tunester63 :
More info
Monitor used to come right on. I noticed after the new PSU went in it would take about 10 seconds for the monitor to start up. I just tried it again and I heard the HDD spool up and both DVD's lights came on but the monitor never did and the PC shut down (This was about 10-12 seconds into power up). I waited a few seconds and tried again and now it is running but monitor still takes a little bit to come on. Any chance the old (bad) PSU messed up the video card and that is causing the new problem?
VERY possible. as i have heard from many many experience PC builders, the PSU is the single most important component of the system. your trusting all your hardware's to a single piece of hardware the -PSU
in some cases the psu decides to fail, or naturally dies over long term usage,its possible that it can release high amounts of un-regulated current to anything that it is connected to. IE: surge. while it may or may not be the case of the video card, a short somewhere on the MB is far beyond my reach to help with since theres such an extreme amount of micro components. what you CAN try checking,is capacitors and resistors on the mobo itself. not always,but sometimes it can be easy to spot if an area got overloaded. worse case scenario, youd just need a new motherboard and possible replace anything that might of gotten fryed. the monitor issue is leading me to belive it just may be a mobo/gpu issue due to a surge. if possible id say try a trusted brand PSU that you know is already working, possibly borrow from a friend ect. im sorry to hear you having this issue. and wish the best of luck. reply if u have anything else to add or ask.