Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Is 25A power supply enough for E2180 + one HDD + HD3850 or 9600GT?

Is 25A power supply enough for E2180 + one HDD + HD3850 or 9600GT?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Is 25A power supply enough for E2180 + one HDD + HD3850 or 9600GT?

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lukas333   06-23-2008 at 04:59:10 PM

Hi, I have Fotron ATX-350PNF power supply. It has 300W(25A) on two 12V rails (18A and 16A) + 130W on 3.3V (22A) and 5V (21A). I have read FAQ and looked on some PC power consumption graphs and it seems to me that it can run E2180 + one HDD + HD3850 or 9600GT without problems, what do you think?

BTW - if I understood FAQ correctly, some manufacturers would probably sell my power supply as 450W (or even 585,6W :heink: ), which is probably reason why ATI and NVIDIA recommends 450W for these cards, am I right?

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evongugg   06-23-2008 at 05:16:34 PM
- 0 +

You only need 20 amps on the 12v rails for the 3850 or 19 amps with the 9600GT.
Not all power supplies have the same 12v rails and configurations of computers can be very different. That is why ATI and Nvidia have to recommend higher power supplies.

------------------------------ Google is your friend and Bob's your uncle
 Reply to evongugg
aevm   06-23-2008 at 05:16:50 PM
- 0 +

It should be enough. Even the 8800GT should work, it has a 22A minimum requirement, and the 8800GT consumes more than the 9600GT.

Still, get yourself a nice PSU with 80% efficiency as soon as you can, OK? That fsp works at 70%, especially when pushed so close to its limit, so you're getting more heat and wasting electricity with it.

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lukas333   06-23-2008 at 07:00:22 PM
- 0 +

Thank you for answers. I have another question, how much power does average Core2D computer draw from 3.3V and 5V?

Message quoted 1 times
Reply to lukas333
bobwya   06-23-2008 at 10:24:12 PM
- 0 +

lukas333 wrote :

Thank you for answers. I have another question, how much power does average Core2D computer draw from 3.3V and 5V?



Can I refer you to:
http://www.extreme.outervision.com/psucalculator.jsp

Further info on the PSU:
http://www.badcaps.net/forum//show [...] 72e&t=5105

Further info on total system power consumption:
http://www.legitreviews.com/article/731/17/

Time to get a ATI 4850?? :sol:

Bob

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