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500W Power Supply Capacity

by penti01 / June 14, 2007 7:02 PM PDT

Currently i have this configuration for my desktop:

Intel P915GAV mobo
Pentium 4 3.0 GHz
1 x 320 GB 7200rpm HDD
GeForce 6200 TC GPU
1 x DVD-RW
1 x DVD-Rom (Optical Drives are connected via Y-cable splitter (power))
500W Power Supply

I'm planning to upgrade my GPU to a GeForce 7900GS and ADD another 320 GB HDD... both these need to be directly connected to the power supply, meaning i'm going to use another 2 Y-cable splitter for them. is my power supply going to handle all these? And i am a heavy computer user... 24x7 use of PC and maybe an 8 hour rest every week or two...

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If cooling is in great shape.
by R. Proffitt Forum moderator / June 14, 2007 10:04 PM PDT

I think it will be fine. My kid has a similar setup with similar power supply.


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Single Fan
by penti01 / June 14, 2007 10:19 PM PDT

right now, my mobo temperature monitor already goes up to high/critical as it is... i only have a single fan from my generic ATX case... how would it do if i just completely remove my side case? i don't have an option for liquid cooling coz it's not available in my country...

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Yes, we leave the case cover off. Why?
by R. Proffitt Forum moderator / June 14, 2007 10:26 PM PDT
In reply to: Single Fan

I haven't taken the time to punch a big hold in the case cover yet.

Good workaround.


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What cooling do you use?
by penti01 / June 14, 2007 10:30 PM PDT

you said it's ok if cooling is great... if i leave my case off, i would have any fan (except for the power supply fan), but i would have a big hole... you think this is good enough?

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sorry, typo
by penti01 / June 14, 2007 10:35 PM PDT

...if i leave my case off, i WOULDN'T have any fan (except for the power supply fan)...

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by R. Proffitt Forum moderator / June 14, 2007 10:41 PM PDT
In reply to: sorry, typo

Should be fine.

In fact I'd pull the case cover now since the high temps age the parts faster.


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thanks again
by penti01 / June 14, 2007 11:06 PM PDT
In reply to: SBF

you're good! are you a computer engineer or something?

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Something like that.
by R. Proffitt Forum moderator / June 14, 2007 11:15 PM PDT
In reply to: thanks again
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Home fans
by Willy / June 15, 2007 1:34 AM PDT

Use an AC desk personal 6in. fan or a "clamp-on" fan to direct airflow into the open system case. I've done this for yrs. when the old home is too hot and want to cool the system. I can probably use typical 120mm fans with a mtrbd./psu connection but the household fan does just fine and lessen the psu for that. When it gets real hot inside the house a 10in. fan is a back-up. Yeah, I don't live in a A/C cooled home, but for the bedroom. Sad

tada -----Willy Happy

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