buying a power supply

December 28, 2010 at 21:56:48
Specs: win7 ultimate, 2.8amd/x4/6g/ram
would someone please post a good reply to this post a few days ago number is 72696. Also how do you know what size power supply to buy if youre upgrading your video card..tks alot

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December 28, 2010 at 22:51:30
If you wanted someone to respond to 72696, you simply make another post in it and it will be listed first.
I assume you mean this one:

Five days ago isn't a few days.
I will make a post in it, but others may respond as well.

Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD ! )
If that info is not in the ad for the video card, you can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity.

If you're a gamer...
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. In that case, you multiply the min capacity stated for the system with the particular video chipset on the card by 1.25 to find the min. capacity of the PS you should get.

If you need to get a PS with more capacity, you can usually replace it with any decent standard sized standard ATX PS.

Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.

Don't buy an el-cheapo PS.
See response 3 in this:

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December 29, 2010 at 05:44:49
"Also how do you know what size power supply to buy if youre upgrading your video card"

To start with, you need to post the make/model of your current power supply, along with the wattage & amperage specs for the +3.3v, +5v & +12v rails. This info can be found on the label on the side of the PSU.

Depending on which video card you plan on getting, you may not need to upgrade the power supply at all. General purpose/HTPC cards generally don't require much power, plus there are several lower end, energy efficient gaming cards available. We need more info regarding the purpose of the upgrade(s).

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December 29, 2010 at 05:54:06
As for your dual boot question, if the 2nd HDD already has XP installed on it & it's originally from another system, it will NOT boot in the new system. At the very least, XP will have to be reinstalled using the "repair install" method. And as was mentioned in your other thread, you may have problems due to the RAM amount being over what XP (32-bit) can support.

You may also need a boot manager program such as GAG:

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