New Computer Power Supply Questions

Thermaltake Litepower 500w atx12v power...
May 3, 2012 at 03:06:42
Specs: Windows 7, Intel Core i5 2500K @3.3ghz
I was thinking of upgrading my computer completely, CPU, Motherboard, Video Card.

I was wondering if i would need a new powersupply.

My new rig to buy:
Intel Core i7 3820 CPU
Gigabyte x79 UD3 MB
Sapphire 6950 2GB FleX Edition
(i have everything else, case, psu, hdds...etc)

My current power supply is a ThermalTake Litepower 600W ATX non-modular edition.
Would it be able to power all of this new hardware?
If not what would be a good, cheap alternative?

P.S: I have i SSD and 2 HDD's

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May 3, 2012 at 04:11:14
good system, not sure about ur current power supply
check this one
if u could tell us the amps of the 12V rails on ur current power supply thus we can know if its good enough or not, i googled it and found lots of similar models so if u can please specify which on u got

computers are a second home

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May 3, 2012 at 04:54:36
Specs look good. I'm guessing it will be OK.

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May 3, 2012 at 08:21:06
As stated above by riider, your PSU should be fine. Your PSU has 2 +12V rails. Not sure which one powers the CPU and which the graphics but your 6950 doesn't appear to pull too much power. See the second link below for power numbers for a bare bones system with a 6950 included. There are numbers for graphics at idle and at full power.

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May 3, 2012 at 10:17:30
looks like it has 12V 25A and 12V 20 A thats the link that riider provided, it should be enough, but make sure u know which one to power the cpu with and which one the gpu, as otherhill mentioned and its important, ur HD 6950 is power friendly so ur good just make sure u dont forget the 6 pin power connector for the video card

computers are a second home

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May 3, 2012 at 10:38:58
OtheHill's second link refers to a real world test of how much power a system with a 6950 card installed draws in total from the power supply - 297 watts max - , however, there's a statement before the results...

"So while the system might draw 400 watts in our test system, placing it into your own PC with a number of other items, the draw is going to be higher. "

However, hard drives draw very little current, and even if your mboard and cpu and other components draw more current, your present power supply model will still handle whatever that is fine.

What AMD says.....

AMD Radeon™ HD 6950 Graphics

System Requirements

■500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended
■Certified power supplies are recommended. Refer to for a list of Certified products
■Minimum 1GB of system memory

Litepower 600W

Max power 500W
Peak power 600W

one 6+2 pin PCI-E connector

Your power supply model was not designed to have 600 watts drawn from it continuously, but 500 watts can be drawn from it continuously.

In most if not all cases, the max capacity rating of the PS is an intermittent rating. It's recommended that you do not load your PS to any more that 80% of that rating if you are going to be using something that puts a constant load on it, such as playing a recent game for hours on end.

You need to buy a suitable a wiring adapter for the second power socket on the 6950 card.
They're usually easily available locally from places that have lots of computers parts.

You need one that has two molex connectors on one end, one pin PCI-E connector on the other end.

E.g. like this one:

DO NOT buy a wiring adapter that has one PCI-E 6 pin connector on one end (that plugs into the one 6 pin connector coming from the power supply) and two PCI-E 6 pin connectors on the other end (that plug into the two sockets on the card.
That can't supply enough current to the 6950 card.

Warranty: 2 years

Better power supply models have a three year, five year, or a few have a lifetime, warranty.

Your PS fan may have two sleeve bearings, or one sleeve bearing, one ball bearing, and be more likely to cause you problems sooner than a fan that has two ball bearings or two better bearings
The specs don't specfiy that
If there is printing on the label on the center of the fan you can see from the outside that may say what type of bearings it has . If says ball bearing without an s, it probably has one sleeve bearing, one ball bearing.

If it has two sleeve bearings, or one sleeve bearing, one ball bearing, occaisionally make sure the fan is actually pushing air out of the back of the case where the PS is - the fan may stop spinning eventually and if it does, if you didn't notice that in time, the power supply will overheat and damage itself. If you need to, replace the fan with a case fan that has two ball bearings or better bearings that has three wires connected to a 3 pin plug that you can plug into a spare 3 or 4 pin fan header on the mboard (if you have one) so that you can monitor it's rpm.


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