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Recomend Power supply for setup

L

liquidgeforce

Limp Gawd
Joined
Oct 10, 2004
Messages
210
Hey all, im in the process of building anew gaming rig. The specs are as followed....

Amd x2 4600+ 65w
GIGABYTE GA-MA69GM-S2H AM2
CORSAIR ValueSelect 2GB (2 x 1GB) 240-Pin DDR2 (maybe 4gb, havent decided)
320gb 7200rpm hdd
Thermaltake VF1000BWS
Geforce 8800gt (when its released, onboard until then)

The only problem im having is choosing a power supply. I havent built a rig in two years, and obviously alot has changed since then. ideally id like to spend under a hundred dollars, i know how important power supplys are so ill spend more if i have to, but i dont think i need that much power for this stuff, considering i wont be running sli and only 1 hdd. also id prefer modular, if thasts not a possibility ok, but id really, really prefer it, so modular and under a hundred dollars....thanks

edit: this one any good?
http://www.xoxide.com/hiper-power-supply-black.html
 
I like the corsair VX series, (disclaminer, just bought a VX520) good value for the money, but regardless you need to check the reviews on JonnyGuru or on the main page here so you know what you are getting. If you do not know how to make sense of the combined power ratings that should be on the label of any supply (if not, don't buy it) there are guides. You want the majority of your power on the +12.


The one you linked, not sufficient info. The question is, if I am pulling say 120W out of the +3.3 and +5 for motherboard misc power and drives etc. how much wattage can I then get out of the +12V rails. Look that supply up on newegg even if you don't buy there as they always have a shot of the ratings label.

From newegg.
WOW you picked the one damn supply that does not have a label shot, hell does it even have a label ?

Going to the Manuf site
http://www.hipergroup.com/English/products/hpu-4b580.html




.Output Load Regulation
.
+12V 1 & +12V 2 < 360 W
+3.3V & +5V < 280 W
+3.3V, +5V & +12V < 560 W.

less than 360W available on 12V rails, that sucks. Now I might not be reading this correctly, but I have doubts you will ever need that much on the +3.3 and +5, you are looking for a supply that puts out 100-150W on the +3 and +5 and the lions share on the +12 this supply has 360/560 or only 64% of its output on the +12, you want a supply with 80% of the usable output on the +12.

All that said, your stated power supply needs are not that great, and this supply would work fine. My personal opinion is that I do not like that supply for a $100 supply and would not have it, better out there for less or same money. I care not one bit, one way or the other for the cabling scheme I am only looking at the power delivery. You may want the cabling scheme and the value of that to you is not something I can take into account but it does not mean it is worthless. Its a fair supply, if the cabling is important to you it might be the supply for you.


As an example
http://www.newegg.com/Product/ShowI...ription=CORSAIR+CMPSU-520HX+520W+Power+Supply

140W on the +3.3 and +5, 480W on the +12 and round up to 25W on the -12 and +5 standby,

well the -12 and +5 standby are not pulling enough to matter and if the computer is up and running and not sleeping its even less so ignore them.

Combined total output is 520W

With this information we can now know that if we are pulling 120W out of the +3.3 and +5, we still have 520 total - 120 = 400W availble from the +12V. This supply is rated lower than that hipro but delivers more on the critical +12V rails used mainly by the CPU and video card.
480/520 = 92% of the supplies power is available on the +12. As you will always be pulling some +3.3 and +5, you will not get that full 480 W, but a hella lot more than the hipro and it shows the supply is designed for the new 12V hungry systems.

Now if AMD still uses heavy +5V or 3.3 V for powering the cpu (not messed with AMD since my still running NF7-s) , never mind. LOL>.<
 
you sir, are amazing. thank you for taking the time to write not only a recomendation, but a lesson in psu's as well. i not only made my decision, but i also learned alot from you post.l. i decided on the crosshair that you linked me to. Modualr is a big thing for me only becauseof my case choice (its a small form factor) so the less clutter the better. again, thanks for all the help.
 
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