Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > How To Determin If PSU Is Too Weak

How To Determin If PSU Is Too Weak

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - How To Determin If PSU Is Too Weak

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jamespage17   10-29-2009 at 10:46:04 PM

Specs-
Intel Core 2 Quad Q6600 OC'd 3.42Ghz.
XFX 780i Motherboard.
Kingston HyperX RAM 1066Mhz.
Zotac GTX260 216 Edition.
Corsair 450W VX Power Supply.
Western Digital Blue 320GB Hard Drive.
Antec 900 Gamers Case.
Arctic Cooling Freezer Pro 7.
DVD/R Drive.
5 Fans

What is the best way to determin if my PSU isn't strong enough. The problem is that my games lock up.

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Silver CPUs badge JohnnyLucky   10-29-2009 at 11:59:59 PM
- 0 +

The official recommendation is for a 500 watt power supply with 36 amps on the 12 volt rail and two 75 watt, 6 pin PCI-e video power connections.

The Corsair VX450 is rated at 33 amps on the 12 volt rail and has just one 75 watt, 6 pin PCI-e power cable.

I know the GTX260 usually comes with a molex to 6 pin adapter so you could in theory convert two molex connections on the power supply to one 6 pin PCI-e connection.

There have been previous posts on this forum indicating some users have been able to run the GTX 260 using the VX450. A lot would depend on the configuration of the rest of the system and which games are played.

My best advice would be to consider getting a new power supply.

Message quoted 1 times
Reply to JohnnyLucky
jamespage17   10-30-2009 at 11:38:02 AM
- 0 +

JohnnyLucky wrote :

The official recommendation is for a 500 watt power supply with 36 amps on the 12 volt rail and two 75 watt, 6 pin PCI-e video power connections.

The Corsair VX450 is rated at 33 amps on the 12 volt rail and has just one 75 watt, 6 pin PCI-e power cable.

I know the GTX260 usually comes with a molex to 6 pin adapter so you could in theory convert two molex connections on the power supply to one 6 pin PCI-e connection.

There have been previous posts on this forum indicating some users have been able to run the GTX 260 using the VX450. A lot would depend on the configuration of the rest of the system and which games are played.

My best advice would be to consider getting a new power supply.


Yeah i think im leaning that way, thanks for the usefull facts.

Reply to jamespage17
cyberkuberiah   10-30-2009 at 04:03:42 PM
- 0 +

you would have been fine with even a corsair 550vx , but now if ur gettin a new one get a tx750 , they are 120 on newegg ! and will handle even sli/xfire with ease for future .

Reply to cyberkuberiah
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