|Still not a good choice. When I look at the specs I see only 70% efficient, 40Amps on the 5volt rail and 25Amps on the 12volt rail (another site shows it as 22A on 12V), two SATA connectors, possibly a PCIe connector and a one year warranty. One site lists approvals including FCC (radio noise) and CSA (Canada) but no UL listing, so it really is not approved/intended for the US market. It is still a $20. cheap power supply. The 430Watt Corsair model I linked to has nearly twice the available 12Volt Amperage of this supposedly 600 Watt model and the inflated 5Volt and 3.3Volt amperage ratings (if real) can never be used since all of the high draw components on a modern system draw from the 12 Volt rail, not the lower voltage rails. Understand that all cheap power supply manufactures do this inflating of these numbers to show higher overall wattage ratings, but even if these ratings are real, they cannot be used by you and more often are not real. Apparently it is much easier and cheaper to offer higher amperage numbers at these voltages and when you have trouble later, they can point out that they told you that the 12 Volt amperage was not sufficient for your graphics card (never mind that a decent 430Watt unit can provide more usable amperage than their 750Watt model at a more energy efficient level and with a warranty three times as long). A good power supply has a 3 year warranty because the manufacturer has more confidence in the quality of their product and a few of their best models have even a 5 year warranty.|
I repeat, DON'T GO CHEAP !!!
Spend a little bit more and save a lot more money in the long run.
If chosen carefully with a lot of looking at reviews, a $20. power supply MIGHT be able to power an inexpensive off-the-shelf computer a few years out of warranty (like the one that probably was included), but not a gaming machine. Once you add a graphics card and use the machine for more than the basics (web, email, office work), you are in a different world. Cheap is cheap. Don't do it.
Note, you did ask at one point about using two graphics cards, if you do end up going this route, you will need to get up into good high wattage power supplies that will be over $100.00, where either of those I linked would handle a really decent single graphics card which would be a better overall upgrade when the time comes.
You have to be a little bit crazy to keep you from going insane.