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Question about PSU please help!!!!!!!!!!

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November 11, 2010 10:38:04 AM

hey guys i was thinking about upgrading my current rig, i already decided to upgrade my CPU to AMD Phenom II X4 955 95W on my M56S-S3 mobo, while still deciding on Graphics Card between HD 6870 and HD 6850

my current PSU is Cooler Master 460 RS-460-PCAR-A3 http://www.coolermaster.com/product.php?product_id=3686

i have question about the power supplies, i think my PSU is 460 watts, can it handle the 6870 or 6850 card plus the 955 CPU without problem? or will it bottleneck the PSU, what problem will it cause????



and if my current PSU is not enough to handle the upgrade, what PSU should i buy? I use my computer mainly for gaming and i live in Sydney, Australia so if u can find cheap good parts please post links. http://www.msy.com.au/Parts/PARTS.pdf this page got some PSU lists but i have no idea which one i should get, i don't have any idea about it so please leave recommendations and suggestions about the PSU. thx!!!!

More about : question psu

a b ) Power supply
November 11, 2010 10:52:45 AM

well, the general rule of buying a new PSU is buy the biggest you can afford...
i dont know wat ur budget is, but id upgrade to about 720w. you might be able to use ur current PSU, but dont expect to overclock anytime soon!
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a c 165 ) Power supply
November 11, 2010 11:58:02 AM

actually the only rule of buying a PSU is to buy the best quality PSU that will get the job done. more "power" on a PSU label does not equal a better PSU.

here is a review of your extreme power 460 PSU
Even though this power supply can’t deliver its labeled power, it isn’t a bad product for its price tag and targeted audience. Its real power is close to its labeled power (430 W) and its efficiency isn’t bad for a low-end product. Plus it has all its protections up and running, a thing sometimes hard to find on cheap power supplies.

http://www.hardwaresecrets.com/article/Cooler-Master-eX...

I would suggest a quality PSU with 30a on its 12v rail (typically a 450w+ unit)from corsair, silverstone, enermax, seasonic, or antec. xigmatic and OCZ also offer budget unit that can get the job done but drop a bit in quality from the units mentioned. You will find any of these units superior to some non-name budget 720w unit.

luckily both the 6850 & 6870 are very power efficient cards. your current PSU could probably power either one but I would look toward a future PSU upgrade anyways.
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a c 243 ) Power supply
November 11, 2010 12:02:22 PM

ct1615 said:

here is a review of your extreme power 460 PSU
Even though this power supply can’t deliver its labeled power, it isn’t a bad product for its price tag and targeted audience. Its real power is close to its labeled power (430 W) and its efficiency isn’t bad for a low-end product. Plus it has all its protections up and running, a thing sometimes hard to find on cheap power supplies.

http://www.hardwaresecrets.com/article/Cooler-Master-eX...

Wrong one ct

http://www.hardwaresecrets.com/article/Cooler-Master-El...
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a c 165 ) Power supply
November 11, 2010 12:08:50 PM

the op linked to the eXtreme Power Plus 460W
(RS-460-PCAR-A3 / RS-460-PCAP-A3)

i linked my review to the
Cooler Master eXtreme Power Plus 460 W (RS-460-PMSR-A3)

your link is to
Elite Power 460 W (RS-460-PSAR-J3)

...how many junk PSU can CM make under different model #?
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a c 243 ) Power supply
November 11, 2010 12:10:57 PM

ct1615 said:
the op linked to the eXtreme Power Plus 460W
(RS-460-PCAR-A3 / RS-460-PCAP-A3)

i linked my review to the
Cooler Master eXtreme Power Plus 460 W (RS-460-PMSR-A3)

your link is to
Elite Power 460 W (RS-460-PSAR-J3)

...how many junk PSU can CM make under different labels?

It's just like the little Thermaltake 430, give it another model number and keep on selling :pfff: 
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a c 165 ) Power supply
November 11, 2010 12:15:41 PM

lovely, nothing like screwing the public
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November 12, 2010 1:51:23 AM

this is more confusing, according to this thread here
http://www.tomshardware.com/forum/279391-28-power-requi...

the recommended power supply for gtx460 is 450 watt and the gtx470 550 watt
whereas the requirement for the HD6000 series card is 500 watt, so the 6850 actually requires more power than the gtx460???

also are power consumption and power requirement two different things??? cos their values are always way off.

and can someone list the recommended PSU power supply for the 6870+phenom 955 and 6850+phenom 955
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a c 165 ) Power supply
November 12, 2010 2:26:57 AM

ati/nvidia post requirements/recommendations (same thing) to cover themselves for poor power supplies. they are simply making guess so that low quality units are covered. the chart above shows you want a PV with an Over clocked i7 CPU and 6850, 6870, etc., will use in a max stress test. as i stated above, a quality 450-500w will do the job.
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November 12, 2010 3:11:39 AM

oh, that makes sense

so it means my current 460w PSU is more than enough to handle the HD6870 (306w) and the Phenom II X4 955 (95w)?????
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a c 165 ) Power supply
November 12, 2010 3:20:10 AM

i think you should read the review linked by delluser
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November 12, 2010 4:42:50 AM

just read the review, says it can only handle up to 420w
but with HD6870 + Phenom II X4 955, the consumption is 401
it means the PSU still can handle those parts right???

or will it be cutting it too close, what will happen if its near the peak supply?
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November 12, 2010 8:52:40 AM

bump
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a b ) Power supply
November 12, 2010 10:04:03 AM

Quote:
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* Post in ALL CAPS or use excessive punctuation!!!
* Share personal information, like your email address. Identify theft is real.
* Bump posts, claim "first!"
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Source.
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