motherboard connections

[cagey11]

the power supply went south, I bought new one & installed. have every thing hooked up BUT -- i had removed some

i did not have to & now don't know what goes where. bottom right hand corner is 9 pin header- 4 leads plug in there

power button, led, ect, ect. board is MPC61-HM  can anybody help? THANKS

[erico]

It would help if you provided an HP Product name or product number of your PC. 

Otherwise, it will not be easy for anyone to help you since you have handicapped us.

[cagey11]

Tried to keep it simple, sorry. Not a HP, just the same board that HP was using in its desktops at that time. My grandson

put it together while he was studying programming in school, now he is  working full time and lives in another state. 

busy counting his money to come help the old man. Board is MPC61-HM rev: 1.08, I think it is a Nettle board, no longer made.

Don't know what else to say -- may have to take it to a pro. Thanks for your time.

[erico]

The MCP61PM-HM (Nettle) motherboard was produced from an AMD reference design many years ago under contract for HP by Elitegroup Computer Systems (ECS). You can contact them  and ask them the question at the link below this line.

https://www.ecs.com.tw/ECSWebSite/Support/Technical_Support_List/EN/Technical%20Support

Be forewarned, socket AM2 was released in 2006 as a replacement for socket 939. The motherboard has been out of production for so many years. That is what will make it difficult to get information even from the manufacturer.

The DDR2 memory that the motherboard requires is also no longer being  manufactured or sold in stores or by online vendors.

Good luck. IMO, you would be better off purchasing a DIY motherboard for a current processor and starting from there. At least the required extra components are still manufactured.

This is how I would do it. Do this with your own safety in mind and don't plug anything in or out while power is on.

Since it is a really old mobo, I would start with the two-pin power connector. the polarity is not important since the power switch is a single-pole single-throw switch.. Try each pair until you find the pair that works. 

Once the PC will power on, you can do the same thing with the disk activity led. The polarity matters, but plugging it in with reverse polarity won't hurt anything. It will only work when you have figured out which of the remaining 6 possible paired connections is correct. power it on after each possible connection. When it flickers it means success.