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Upgrading Video Card and need to know if I should upgrade my PSU


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3 replies to this topic

#1 Мєηιcє

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Posted 02 January 2010 - 03:55 AM

So I've had my computer for a little over a year and a half now, custom built. I have managed to get together some money and am looking to upgrade my video card to a newer one, and was wondering whether my current power supply would still handle it, or whether I will need to purchase a new one too.

My current specs are:

CPU: 2.4Ghz Intel Quad Core #Q6600
Motherboard: Gigabyte LGA775
RAM: Corsair 2x 2GB DDR2-800
Video Card: Gigabyte 8800GT 512MB
Power Supply: Highpower (HPC500-G12S) 500W
HDD: 1x Western Digital 500GB and 1x Western Digital 1TB

I'm looking to get a Gigabyte GTX275 896MB Video Card. Would my current power supply still be able to power everything or should I really look at upgrading that too? and if so what should I upgrade to? Preferably something not too expensive though.

Edited by Мєηιcє, 02 January 2010 - 04:03 AM.


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#2 IrishGrimReaper

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Posted 02 January 2010 - 12:46 PM

It should be able to handle all that stuff.
|~|i7 920-D0@3.9Ghz|~|Noctua NH-U12P|~|P6T Deluxe V2|~|OcZ 3x2GB DDR3 1600Mhz|~|PNY GTX 275 898MB|~|Enermax Rev85+ 850 Watt|~|Xonar Dx 7.1|~|Lian Li P80|~|Samsung T220|~|G9|~|G11|~|Intel SSD X25M:G2-80GB|~|Windows 7 Home Premium 64|~|SteelSeries Siberia White|~|

#3 DJBPace07

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Posted 02 January 2010 - 06:43 PM

You should be able to handle it, though, make sure your case has enough room for a GTX 275 as it is 10.5 inches long.

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#4 ReviverSoft

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Posted 04 January 2010 - 03:13 PM

Well, the manufacturer recommends alteast a 550W power supply for the GTX 275.

According to various tests, the GTX 275 draws around 180W at idle and around 320W under load.
It clearly is power hungry compared to the ATI cards it competes with.

You also need to determine how much power it draws from the 12V rail.

EDIT: Here's the stated power requirements:

- Two 6-pin PCI Express supplementary power connectors
- Minimum 550W or greater system power supply (with a minimum 12V current rating of 40A)


So I would recommend a decent 600W (+) PSU for your system.

Edited by ReviverSoft, 04 January 2010 - 03:29 PM.

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