good day, before i start i would like to say english is not my native language so i might make some mistakes
4 months ago i tried to turn on my computer everything seemed fine but when i tried to turn on the monitor the screen would go on,but i did not get a signal to my screen,also the gpu fan ran at 100% every time i started the computer. i thought maybe the cable that goes from my gpu to my screen was broken so i changed it but the problem was still there.
so i tested with a different video card and i got a signal and it worked fine so i thought it had to be my video card that was causing this problem(it was an old nvidia8800gt)
so i got a new motherboard MSi p67a-c43
new 2x 4gig memory
and a new gpu ati 6950 twin frozr ii
the only thing i did not replace was my psu 600w because it was only 1 year old.
so it all worked fine for 4 months until now, i get the exact same problem again no signal on the monitor and the gpu runs on 100% speed.
i really don't know what to do at this point or what could cause this problem again.
some things that i think that could have caused it but I'm not sure.
since i build this new computer sometimes i would get a blue screen saying SYS_memory I'm not exactly sure about the exact message sometimes it was different, but it always started with sys_memory. this happened about 5 times.
something else that might have caused it is that my monitor is kind of old and when i want to turn it on
i had to hold the power switch like 30 seconds and the led would flash and eventually it would go on,could it be this is bad for my gpu or something?
a friend of mine also told me it could be my video card overheating but i never had any overheating problem with this new card,i don't overclock or anything like that it always worked fine without any problems
the problem is i threw away my old gpu ram etc so i can't really test anything(stupid i know)
so if anyone has any ideas or can help me with this problem so i can prevent it from happening again that would