Sign in with
Sign up | Sign in
Your question

Powercolor hd 4850 512 on delta 250 watt PSU !

Last response: in Components
Share
May 3, 2010 10:52:59 AM

Hello, my pc:

pentium d 3ghz( o.c to 3.8ghz ),
asus p5kpl-am,
transcend 2gb dd2 800,
powercolor hd 4850 512 ddr3,
delta 250 watt (peak 300 watt) psu, samsung 250gb hard drive.

i don't no how is it possible to run hd 4850 on 250 watt psu even with overclocked cpu without any problem. with full load cpu temp around 70 and gpu temp around 80. i have played crysis warhead, dirt2, bad company2 with high settings ( 1024x748 ) and got 22-40 fps and i am playing them for 6 days( average 6 hours per day)and there is no problem i have faced. can anyone explain me how is it possible or there any problem?
May 3, 2010 12:02:17 PM

Actually it's possible. I'm running on a 300W PSU and no problem, I'm using a factory overclocking Radeon 4850. But obviously you're pushing the PSU near it's limit.

Sadly, in performance terms though you're severely limiting your video card by the resolution you're running and your processor as well.
m
0
l
May 3, 2010 12:08:07 PM

the important thing for psu is the ampere(current) delivered on +12V rails.you might be getting sufficient current(for the time being)to run 4850.there might be a case that your psu be under rated like those from corsair.
But dont rely on your psu and get one like corsair.
m
0
l
Related resources
May 5, 2010 6:20:35 AM

darksmart said:
the important thing for psu is the ampere(current) delivered on +12V rails.you might be getting sufficient current(for the time being)to run 4850.there might be a case that your psu be under rated like those from corsair.
But dont rely on your psu and get one like corsair.



my 250 watt PSU has 19A on +12V1 and +12V2 rails and max output 300 watt ( peak)
m
0
l
a b ) Power supply
May 5, 2010 7:14:11 AM

It doesn't hurt that its a Delta. They are good.

They usually OEM for others on the high end like channel well does. In fact, they are one of the 4 OEM's used by Antec (others being the aforementioned channel well, Seasonic, and Enhance) . And they are OBSESSED with perfect soldering.

Its also a safe bet that your using a Pentium D with Cedar mill core. 65nm. Less power usage.

There is a tendancy to overestimate power need by most people. None of my machines ever top 200 watts. Then again, I don't 3d game or overclock.
m
0
l
May 5, 2010 9:26:45 AM

ATI recommend around 450W but knock yourself out.
m
0
l
!