I apologize in advance for what may be a redundant question. I searched for this precise scenario, and read the GPU/PSU thread, but I'm poor and spending a great deal of money, so I'd like to hear first-hand from somebody with a bit more experience than myself. I'm rather skilled/versed in building computers, but my experience is limited in the sense that I've always stayed rather safe within the confines of the "average" PC. I haven't had the chance to venture out into high-end hardware, so this is a first for me.
I have an Antec EarthWatts EA650 PSU.
The output on its 12v rails are +12V1@22A, +12V2@22A, +12V3@25A (69A total)
I just purchased (like, tonight) the EVGA GeForce GTX 480.
The GTX 480 claims it needs "Minimum of a 600 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 42 Amps.)"
I obviously have the minimum 600w requirement met, and I also need a 12 volt rail with a current rating of 42 amps.
My understanding of the required amperage is that as long as the TOTAL exceeds the recommended rating of 42 amps that all will be golden.
I.E.: my 22A, 22A and 25A rails equal 69 total amps, and I'll be fine.
I will not/have not be/been overclocking my GPU or CPU, and I have an Antec nine hundred two case with exceptional airflow and a side 120mm fan installed, so I don't think heat from the stock GPU/PSU will be an issue. I will only be running one GPU. If necessary, I'm running an Intel Core i7-860@2.8ghz, with 8gb of Corsair XMS3 DDR3 RAM and a WD Caviar Black 7200 RPM HDD.
Can I run this PC and a GTX 480 with my EA650?
Will there be any performance bottlenecks?
Thanks so much for any responses.
I have an Antec EarthWatts EA650 PSU.
The output on its 12v rails are +12V1@22A, +12V2@22A, +12V3@25A (69A total)
I just purchased (like, tonight) the EVGA GeForce GTX 480.
The GTX 480 claims it needs "Minimum of a 600 Watt power supply. (Minimum recommended power supply with +12 Volt current rating of 42 Amps.)"
I obviously have the minimum 600w requirement met, and I also need a 12 volt rail with a current rating of 42 amps.
My understanding of the required amperage is that as long as the TOTAL exceeds the recommended rating of 42 amps that all will be golden.
I.E.: my 22A, 22A and 25A rails equal 69 total amps, and I'll be fine.
I will not/have not be/been overclocking my GPU or CPU, and I have an Antec nine hundred two case with exceptional airflow and a side 120mm fan installed, so I don't think heat from the stock GPU/PSU will be an issue. I will only be running one GPU. If necessary, I'm running an Intel Core i7-860@2.8ghz, with 8gb of Corsair XMS3 DDR3 RAM and a WD Caviar Black 7200 RPM HDD.
Can I run this PC and a GTX 480 with my EA650?
Will there be any performance bottlenecks?
Thanks so much for any responses.