embedded/industrial computers, is this where some sort of backplane would slot in? Looks a bit awkward amongst the other slots.
wrote:I really need to get my act together with digital cameras... However the unidentified slot seems to be a PISA slot. The board has printed on it AB PB4 Rev 1.3. and stason.org has rev 1.1 and 1.2 and both have a PISA between the PCI and ISA slots. What would this slot be used for? PISA seems to be for embedded/industrial computers, is this where some sort of backplane would slot in? Looks a bit awkward amongst the other slots.
Had one of those Abit mobo's but it was dead on arrival
The PISA slot is used for single-board computers
Sort of the same stuff Asrock has on their mobo's
My retro computer stuff: https://lychee.jjserver.net/#16136303902327
wrote:Had one of those Abit mobo's but it was dead on arrival
I wish I could say the same for my opti 486 board; I've dug it out of the rubbish pile and wasted more hours today trying to get it working. I have a feeling the mobo is fine but the scsi card is dead, the ide card is half-dead, and both graphics cards i have are also half dead. fleabay ftw.
wrote:The PISA slot is used for single-board computers
Sort of the same stuff Asrock has on their mobo's
The asrock x58 super-computer that uses sli to pull together multiple gpu-based processors? Do you mean an sbc would work alongside the mainboard processor in the old abit board? Not that I'd experiment as it seems to work well as a win95 box. But I'd always assumed sbc's required a passive backplane.
