Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > enough power for me?
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jasmoe4   10-08-2005 at 10:17:31 PM

I'm going to be upgrading my system to replace both the motherboard and graphics card. Right now my rig is:
Asus A8N-Deluxe motherboard
GeForce FX 5800 graphics card
Audigy 2 Value sound card
2x Hard drives
DVD-RW burner
CD-RW burner

I'm going to be putting in (while keeping the hard drives, sound card, and optical drives):
Asus A8N-E motherboard
GeForce 7800GTX graphics card

My power supply is 400W and I'm wondering if it's going to be enough to power the new equipment as well as the rest of the parts.

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4ryan6   10-09-2005 at 04:29:05 AM
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<A HREF="http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=77529#77529" target="_new"> Check for yourself </A>

AMD XP 3200+ / Asus A7N8X-E Deluxe / Corsair XMS PC3200 1024mb LLC2 / ATI X850 Pro / SoundBlaster X-FI / 2 Seagate SATA 7200rpm/8mb / Plextor PX-716A DVDRW

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Crashman   10-09-2005 at 12:21:44 PM
- 0 +

Nobody can tell you, because 400W power supplies are capable of 200-460W constant load depending on manufacturer.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>

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Renegade87   10-09-2005 at 02:20:07 PM
- 0 +

I've seen this a hundred times. People link to this weak PSU calculator which only calculates wattage.

In order to properly select a PSU for your Rig, you need to know how many AMPs it will potentially draw on the +3.3v, +5v, and most importantly, the +12v Rails.

"The world ends when you're dead. As long as your breathing you got more punishment in store. Stand it like a man and give some back."

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4ryan6   10-09-2005 at 05:10:37 PM
- 0 +

The calculator is just to get you in the ballpark wattage wise, any other special requirements is really up to the individual to research themselves, do you want us to build the thing for them too?

<font color=blue>AMD XP 3200+ / Asus A7N8X-E Deluxe / Corsair XMS PC3200 1024mb LLC2 / ATI X850 Pro / SoundBlaster X-FI / 2 Seagate SATA 7200rpm/8mb / Plextor PX-716A DVDRW</font color=blue>

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fishmahn   10-10-2005 at 05:24:48 PM
- 0 +

Quote :

People link to this weak PSU calculator which only calculates wattage.


Point us to something better.

Mike.

<font color=blue>Outside of a dog, a book is man's best friend. Inside the dog its too dark to read.
-- Groucho Marx</font color=blue>

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94blue302gt   10-12-2005 at 11:03:09 PM
- 0 +

Should be enough power, you're not changing it THAT much. Shoot, I was running on a 250 watt for quite some time... well, for a couple of months... with the A/C vent on it at all times... and now i have a new Mobo, case, and PSU.
Lee

Everyone has a humble beginning...

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