PSU/Video card upgrade!

TheStallion

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Sep 4, 2009
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I just bought the Gateway SX2800 and I was considering upgrading a few things for better gaming. Because it is a slimline computer I'm not sure on what to do. I was planning on buying the 9600GT low-profile card, but i was concerned about the power supply. so, i was wondering if i could get any recommendations on what to do for that card and psu. I dont know what amount of wattage i should get or what psu's fit in the slimline models. if anyone has any ideas for me that would be great!

Thanks!

p.s. i believe the current power supply on the pc is 220W
 
Solution
The 9600GT does not use very much power. I checked a few references. The card uses between 26 and 61 watts. A complete pc system with a 9600GT will draw a combined total between 30 and 85 watts at the electrical wall outlet and between 5.5 and 7.2 amps on the 12 volt rail. The numbers will vary a little bit depending on which version of the card you have.

Is there a label on your psu with the wattage and amperage information?

The 9600GT does not use very much power. I checked a few references. The card uses between 26 and 61 watts. A complete pc system with a 9600GT will draw a combined total between 30 and 85 watts at the electrical wall outlet and between 5.5 and 7.2 amps on the 12 volt rail. The numbers will vary a little bit depending on which version of the card you have.

Is there a label on your psu with the wattage and amperage information?

 
Solution

TheStallion

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This is the model I was going to get: http://www.newegg.com/Product/Prod [...] 6814162016

I don't see anything on the outside, should open my case to look for that information, I researched it and couldnt find anything on amperage.
I know the max wattage is 220
 

TheStallion

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also on the side there was a label that reads Rating: 100-127/220-240Vac, 6/3A 60/50hz. not sure if this is significant, im new to working with power supplies. thanks for being patient
 

TheStallion

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Yea, there was a label, but im not sure if i got the right numbers. I believe it says the max is 13 or 14A
 

Gulli

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It's not a power hungry system, but 7.2 amps on the 12V rail is ridiculous, the TDP of his Q8200 CPU alone is 95W (8 amps), so no, a 220W PSU won't be enough, go for the Coolermaster extreme power 390W instead, they're cheap and will do the job.
 

Gulli

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Those links only count the power consumption of the graphics card, to run a PC, your graphics card, cpu, hard drive, fans and DVD drive all need juice from the 12V rail.
So let's go for a worst case scenario: 100% graphics load + 100% cpu load + active hard drive + spinning DVD drive, so for the Gateway system with Q8200 and 9600GT we get:

60W + 95W + 10W + 5W + 15W = 185W, we want to stay under 80% of maximum 12V rail load, so (185W/8)*10 ~ 230W needed on the 12V rail.

In reality, the DVD drive won't be spinning up a lot during load, and when it does it will stay under 100% of maximum 12V rail load, so let's disregard that one: (170W/8)*10 ~ 210W on the 12V rail (the Coolermaster extreme power 390W has 216W on the 12V rail.)

Now, I'm not saying a weaker PSU won't get you on the desktop, but don't be surprised if the PC shuts down during benchmarks or even heavy gaming.
 

TheStallion

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okay, so in the case that i would need a psu upgrade, what should i get for my slimline case? Im going to wait until i install the card and see what happens when I am gaming.