pc wont load vista or windows 7

[duckster180]

Hello i have a problem with my pc,,,it was working great running vista ultimate on it...All i have done is swapped the pc into a new case now it will not load vista from harddrive freezes at the green microsoft loading window,,,It will also not reinstall vista from the disc it freezes in exact same place,,,windows 7 will no longer install from disc this freezes at the point were you select drive to install to....All i can install on it is xp..I havn`t touched anything in bios or altered any connection,,I have seen lots of problems with vista on different forums any help would be appreciated.....

Mother board is Gigabyte ga-ma78gpm-d2sh
4gb ddr2 ocz memory
athlon 64x2 6400+ cpu
850watt artic psu

Any help please thanks

[Snh]

Check hdd connection, try to run windows in safe mode. If problem still remains try to reset bios.

[duckster180]

hi thanks checked all connections they are fine but even if i unplug harddrives disc still wont load at all,,ive tried reloading defaults up in bios and also best performance in bios still get same problem

[Snh]

Reset bios using pins on mainboard (read pcb manual) with bios battery removing. But first START WINSHIT IN SAFE MODE. Tap and hold F8 while booting, when options appears choose safe mode. If wont help try to repair installation. If still wont help format then

[cunny]

Try removing a dimm of ram. Then the other if that don't work.

If you boot from cd/dvd does it still freeze? If so try swapping the hdd lead sata or ide for a spare

[rg66]

This has happened to me a few times. Sometimes a RAM issue as Cunny said, but if this doesn't work, take it apart and assemble it out of the case and try. I do it on an old MB box. Sometimes the Mboard gets shorted or twisted a bit.

[Cod3waX]

First Test Swap Ur Power Supply

Second Use Minamal Ram 512MB or 1GB

Thrid Test Change the Graphics Card

if u have another machine put ur swap the hdd see if it boots

[Bann32]

Is it freezing at the same part and if so what is that part or is it intermittent.

I would suggest that if all you have done is put it in a new case it is shorting somewhere try checking the connections, failing that take it out the case and try to install it