power supply ?

kayliss1011 · 30 Apr 2008 at 22:02

hi ive got a tagan tg 420-uo1 power supply 22a 12v but i want to buy an 8800gt now ive seen on sever al forums mimimum spec is 400w 22 a on 12v
but all the manafacturers websites seem to say i need 450w+ 26a on 12v.anyone know if i can run an 8800gt on my psu as i cant afford to upgrade both gfx and psu

semi-pro waster · 30 Apr 2008 at 22:22

It should just about cope although that will partly depend on what else you have in your system. Manufacturers tend to over-estimate the requirements since they can't be sure that everyone will have decent PSUs so to be on the safe side they will aim higher on the basis that a poor 550w PSU probably is on a par with a decent 400w in terms of overall power supplied.

kayliss1011 · 30 Apr 2008 at 22:30

system is amd 64 4400+ dual processor
k8n sli (939 chipset)mobo
2x1g crucual ddr3200
win xp pro
im currently using an 8500 gt 512 i just want a temporary upgrade till i can get a new system later in the summer.
i just dont want to buy a new card and not be able to use it tell i get a new computer

semi-pro waster · 30 Apr 2008 at 22:33

Should be absolutely fine, there are people running fairly similar systems in terms of power requirements including the 8800GT on 400w PSUs.

kayliss1011 · 30 Apr 2008 at 22:40

great thx for the quick answers is there any 8800gt you recomend i dont have much cash to play with only £100ish

semi-pro waster · 30 Apr 2008 at 22:46

They are all built to a reference design so in theory they should all perform equally and clock as far, the differences come in the prices, coolers, bundles or warranty. In your case I'd just pick the cheapest 512mb one you can get your hands on.