Strange Problems- please help


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trendkill

Hy i am new on this site. I am from Croatia so my English might not be perfect.

So i bought new computer with this components:

CPU Intel Core2 Quad 2,83 1333FSB 12Mb Cache

MBO ASUS P5Q-E, iP45/ICH10R, DDR2, zvuk, S-ATA, 2xG-LAN, PCI-E, FW, s. 775

RAM CORSAIR 8GB 1066Mhz DDR2 DOMINATOR - 2Kits with 2 modules with 2gb

XFX ATI RADEON HD4770

HDD SAMSUNG F1 750GB S-ATA

POWER SUPPLY CORSAIR TX 650W

DVD RAM+/- RW PIONEER

ASUS CHASIS

M AUDIO DELTA 1010LT SOUND CARD

SAMSUNG T260HD LCD

And the probleems started it he same second I tried to run the computer for the first time. No signal note on my LCD, and computer was running. So i put my old graphic card ( some Gigabyte ATI ) and the BIOS was there. Than i put the graphic card from my friend ( Saphire ATI Radeon HD3550 or 4550 ) and again it worked just fine. Than i put my new XFX HD4770 in my friends computer and everything was fine. And when i connected my XFX 4770 in my computer--- NO SIGNAL again. So i went to the store and they tested the card then they told me that my power supply is maybe to weak ( cause at first it was Corsair 450w) so I took 650w. And as you guess nothing happened. Stil same old NO SIGNAL message. So I went in store again where they tested the whole computer and discover that my MBO ( it was some Gigabyte at first ) is not compatible with my graphic card,and that they gave me one module of DDR2 that was technicaly not working. So they gave me my new MBO from list above and replace my DDR2 module. So finaly I was happy to know that everything is OK. I turned on my computer, installed Windows 7 Enterprise and everything was fine.....UNTILL... at one point i could not run any exe file the message was something like Kernel Debuger dll32 problems. So i formated the drive and put my Windows 7 Ultimate this time and everything got back in normal... At least for 3 days. This time after my computer went to Log Of mode for longer than 30mins when I want to run it again.... NO SIGNAL again!!!!!

I shut it down by main switch cause that was the only solution. And when i turned it on again no signal... This time BIOS would not show on screen. After 30 mins I turned it on again and this time BIOS was there but when it need to show Windows NO SIGNAL. The next day it worked fine, then again after log off nothing, than once it did not have any sound......

So both Windows 7 Ultimate and Enterprise work just fine on other computers so that is not the problem. The monitor is showing NO SIGNAL message so it is not the problem.

And I just can not find what is wrong. So if someone can help me i woul be thankful.

Than you very much.

Edited by trendkill
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