Jonathan Bones
Baseband Member
- Messages
- 75
As part of my studying for my new computer store job (see here), I want to get a better handle on power supplies. I have one. I can tell you it's 350w. But other than that, I don't know a whole lot about them. ;P
Looking at the sites of my local computer stores, you can pay well over $100 for a brand name 400w PSU. (Antec, Enermax, OCZ, etc.) Yet among a couple of these popular brands, my store sells an "A-Power" 400w for $20 CAD (about $16 USD), and a simply generic 450w for the same. Dual-fan Echostars, 480-680w, will only run you $25-$35.
So what's the difference? Quality and secondary specs, obviously. But what specifically? What do I tell the discriminating customer when he or she asks me to compare the high-end retail models with the generic OEMs?
When you're shopping for a PSU, what are the important specs you look at? Browsing models on the internet, I see +5V, +12V1, +12V2, +3.3V, -12V, +5Vsb as output specifications, but am unsure of what they actually mean. Likewise, I don't know which are crucial in determining a PSU's true overall output, or which ones change from model to model (and on the other hand, which ones are going to be pretty much the same whether you're looking at top of the line or generic).
Then you have a bunch of input specifications, as well as other standard features. In this case, I'm getting all this from an Antec product page for one of their high-end "silent" models. (Perhaps not a good model for comparison, but it has a complete specs list.)
So what's crucial? What are the important things I need to know? I'd very much appreciate any help you could give me. Just pointing me in the direction of a good article would do.
Thanks!
Looking at the sites of my local computer stores, you can pay well over $100 for a brand name 400w PSU. (Antec, Enermax, OCZ, etc.) Yet among a couple of these popular brands, my store sells an "A-Power" 400w for $20 CAD (about $16 USD), and a simply generic 450w for the same. Dual-fan Echostars, 480-680w, will only run you $25-$35.
So what's the difference? Quality and secondary specs, obviously. But what specifically? What do I tell the discriminating customer when he or she asks me to compare the high-end retail models with the generic OEMs?
When you're shopping for a PSU, what are the important specs you look at? Browsing models on the internet, I see +5V, +12V1, +12V2, +3.3V, -12V, +5Vsb as output specifications, but am unsure of what they actually mean. Likewise, I don't know which are crucial in determining a PSU's true overall output, or which ones change from model to model (and on the other hand, which ones are going to be pretty much the same whether you're looking at top of the line or generic).
Then you have a bunch of input specifications, as well as other standard features. In this case, I'm getting all this from an Antec product page for one of their high-end "silent" models. (Perhaps not a good model for comparison, but it has a complete specs list.)
So what's crucial? What are the important things I need to know? I'd very much appreciate any help you could give me. Just pointing me in the direction of a good article would do.
Thanks!