need advice about power supply.

[dogbyte_13]

I am building my son the following PC, ordering parts tonite.

440 AM3 rana at 3.00 ghz
Biostar 880g mATX board
4 gig DDR3 1333
1 HDD
2 DvD drives

i have 2 powersupply i can use, which would be better, i may oc the chip or try to unlock it if im lucky enough, it would be a mild OC, and may def get a better cooler.

Atec Basiq 350
http://www.newegg.com/Product/Produ...1003&cm_re=antec_basiq-_-17-371-003-_-Product

Or the Dynex 400

http://www.bestbuy.com/site/Dynex&#...pply/8311052.p?id=1174091945952&skuId=8311052

 

[Zero82z]

The Antec is better, although both are pretty lousy PSUs.

 

[E4g1e]

The Antec is better, although both are pretty lousy PSUs.

I can't recommend either one of those. That's because the Dynex can barely deliver half of its rated wattage under the best-case scenario. And the BP350 provides only 276W (23A) combined on its two +12V rails (and then, at an unrealistically low internal PSU operating temperature of 25°C/77°F). That leaves the OP with almost no room for overclocking even a low-end CPU given the fact that the motherboard and any drives consume some of that power.

What's more, that Dynex 400W is way too expensive given that it is really only a 230W PSU under optimal conditions.

Worst of all, both of those PSUs have less than 80 percent efficiency and lack any PFC whatsoever, which means that they are older designs that are ill-suited to modern systems and that they will result in higher annual electricity costs than if the OP had used a more efficient PSU to begin with. In fact, the cost of the electricity that gets wasted using one of those cheapo PSUs would have paid the price difference between one of those cheapies and a better-quality, higher-efficiency, slightly higher-wattage PSU in just one year.

(To the OP) Get this PSU instead:

$53 - Antec NEO ECO 400C 400W Continuous Power ATX12V 2.3 / EPS12V 80 PLUS Certified Active PFC Power Supply

Much better quality for about the same price as you would have paid for that shitty Dynex PSU (after taxes and/or shipping).

On the other hand, if you already have both of those PSUs, you will need to buy a new PSU anyway.

 

[Nuxius]

Well, the Antec one is definitely the lesser of 2 evils, as the Dynex one is a system destroying piece of crap.

http://www.hardocp.com/article/2008/05/13/getting_best_buy_on_power_supply/3

However, whenever the unit was pushed beyond 200w DC the unit was a complete and utter failure, which is in stark contrast to what the 400w label on the unit promised. Indeed, the first unit blew out on the primary side and in doing so it damaged our Variac requiring replacement. To date primary side failures have typically taken out the power meter being used not the Variac. So in the end, the Dynex unit did manage to excel in one category, sadly that category was the test equipment destroying category where it somehow one upped the PowertekPro 500w which is certainly not a good thing to excel at in our estimation.

I don't think you want that thing anywhere near your computer.

I personally wouldn't recommend either one of them, though.

 

[merliwolf]

The Antec is far better, although obviously on the mediocre side at best.