Which PSU to use???

[werty316]

I am current using a CM RealPower 550W and I also have a CM iGreen 500W.

Spec comparison for both:

RealPower 550W vs. iGreen 500W
http://img170.imageshack.us/img170/8269/realpower550wvsigreen50ux6.th.jpg (http://img170.imageshack.us/my.php?image=realpower550wvsigreen50ux6.jpg)

RealPower 550W
http://www.coolermaster.com/index.php?LT=english&Language_s=2&url_place=product&p_serial=RS-550-ACLY.&other_title=+RS-550-ACLY.+Real%20Power%20550W%20SLI

iGreen 500W
http://www.coolermaster.com/index.php?LT=english&Language_s=2&url_place=product&p_serial=RS-600-ASAA&other_title=+RS-600-ASAA+iGreen%20Power%20600W

Which PSU would you recommend I use?

Should I go with more overall wattage with less watts on the 12V rail and more wattage on the 3.3V & 5V rails or less overall wattage but with more wattage on the 12V rails and less wattage on the 3.3V & 5V rails?

[darkorb]

well what are ur comp specs?

it all depends on ur components

[Kougar]

The more amps on the 12v rails the better. The iGreen looks to be of much better quality judging by the continuous readings, so even though it's rated for less wattage it should be more capable than the RealPower. Not to mention it is rated for 500w continuous load, most mid/low end PSUs only list this as a "peak" rating that they cannot hold for more than a brief second.

[werty316]

I was set on the iGreen also and I like too see some other opinions from people with knowledge; thx for the reply Kougar ;)
well what are ur comp specs?

it all depends on ur components
Specs wouldn't matter as I am asking which is the better of the too; I'm not asking if this PSU will or could run my rig ;)

[darkorb]

ok im sry

just wanted to see if the igreen's 3.3 5 v rails could hold ur other componenets

[werty316]

Since the 3.3V & 5V runs ram, CPUs, drives and any electronic circuitry like integrated circuits, the iGreen wouldn't have problem running my rig ;)

[GIBSON]

Since the 3.3V & 5V runs ram, CPUs, drives and any electronic circuitry like integrated circuits, the iGreen wouldn't have problem running my rig ;)
I thought the cpu ran of the 12v rail, or is this only for intel cpu's?
Anyhow, the iGreen indeed seems the way to go :)

[tomato]

iGreen all the way. 8)

[Kougar]

I thought the cpu ran of the 12v rail, or is this only for intel cpu's?
Anyhow, the iGreen indeed seems the way to go :)

Older CPUs like the 486/386, Pentium used the 5v rail, but now CPUs only use the 3.3v rail... CPU voltages are only like 1.325v nowadays. ;) Hard drives draw from the 5v or 12v rails depending on the drive.

[GIBSON]

Older CPUs like the 486/386, Pentium used the 5v rail, but now CPUs only use the 3.3v rail... CPU voltages are only like 1.325v nowadays. ;) Hard drives draw from the 5v or 12v rails depending on the drive.
Oh, my mistake then, i just thought i remembered reading somewhere that intel switched to the 12V rail with their prescotts a while back because they were so power hungry.

[Kougar]

Oh, my mistake then, i just thought i remembered reading somewhere that intel switched to the 12V rail with their prescotts a while back because they were so power hungry.

:lol: Sounds like someone's attempt at subtle humor... As hot at those got they still used less than 1.5v...

[werty316]

You wouldn't want to feed 12V to a CPU that only requires a very small amount of volts ;)

[GIBSON]

You wouldn't want to feed 12V to a CPU that only requires a very small amount of volts ;)
Well duh, but fact is that today's psu's have most amps on the 12V rail. After all, your cpu isn't running 3.3V as well is it? It must be transformed on your motherboard, so they could in fact convert it from the 12V rail as much as from the 3.3V rail. Your probably right though that it is in fact the 3.3V rail, but I just wanted to make clear that by saying that today's cpus use 1.x volts isn't an argument.