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Toninhonanet
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Joined: 27 Apr 2006
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PostPosted: Thu Apr 27, 2006 11:15 am    Post subject: Can you help me? Reply with quote

Hi!
Im brazilian and I saw that this forum is the best of the internet about Motherboards and because of this I'm here.
I found a board that i think pertains a Compaq PC but i don't know if it's true.
The board description is:

* It's small with dimensions about 18X12 centimeters
* It has one 72pin memory slot, a 486 processor (I think)indentified in the board as VREG1CPU486.
* A Bios
* 3 ports (2 serials and one diferent, I think the diferent is a PS2 port, in the board this one is identified as keyboard
* The appearance of this is like a Video or Audio card.

Finally, we can see to numbers in the board, they are:
A50 94v-0

PCB Nº: 20100173

I have pictures of the board but i don't know how to post it here.
If someone wants to see the pictures, please give me your e-mail or sugest another way.


Thankfull,
Antônio.
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Copper
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Joined: 14 Jul 2003
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PostPosted: Thu Apr 27, 2006 12:11 pm    Post subject: Reply with quote

:mb_welcomeMB

you can post a picture of your motherboard using


www.uploadit.org
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Toninhonanet
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PostPosted: Thu Apr 27, 2006 3:34 pm    Post subject: Photos Reply with quote

http://br.geocities.com/sale804/S2020487.jpg
http://br.geocities.com/sale804/S2020488.jpg
http://br.geocities.com/sale804/S2020491.jpg
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Toninhonanet
Pilgrim
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Joined: 27 Apr 2006
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PostPosted: Thu May 04, 2006 3:58 pm    Post subject: Reply with quote

hey,
please, help me.
I need this answer to conclude a job in a friend's pc.
Thank you! crying
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evasive
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Joined: 06 May 2001
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PostPosted: Thu May 04, 2006 9:41 pm    Post subject: Reply with quote

Well, it is a CPU card for use with a passive backplane, that's something you find in industrial PCs, I don't know any Compaq industrial systems. So most likely it's not a Compaq board.

Where did the board come from?

I also see some barcoded stickers on this board, can you post the markings on those as well?
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Karlsweldt
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PostPosted: Sat May 13, 2006 6:47 am    Post subject: Reply with quote

All photos are of the same card? The second one shows the ports at the end.. possibly a 15-pin female port, and a 9-pin male port? That would be for video and a serial port, respectively. The small fan is atop the processor, possibly a 486 type, or a 386 type. The cards fit to a 16-bit ISA slot, and as noted by evasive would be a back-plane type. There may be FCC ID#s on the card.. those can be searched from Google for positive ID. Noting the battery on the card, it is a multi-function I/O and processor card. But there is no memory on it. That would be a separate card. If the center port has six pins, it most likely is the keyboard port. The black slots with pins at the top are the fdd, hdd and printer port connections.
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evasive
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PostPosted: Sat May 13, 2006 9:07 am    Post subject: Reply with quote

Quote:
But there is no memory on it.
on the far right there appears to be a SIMM slot...
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Karlsweldt
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PostPosted: Sun May 14, 2006 5:34 am    Post subject: Reply with quote

I did a 'quickie' retouch on the photos #2 and #3..
here they are.. but the quality just wasn't there for a crisp image.
Indeed there appears to be a SIMM slot at the inside end of the card!
Depending on the BIOS date, it could accept up to 8 Mb or 16 Mb of memory. evasive has sharp eyes!
That hanging power connector goes to a Molex lead from the PSU. There are two small white pin connectors near the power connector's merging on the card.. possibly for the front panel connections and maybe speaker? It should fire up, if still working, on its dedicated backplane mobo. Add some memory, 72-pin type. Have seen many of this type, but this is a new one. From the relative size of the card versus the fan and CPU socket, I'd venture a guess as being an AMD 486 /DX33 in the older 386 chip die configuration. Too small for a standard 486 chip size.


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evasive
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PostPosted: Sun May 14, 2006 7:00 am    Post subject: Reply with quote

Get a standard AT power supply and hook this thing up to one of the harddisk connectors. Connect a keyboard and a monitor. Put in a 4 MB 72-pin SIMM module as this will increase the chance the board will boot. Apply power and return the bios ID string shown at the bottom of the screen. It has a seperate power connector so it's most likely not fed from the ISA slot.
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