upgrading power supply

waqmd · 03-02-2009, 10:37 PM

I have the HP pavilion m9040n PC with I think a 300W power supply. I want to install the ATI Radeon HD 3870 video card which needs a 450Watt power supply. What power supply upgrade do you recommend and is the computer designed to tolerate the heat generated etc? Any advice is deeply appreciated.
Thanks!

Mcninjaguy · 03-02-2009, 11:52 PM

a quality 750 watt or 650 watt will do fine

750w PSU
Corsair 750w
$120
after rebate $100
http://www.newegg.com/Product/Produc...82E16817139006

650w Corsair PSU
$100
after rebate $80
http://www.newegg.com/Product/Produc...82E16817139005

the 750watt PSU is a little overkill but its an option at least

you might want to think about replacing your case since its most likely poorly cooled and something like this will keep it cooler

Antec 300
$60
1 x 120mm front fan (sucking air in)
1 x 140mm top fan (blowing air out)
http://www.newegg.com/Product/Produc...82E16811129042

sethy666 · 03-03-2009, 04:55 PM

I agree with Mcninjaguy.

Id go a good quality named brand 600 - 750 watt for future proofing your system.

Remember you PSU is your system's workhorse - if your PSU is rubbish, so is your expensive rig.

Tumbleweed36 · 03-03-2009, 06:38 PM

If you are not planning on an immediate upgrade in the video card, the 650 he mentioned should be just fine and a 750 is kind of overkill to be quite honest IMHO.

03-02-2009, 10:37 PM	#1 (permalink)
waqmd Registered User Join Date: Mar 2009 Posts: 1 OS: vista	upgrading power supply I have the HP pavilion m9040n PC with I think a 300W power supply. I want to install the ATI Radeon HD 3870 video card which needs a 450Watt power supply. What power supply upgrade do you recommend and is the computer designed to tolerate the heat generated etc? Any advice is deeply appreciated. Thanks!

03-02-2009, 11:52 PM	#2 (permalink)
Mcninjaguy Temporarily Banned Join Date: Jun 2008 Location: Ottawa, Ontario, Canada Posts: 10,422 OS: Windows 7 Ultimate 64bit My System Blog Entries: 1	Re: upgrading power supply a quality 750 watt or 650 watt will do fine 750w PSU Corsair 750w $120 after rebate $100 http://www.newegg.com/Product/Produc...82E16817139006 650w Corsair PSU $100 after rebate $80 http://www.newegg.com/Product/Produc...82E16817139005 the 750watt PSU is a little overkill but its an option at least you might want to think about replacing your case since its most likely poorly cooled and something like this will keep it cooler Antec 300 $60 1 x 120mm front fan (sucking air in) 1 x 140mm top fan (blowing air out) http://www.newegg.com/Product/Produc...82E16811129042

03-03-2009, 04:55 PM	#3 (permalink)
sethy666 Registered User Join Date: Feb 2008 Location: Sydney, Australia Posts: 123 OS: Windows Vista Home Premium SP1 My System	Re: upgrading power supply I agree with Mcninjaguy. Id go a good quality named brand 600 - 750 watt for future proofing your system. Remember you PSU is your system's workhorse - if your PSU is rubbish, so is your expensive rig. __________________ Do YOU hear the voices too?!?

03-03-2009, 06:38 PM	#4 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,642 OS: XP Professional	Re: upgrading power supply If you are not planning on an immediate upgrade in the video card, the 650 he mentioned should be just fine and a 750 is kind of overkill to be quite honest IMHO. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.