GA-7DX board, Missing-Relocated Pinouts

[aaaheavy]

Hi,
I've got a problem that I have never run into before. I recently acquired a Gigabyte GA-7DX early 2001 vintage motherboard.

I have it laying on my bench. I want to test it to see if it's any good, but the original front panel pinouts are gone on the board. There is another set of pins that look like they could be relocated pinouts. These pins are placed a little differently than the blank solder spots on the original.

The probelm I have is, I don't know where to plug in my ATX power switch, reset switch and LEDs. The manual only shows the pinouts that are missing.

I'm thinking this could be some prorietary board built by Gigabyte for some outfit like Dell or HP. I got a hold of it, board only, no docs or anything.

I was wondering if anyone knows anything about this board with the missing pinouts.

I have some pics I took, here are the links:

http://hovyo.com/misc/pinouts.gif
http://hovyo.com/misc/relocate.gif
http://hovyo.com/misc/closeup.gif

If you need more info or better pics let me know.
Any help or ideas on how to test this board,and use it, will be much appreciated.

Thanks, aaaheavy

 

[phsstpok]

If it is a Dell mobo don't even try testing it!

The Dell mobos use what look like a standard ATX power connector but the pinouts are completely wrong.

Here's a link

<A HREF="http://www.upgradingandrepairingpcs.com/articles/upgrade3_01_01.asp" target="_new">http://www.upgradingandrepairingpcs.com/articles/upgrade3_01_01.asp</A>

Notice that the "ATX" connector only carries (+/-)5 volt and (+/-)12 volt signals.

There is a secondary connector for the +3.3 volt signals.

If you connect a standard power supply to a Dell mobo you will blow the board and possibly damage the power supply.

Crashman knows a h*ll of lot more about this.

<b>56K, slow and steady does not win the race on internet!</b>

 

[aaaheavy]

phsstpok

I read the article. It's interesting stuff to know. My ATX Power plugin looks like any other, as stated in the article. I won't be plugging this in any time soon.

I don't know if the board is a Dell prorietary board or what. I'd like to find out though (any ideas how?).

If I'm lucky and it is NOT a Dell, then it would be nice to know if the board might still be usable.

Thanks for your interest and the warnings are heeded.

aaaheavy

 

[phsstpok]

Well, after re-reading your inital post I looked up the GA-7DX mobo. It seems like a geniune ATX mobo.

If it were a Dell mobo I would think it would have a proprietary model number.

I've never seen a Dell mobo for myself (actually I have seen plenty but I haven't looked closely at them). If you can find the auxilary power connector then you have a Dell mobo.

I would guess the auxillary connector would be near the primary but it's only a guess.

<b>56K, slow and steady does not win the race on internet!</b>

 

[aaaheavy]

Only 1 Power Connector. Here's a few more images to look at.

<A HREF="http://hovyo.com/misc/assy.gif" target="_new">http://hovyo.com/misc/assy.gif</A>
<A HREF="http://hovyo.com/misc/atxplug.gif" target="_new">http://hovyo.com/misc/atxplug.gif</A>
<A HREF="http://hovyo.com/misc/silk1.gif" target="_new">http://hovyo.com/misc/silk1.gif</A>

Now back to my initial problem.
How do I fire this thing up with the "relocated ???" Front Panel Header pins?


Thanks, aaaheavy

 

[phsstpok]

I know you can splice into the green wire on the ATX connector and connect it to one of the ground wires to jump start an ATX power supply. However, that's without a mobo.

Perhaps all you need is a momentary switch when used with a mobo but I don't really know this for a fact.

<b>56K, slow and steady does not win the race on internet!</b>