Need Help!- Power supply plug HELP!!!!

[ChipKing]

I have a 1993 V2xt that I removed the card rack and had a new battery put in it. I swear I documented how the power supply plug went into the board but now I am in doubt!! The power supply plugs are labeled p8 (containing the 12v lines) and p9 (having the 5 volt lines). When I plugged them in the way I thought they came out ....nothing. I unplug the top plug - p8 - and the hard dive boots and the monitor comes on and it is kind of alive. I am scared to switch the plugs as fearful of letting smoke out. I cannot find anything that says what plug goes into what socket!!!

ANY help is great!!!!! Thank you!!!

[amishx64]

It's just an old motherboard, right?
If so, I think that they all have the same connection order: P8 then P9 left to right with the guide in the back and the edge of the mobo closest to you.

They should only fin in one way anyway. P8 should not be able to plug into the P9 spot in I remember correctly on older motherboards.



A way to test:

Make sure everything is off.
On P connector location on the motherboard, take a multimeter and set it to the resistance setting. Count from the farthest right pin (that pin being pin #1) left to pins 5 & 6. Touch the two leads on these two pins. IF the meter reads 0 ohms that means that connector P8 goes there. IF not, that does NOT NOT NOT NOT NOT NOT NOT NOT mean connector P9 goes there. The same should be true (0 ohms) when starting from the far left pin and counting right to pin 5 & 6, where P9 may be placed.



I hope that helps.

[ChipKing]

Thanks for help! I had them right...just didn't take right away....but thanks for the diagrams, mine was the lower one.

[amishx64]

Originally Posted by ChipKing Thanks for help! I had them right...just didn't take right away....but thanks for the diagrams, mine was the lower one.

No problem ChipKing. Glad to have helped!