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Fastest motherboard before atx

If you want the most badass AT motherboard ever created, check out the SuperMicro P6DGH. It's a full size AT board with support for dual Slot 1 processors up to 600MHz and up to 2GB of RAM. Has onboard Ultra2 SCSI, nine PCI slots, an AGP slot, two ISA slots, and an onboard Intel i960 I2O buffering system with up to 64MB of dedicated RAM. Some people have had success running it with 800+MHz Coppermines.

p6dgh.jpg
 
Now that is a serious motherboard ... and the large size keyboard connector is just absolutely perfect. This deserves a true PC AT case ...
 
It has an ATX connector, so I think that's more of a hybrid than an AT motherboard, still fantastic though. What is that one PCI slot with the arbitrary brown extension, a 64-bit PCI slot.. really early and different?
 
What is that one PCI slot with the arbitrary brown extension, a 64-bit PCI slot.. really early and different?
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No, that's for a special Adaptec RAID card... I've never actually seen one of the cards themselves, but it was supposed to be sort of an extension of the onboard SCSI functionality.

The thing I find curious about that motherboard is the SIMM slots, I can't figure out what they're for. To my knowledge the 440GX doesn't support EDO, didn't they drop that after the 440LX?
 
Old Thrashbarg said:
The thing I find curious about that motherboard is the SIMM slots, I can't figure out what they're for. To my knowledge the 440GX doesn't support EDO, didn't they drop that after the 440LX?
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I'm just guessing, not having any experience or reading the manual, but he said the i960 I2O processor supported up to 64MB of dedicated cache memory, so the simm slots are possibly to support that RAM.

Supermicro sure makes some nice boards though.
__
Trevor
 
The PCI slots on the upper side of the keyboard connector are quite useless you know. I have never seen an AT standard case with slots on both sides.
 
There *ARE* cards that don't need an exposed slot, you know. I have an IDE controller, for example, that I could easily take the case panel off of and put in a slot like that.
 
There *ARE* cards that don't need an exposed slot, you know. I have an IDE controller, for example, that I could easily take the case panel off of and put in a slot like that.
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Yeah, you could conceivably put it in there, but how would you support it? That's part of what the slot bracket does... help hold the card in place, keep it from sagging down. And with a bulky IDE cable (or two) attached, there'd definitely be some stresses at play. I guess you could mount the thing in a desktop-type case, but that's still not a very good solution compared to having the proper, and I'm assuming rather hard-to-find, case for it.
 
i could see how a board like that would be useful, i've even got the raid extension card, and YES it is an extension of the onboard, pretty much enables raid for the whole system. Ive seen that on a p2 and p3. AND a p-pro has that too
 
Tyan Tsunami a Slot 1 able to take a Pentium III CPU. 100MHz FSB They made a rare 1.0Ghz 100Mhz front side bus CPU that fits that board with the lastest bio's rev. I currently have that MB with the 850Mhz ver works great. If I could get a 1.0 for fair price I'd upgrade. You can also I've been told upgrade to a 1.1 with an adapter. The board only supports 100FSB CPU's.

framer
 
If you are truely looking for the fastest available baby-AT motherboard you should check out this link:

http://www.corvalent.com/02b_ind_boards/mb_855gme_at.shtml

This is an industrial motherboard, still in production. Very pricey but a lot faster than anything you are likely to find searching older designs.

It have everything on-board (video, NIC, audio) and will support current OS.

You will need to use an ATX power supply but everything else should fit fine.

Since this motherboard used Socket M it will not generate much heat.

Let me know what you think???
 
That motherboard looks awesome, the part that sais, request a quote is a tad scarry :)
 
ajerimez said:
I use mine in a SuperMicro SC-750S full-tower AT case (basically, the case that the board was designed for).

The brown connector is for an Adaptec RAIDport controller.
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~AWESOME MOTHERBOARD THERE~

I wonder if a brother could be lucky enough to get one cheap on evilbay...

:)
 
I did say this was an industrial motherboard, and you are guaranteed to be quoted a high price.
And you did say you wanted the fastest or best baby-AT motherboard.
What you get is a new board, that is extremely well made.
All-in-one design (video, NIC, sound, ISA slots, PCI slots, PATA [40-pin and 44-pin] and two SATA ports, and more.

Here is a link to the manual:
ftp://support.corvalent.com/GMEBT/DOCS/MN-GMEBT-01.pdf
Did I say it was pricey, yes.....
 
I've found adapters online for that, almost decided to build a custom dual computer with it, but scrapped the idea. There are also ATX->AT and AT->ATX adapters, so trying to hunt down an AT board is kinda silly since you can get the same experience with a PS/2->AT keyboard converter and an ATX->AT adapter.
 
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