Asus P5Q Won't post properly after case swap

Hey guys, I'm giving my old parts to my sister so I swapped the components on my case over to her case directly (except for graphics card).

However, once I have everything plugged in, the computer powers but the fans stay at 100% speed and nothing shows up.

The monitor's power button flashes (as if on standby) and there's nothing I could do.

I've tried:
- Removing CMOS battery and plugging it back in
- Cmos clear via Jumper
- Taking out the whole mobo to make sure nothing is short circuiting the mobo
- Double checked connections between peripherals and mobo
- Removed the old IDE HDD that my sister has leaving only her SATA back up drive
- Removed memory modules and plugged them back in 1 by 1

I'm out of ideas guys. This mobo was 100% working when I plugged it out of my case. It's impossible that it would die all of a sudden. Please help!

Her specs:
- E8400 (my CPU)
- Asus P5Q (my Mobo)
- Nvidia 8800GT 512MB
- 2x2GB DDR2 1066 Ram (my ram)
- Corsair TX750 750W PSU
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  1. i have the same problem right now pretty much, had a faulty mobo replaced with one of these and now i cant get a monitor signal, tried everything i can think of and tested all my parts on bros mobo all work fine. im thinking maybe faulty mobo. which will be annoying as its fresh outta box.

    Intel Core 2 Duo E6850 "LGA775 Conroe" 3.00GHz
    OCZ 2GB (2x1GB) PC2-8500C5 1066MHz SLI-Ready Edition Dual Channel DDR2
    Asus GeForce 8800 GTX HTDP 768MB GDDR3
    OCZ StealthXStream 600w Silent SLI Ready ATX2 Power Supply
    Asus P5Q SE2 Intel P45 (Socket 775) DDR2 Motherboard
  2. actually do each step in the checklist below, don't just read them
  3. Make sure you used risers! shorting the board out will cause it to not post.
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