On the big list....don't see the Antec EA-500 (9.5 on jonnyguru) coming in below the 9.0's from Corsair ....and the HX series being same rank as the Earthwatts ...TP 750 ranked over the CP-850 ????? Antec Neo's generally get poor ratings on jonnyguru, ranked 1 here.....
thanks for the help. i was releaved when i read that 500w would be more then enough. but then i filled out the antec psu calculator and its coming up around the 537w mark.
is it calculating the quad core i5-750 incorrectly? with single core selected, it totals 307w, with quad core selected, it totals 537. thats a 230w difference. ive read on forums that the i5-750 uses around 100w max?
i also believe the velociraptors and the g.skill eco ddr3 1600 ram i have are low in watts. so should i take the antec calculation seriously? is 500w really more then enough?
Alothough it is a little more power than you need, the general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency.
A high quality 500 to 550 watt psu will have a +12 volt rail rated at 40 amps. A high quality 700 to 750 watt psu will have a +12 volt rail rated at 60 amps.
In addition the power supply should be at least 80+ Bronze certified for energy efficiency. There are some models available which have achieved 80+ Silver and 80+ Gold Certifications.
Before purchasing a new psu you will need to decide whether you will eventually have a pc with one or two video cards.
Corsair and Seasonic are two brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty. Lately we've been seeing a few other brands offering some high quality units. One example would be the Antec Earthwatts and Antec TruePower New models which are a major improvement over Antec’s older psu’s like the Basiq models.
thanks for that info.
i have an EA-500D which is 80-plus bronze.
im only going to be using the one graphics card. if the rule of thumb is 500-550w psu for a system with a single video card, would i get by with my EA-500D? or will i need to buy a 530w+ psu?
is it a big risk booting up my system if 500w isnt enough?
for reference, this is my setup:
4GB 1600 G.Skill Eco
2 x 160gb Velociraptors
Antec Sonata III with EA-500D
and i plan to get the following:
640gb Caviar Black
external back up drive.