Dropped PC, won't start.. burning smell.. psu?

[davies]

Hello,
I dropped my pc the other day (a 2005 Dell Dimension 3000 stock), and then when I would start it, it would turn off 2 seconds to 10 minutes later. when rebooted it would say 'turned off due to themal error" then one time it did some scan thing and said drive was dirty and did a long start up scan... then later I turned it on and smelt burning from the psu. i took it out and inspected it and it looked ok, put it back in now it won't even turn on and a orange light flashes. Is the problem that i need a new psu?
should i buy one on ebay, they are only $20. also is a dimesion 2100 psu the same as a 3000? b/c one is for sale that comes with other items i need.
thanks for the help! I'm pretty newbie to computers sorry...

 

[Tedster]

A lot of things could have happened. Reseat all cards, cables. Hard drives are subject to shock and given enough jolt can damage it permanently. See if there is anything rattling. Read the no p.o.s.t. guide in he guides forum.

PCs are delicate. A big enough drop can seriously damage components.