GX 550 enough for R9280x ?

Asif farooq · Oct 21, 2014

Is this power supply (Cooler Master GX 550w) enough for MSI R9280x?
It has 44 amperes and 550 watts whereas the Msi r9280x requires 30 amperes on 12V rail and 500 watt psu. So is this enough? And even if i buy a new psu ill go for Corsiar Vs 650w because i cant afford more. So is it worth it to get corsair Vs 650 over GX 550 ?

MeteorsRaining · Oct 21, 2014

First of all, your current PSU is low quality, and will likely fail on 280X's load. Secondly, VS is even worse, junk quality. You need a decent quality PSU for that card, it requires a lot of power.

pierrerock · Oct 21, 2014

As MeteorsRaining mentionned, none of these two PSU can handle a R9 280X load.

You will need to get a bigger budget for a PSU. Remember that a PSU is one of the most important component of a computer as it will provide voltage stability and protection against electrical surge. One should not go cheap for a component which will protect your high-cost computer.

EDIT

Refer to this PSU tier list. http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html

Since we are talking about R9 280X, such mid-high end GPU need a Tier 2B PSU at the least. Most Tier 3 like the two you mentionned won't do the trick. XFX are fairly cheap for the quality they provide.

Asif farooq · Oct 21, 2014

pierrerock :

As MeteorsRaining mentionned, none of these two PSU can handle a R9 280X load.

You will need to get a bigger budget for a PSU. Remember that a PSU is one of the most important component of a computer as it will provide voltage stability and protection against electrical surge. One should not go cheap for a component which will protect your high-cost computer.

EDIT

Refer to this PSU tier list. http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html

Since we are talking about R9 280X, such mid-high end GPU need a Tier 2B PSU at the least. Most Tier 3 like the two you mentionned won't do the trick. XFX are fairly cheap for the quality they provide.

GX 550 is 80 plus bronze, why are you saying that its a bad psu?

Asif farooq · Oct 21, 2014

MeteorsRaining :

Is corsair GS600 a good one? Btw i dont get why are you saying the GX 550w is low quality? it provides 42 Amps on 12 V rail which is much more than required by the card

MeteorsRaining · Oct 21, 2014

GX uses cheap caps, and efficiency doesn't equate to quality. And GS600 is much better quality. And GX will fail long before it provides full 42A.

pierrerock · Oct 21, 2014

bad capacitor and bad voltage stability. We talk here of transforming AC current to DC current so there will always be a stability problem.

Since a strong GPU such R9 280X will require big surge of power and big power load, If you power supply cannot provide enough stability for such demands, it will likely overheat, which will shorten PSU life, stability problem may make system crashing. There is also possibility of burning your component (less likely but possible)

But yeah two big problems :
heat
system crash

Rukeith · Oct 21, 2014

MeteorsRaining :

On this subject, could I ask if this PSU would be DECENT enough for a basic FX AMD build with a Non-X R9 280?:

Antec TruePower Classic 650w 80plus GOLD

MeteorsRaining · Oct 22, 2014

^Yes plenty.

pierrerock · Oct 22, 2014

Antec TruePower series is more than decent. No problem there.

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