Computer Won't Start

Computer: HP 7970

Memory newly installed:
1 set of 128mb RDRAMS
1 set 256mb RDRAMS (768 mb total).

After having installed the new memory modules, I plugged in my computer and pressed the power button. A loud noise came from inside the computer and I smelled something electrical burning. The computer did not start. Now, when I attempt to start my computer, it does absolutely nothing. No lights on the case, no movement of fans, no attempt to boot.

* Might it simply be my power supply, or could it be something else?
* Is my computer fried, or might it be ok if I replace the power supply?
* Did my installation of the memory have anything to do with this problem?

 

Sounds like you installed your memory backwards! Take out the memory you just added and you may be able to get it to boot. RDRAM also needs to be installed in matched pairs.

 

The chips are keyed. How could I have installed them backwards?

 

Maybe so, but I have seen people put them in backwards to where they were not seated all the way. Check yours to at least make sure they are seated correctly. Can you pinpoint the location of the burning smell from inside the case? Also, take them out and look at the connectors carefully for any scorching.

 

A strong smell lingers around the power supply.

 

No scorching on the connectors - they look brand new.

 

They were installed in this sequence: 256-128 256-128. This looked like the correct sequence in the manual, but now i'm not so sure.

 

You may be in luck then. Too bad HP/Compaq power supplies are proprietary. You will have to buy one from HP....get a bigger one because I think they only put a 200Watter in there.

 

Thanks for your help, Rockn!