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Ive had this board around for sometime. made a few attempts to google n id it with little luck. Figured maybe soome of the members might know something. The 486DX processor legs appears to be soldered to a socket thats solderedt to the board. Only numbers that I can find on it anywhere is "US4386A2" on a corner. Has 8 sticks of 30 pin fpm ram?
http://i249.photobucket.com/albums/g...pshdiorreo.jpg
http://i249.photobucket.com/albums/g...psdgwazdjp.jpg
...anything on the back?
no sir. nptta thing.
Fire it up on the bench and look at the bios screen. Google the bios version and maybe it will tell you the motherboard id.
This is the closest I could find for you....and it is pretty close, but there is a bit different 16/32 bit slot setup. The link does say the manufacturer was QDI
US 3486 MCA Bus Motherboard
that should get some assemblance of layout, jumper settings etc. Just use the info to do a bit more research for this particular model. Sorry it is not exact, but it is pretty **** close.
"fire it up on the bench"... haaa I wish I were that astute :)... THANKS webuy'.. more than I had to work with :)
Whats so diffucult? its complete. Hook a power supply and any stock pci vid card to it. And jumper the ps on. Take five mins.Quote:
Originally Posted by grouchyolddude
You can get a pci vid card off of ebay for 10 or less. And they actually do make adapters to convert the norm stand of 20/24 pin psu to the atx standard this is.
So I lead you to the water, now your choice to drink lmao. But if it wont run its nothign more than wall art or coversation piece. Unless you scam people buy selling as untested and for parts knowing its bad, which I dont condone
You would need either an ISA or VLB video card to test that board NOT PCIE!
Looks like an unidentified hybrid board. You can see pinholes for a 386 CPU and 387 FPU that were not attached. The 486 CPU is probably not soldered to the socket, but you need a special pry bar made for CPUs to remove it without making a mess (ZIF sockets were not out yet).
How much did you want for it?
I didnt say pcie or pci express. I said PCI which it appears this board has to slots
My bad didnt realize i linked to a pcix card, doign twenty things at once.
Elsa Gloria Synergy 8 Vivo KJGP2VIVO PCI Video Card 30405 8MB 2D 3D | eBay
That will work for example pci
NOT PCI either!
dude it has 32bit MCA Local Bus slot and 16bit ISA slots. FURTHER, even if not tested, it CAN be sold just fine on Ebay. You just list it untested...that IS NOT A SCAM and I would be offended if you suggested I did it that way. Not many people have the old power supplies NOR cards that would work....hell he MIGHT not even have the correct monitor to hook it up (ie the connector). I didn't look at what connector it used. I have sold things untested and frankly, I am not ashamed one bit...I just declared it as such.
Now, even testing might not even be worth the time or effort. I have not looked at the going rate for functioning 486 MB's. If I am getting $50 for it and have find all that stuff...ummm no thanks...sold as untested and move on. If $500, then ok, do the legwork. I have several old CPU's here. My buddy worked on computers for many years...they PROBABLY work as he pulled them from working machines. I don't have systems to test, nor will I go to the trouble of doing that. I MIGHT sell them as untested, not sure yet. If I do, I will put a marker on it and offer a 72 hour return policy...which I never offer returns otherwise. Bet I check and compare the pics of the chip where someone doesn't send me a different one.
Anyways, thought I would throw that out there as the post READ like it was an offhanded shot if it was sold untested. IMO of course.
Just to clarify MCA bus is proprietary to IBM and a couple very rare clones and this board does not have MCA.
That motherboard has ISA slots and a couple VESA LOCAL BUS slots (also known as VLB) that are ISA slots with 32 bit extension slot inline.
you guys are mostly talkin waaay over my head. Sorry :P I do occasionally sell as "untested" on fleabay. BUT Ive never sold something as such 'knowing' it doesnt work. No harm, scam or foul in that IMO. Im not setup to test most items. I will plug in n test a complete tower to boot to bios before selling any parts as tested/working. I also mark parts to avoid fraudulent returns, and state that in listings.
for the over 50 crowd that was a bewildering conversation....but i think i see some silver memory sticks on the bottom right of the first picture...the oldest set of computers i found had those silver ram sticks...were they more common back 1995 or so?
Yes, there were a fair amount of silver ram. I do not recall why, but I am betting the temps didn't run as high.Quote:
Originally Posted by gus4113
8 sticks of silver ram. :) I think I read the 486 came out in 1989 err 90. from my research, Im guessing the board is an early 90s model.Quote:
Originally Posted by gus4113
Yup Gus, Im that "over 50 crowd" :P
That would be tin plated RAM not silver correct? I only recall tin plated and gold plated RAM back then, and when you used gold plated on tin RAM sockets you might get corrosion.
Anyway why the 50 age cutoff? I am 47 and used computers back then.
I had a "web tv" box back in the 90s.
That's what I started with was a webt back when i was 18 in 98. I loved the thing. Even did some hacking webtv things to make it go into demo mode and such. Built websites with it, on and on. Then in 2005 rented a computer from a rental store. After paying exorbitant weekly fees, decided to build a computer. It was all plug and play, component based just like working on a car. I was a mechanic so came natural. I'm such a nerd I put a 32" hdtv i fixed from the trash in my bathroom for watching while soaking in the tub or taking the am crap!! I even fixed a broken laptop and made it headless (no screen) to plug into the tv for netflix and what not. Works awsome. Sorry if i said the wrong thing on the video card. Was a quick glance although I would teach yaself mighty quick on how to hook bare boards up for testing. There is still a market even for socket 7 boards as much as 150 and up. Just last year sold 5 socket 7 boards tested with picture proof of it fired up on the bench for 75 a piece and one tyan dual socket p3 slot board server for 200 that went to europe.Quote:
Originally Posted by grouchyolddude
i graduated high school 1979 and nobody had a computer....i heard they had them at the engineering college..drexel u....in the 80's they did start to catch on....cable tv was just starting too..mtv videos and espn...sports on tv during the day!!!! i was just starting to scrap...prices were low but contractors would leave copper or aluminum behind...wasnt worth it...and a lot of people werent doing it like they do now
:-/ after several very thorough inspections searching for identifying numbers, I found this...
http://i249.photobucket.com/albums/g...ps3kpyitwk.jpg[/URL]
I had a look thru my motherboards with the RCA plugs on them, and did not find a identical board.
There were two that were very close looking. One of them I have left everything still on it.
It had the same CPU, but a 'turbo' version with some smd capacitors soldered to its surface and a Ali heatsink over that.
I googled imaged for a pic but cannot find one.
I only have one of these CPU so I left the board intact, I have about ten of those brown/goldish RCA socket boards, and a few green ones too.
And a CPU on a fibreglass board with a plastic CPU on it.
this board has a smal al heatsink as well. glued on. Ive ound a few of these same cpu .. but never a "turbo" model :)
So what was the best offer?
It sold for $50.
A bit higher then scrap ;)
if Ive learned anything here over the last few years, its 'run it across ebay search" before scrappin it :)Quote:
Originally Posted by unknownk
Ah, found it. The turbo chip is actually a 'Overdrive' chip
https://encrypted-tbn1.gstatic.com/i...9bjTBqXPUvxbNQ
It comes from a board # GA-486VM rev.0. Serial#13443Y. 1993 with a Amibios 486DX bios AA3825527 (1992)
The '486 on fibreglass CPU' is a Intel i486 SX. KU80486sx-25. C3180320. Sx683. Intel ©1989
The other interesting boards I have are a,
OPTi. p/n 65G4187. EC D26208H PCB ver2.22 . its odd because it has a very long 60 pin slot for a gold fingered board and a large CPU socket.
Next up,
Mitzi R241A437A1(that's on the rear side) top side R927A2350.
This slots into a case and has a small onboard CPU MB15524 8630 Y13
and 3 Gold faced windowed RAM.
With a D8085AC chip,
a MBL8051AH 127. F8320. 8631 z04, ntel'82 - fujitsu'84 chip (long with a embossed line on it)
MB8464-15L, 8525 R72, BA chip, same line embossed.
The last board.
Has a big 499 CPU socket, the CPU has a Gold cap with two bolts sticking out, its broken though.
O5/98. PN:10008299. C1. SN: D04308. ASM.PCBA AXP ,533MHZ
P/N 10021249
(I had to edit because I invoked a smiley on the 2nd last line @ SN:DO4308. )