New gpu problems

[boiboi360]

Just installed a 6950 on my fairly old rig,
450w Asus psu
P5l 1394 mobo
E6600 2.4ghz processor
Previously using 6600gt pci e video card

After fitting in, during boot up, the computer can't make it past the bios page, and sometimes just shows cmos checksum bad, never been able to reach even the windows loading screen since fitting in the 6950, I then reverted back to my 6600gt and everything was back to normal, is this a case of insufficient power?

 

[syahzwan]

450 watt enough to power a 6950 ? 550 watt am i right ?

 

[dinosau4]

PowerColor Official Website - Graphics, Cases, Power Supply -- PowerColor HD6950 2GB GDDD5

Seems like you need at least 500w to power it, but i'd recommend at least 550 or even 620w

 

[boiboi360]

So it's Definetely psu problem? I'm getting a new one this week, just worried that this may be caused by other faulty hardware

 

[fockyerdod3r]

In theory that gpu and your whole system take less than 450w, I think your psu degrade already.