Guide for Selecting a Power Supply

[knightlord22]

Hi. I have a slimline cpu ( hp compact  dc7700 Small Form Factor). At present it has an 240W psu and i need to upgrade it to 350-450W psu. Is there any part available for a it?

[Big_Dave]

Hi,

That would be a no.

[knightlord22]

Too bad!! thanks for the fast reply!

[Deathicism]

Hey all, I currently have the HP p7-1038. The computer came with a 250W PSU: dimensions: 5.9 x 5.5 x 3.4 (inches). I'm looking to upgrade so that I can replace the HD 6450 (absolute garbage). I was wondering if you could recommend a power supply that will fit my case, and hopefully be in the range from 550W-650W. I was also wondering if you know if a HD 6850 would be able to fit inside the case (lengthwise)? 

Thanks for any information, its greatly appreciated!

[Big_Dave]

Hi Deathicism,

Try a Corsair CX600.  Corsair is a quality power supply and the CX600 will be plenty for your needs.

The Sapphire HD6850 and HD6870 are both 8.5" in length and should fit.  The HD6870 might be the better buy.

Open up your PC and do some measuring in parallel with the PCI-E x16 slot to see how long of a video card will fit. The slot adjacent to the PCI-E x16 slot needs to be vacant. Look carefully at the motherboard and makes sure that components on the motherboard don't interfere with the installation of the video card.

These HP 'how-to" articles should be helpful.

[Deathicism]

Hey, thanks for the amazing response time. I've noticed that the CX 600 has a fan that's pointing up into the case. My computer's power supply is at the top back corner, is this going to be a problem with the fan blowing into the case?

[Big_Dave]

Hi,

Most power supplies can be mounted up or down depending on where the case air intake is located.

[snyder250]

hey got a queston for u guys. i bought a asus gtx 550 for my brother and i need help picking a power suply that will work on his p6754y. video card says minimum is 400 w so i was think like 430-450 w.

[Big_Dave]

Hi snyder250,

Look for a Corsair brand power supply. The CX430  would be the minimum.  The CX500 would be a better choice.

These HP 'how-to" articles should be helpful.

[KeithM]

Hi,  I am wanting to upgrade my video card and power supply if possible and advisable.

d5200t - Core 2 Quad Q9650  (3.0GHz /1333 MHz) 12 MB L2 cache; Quad Core, Radeon HD 4850, 8 GB Ram.  3 Hard drives, 460 watt PCU with external hard drive sometimes plugged in.  I also have a sound card and a camera docking station. 

 Want to upgrade to Radeon HD6850 and 650 watt power supply.

UPGRADE TO -CORSAIR Professional Series HX650 (CMPSU-650HX) 650W ATX12V v2.2 / EPS12V 2.91 SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply

&

 SAPPHIRE 100315L Radeon HD 6850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

  I thought I might be already pushing the limits of existing Power Supply.

 I want to upgrade those two components but not if it will not be adviseable.

 Thanks for any advice.

Keith

Edit-Reading other posts I thought I should add that I have 2 dvd drives.