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QUESTION ON PSU

Last response: in Graphics & Displays
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November 20, 2007 11:34:05 AM

hi, currently i am using

intel pentium 2 duo core E6550
Sparkle 8800 GTS 320 Mb
160 GB hardisk
intel motherboard.

PSU = 430 Watts

Just wanna ask do my graphic card runs well with PSU of 430 watts Up to now, i haven't play any latest game which require high-end graphic card due to exam. Just wondering izzit any way to check my graphic card is supply with sufficient power or not? i.e software?

More about : question psu

November 20, 2007 11:47:43 AM

Honestly, you may not be supplying it with enough power. Unfortunately, I don't know of any software that will test if you graphics card is getting enough power.
a b U Graphics card
November 20, 2007 12:21:34 PM

You need a power supply with 21-23 amps on the 12v rails. Check your PSU label. I think you're fine.
Related resources
November 20, 2007 12:52:27 PM

The amps on the rail are more important than the overall wattage. Also, what brand is your PSU as quality varies greatly by brand.
a c 143 U Graphics card
November 20, 2007 1:01:27 PM

cheejun85 said:
hi, currently i am using

intel pentium 2 duo core E6550
Sparkle 8800 GTS 320 Mb
160 GB hardisk
intel motherboard.

PSU = 430 Watts

Just wanna ask do my graphic card runs well with PSU of 430 watts Up to now, i haven't play any latest game which require high-end graphic card due to exam. Just wondering izzit any way to check my graphic card is supply with sufficient power or not? i.e software?


Sure, lots of software like that around. The latest one is called Crysis. Just run it for an hour or two and if it works your PSU is fine :lol: 
November 20, 2007 1:39:53 PM

i just check with the label and my PSU brand is cooler master.

Dc output

+12V 12V2 +5V +3.3V +5Vsb -12.V
14 A 15A 28A 30A 2A 0.8A

so izzit good enough for 8800 GTS?...thanks for your reply..appreciate a lot
a c 192 U Graphics card
November 20, 2007 2:12:39 PM

Well, CoolerMaster is a low-quality PSU, but that one would appear to have the +12V amperage you need. Your call. Check the temperature of the air blowing out of that PSU, and of the case right above it. If either become excessively warm under heavy use, you may want to consider replacing it. Choose one from Tier-3 or better from the list at http://www.tomswiki.com/page/Tiered+PSU+Listings?t=anon
Also monitor the PSU fan; CoolerMaster uses cheap sleeved ones and they tend to fail after a while.
November 20, 2007 2:21:35 PM

ok...thanks for our advise..i have try to heavy use my com but currently the temperature works well with it.

but the main concern is about whether the Watts and ampere work well with 8800 GTS or not ?

Evongugg stated that "You need a power supply with 21-23 amps on the 12v rails. Check your PSU label. I think you're fine. "

Therefore, i just want to know how i sum up the ampere n how to calculate whether my PSU is within the 21-24 amps ?
November 20, 2007 2:28:42 PM

If it ai'nt broke don't fix it.
a b U Graphics card
November 20, 2007 2:51:38 PM

cheejun85 said:
ok...thanks for our advise..i have try to heavy use my com but currently the temperature works well with it.

but the main concern is about whether the Watts and ampere work well with 8800 GTS or not ?

Evongugg stated that "You need a power supply with 21-23 amps on the 12v rails. Check your PSU label. I think you're fine. "

Therefore, i just want to know how i sum up the ampere n how to calculate whether my PSU is within the 21-24 amps ?

Your PSU label should state how much wattage is dedicated to each rail (5v, 3.3v, 12v).

Find the total 12v wattage rating, and divide that by 12. That will give you the total amperage available on the 12v rail.

You did not give a model number, so I cannot look it up for you. I do agree that Coolermaster generally makes poor power supplies. They are fine for a low power system but not really designed for high end gaming components. Coolermaster does make excellent cases though.
November 20, 2007 2:55:47 PM

With your computer specs, your computer uses less than 300 watts, at load.

Your 420 is fine.

listen to joewho
a b U Graphics card
November 20, 2007 3:43:17 PM

aevm said:
I think your PSU is this one:
http://www.excaliberpc.com/Cooler_Master_eXtreme_Power_430W/RS-430-PCAR_P/partinfo-id-564281.html

+12V1 and +12V2 combined 384W is plenty.

Your PSU will do the job.

That being said, I'd replace it anyway because it only has 70% efficiency. If you get something with 85% efficiency it would cut in half the amount of electricity that gets wasted and converted to heat.


I think the guy who wrote the add made a typo, the label shows 348 watts to the +12v, which is still plenty, but I'd replace it too.
http://www.jonnyguru.com/PSU/eXtremePower430W/
a b U Graphics card
November 20, 2007 5:02:20 PM

I think the guy who wrote the add need to learn Ohm's law and go back to 1st grade math class.
November 23, 2007 12:15:49 PM

hi guys, someone did replied my question and he told me that 8800GTS will consume the Watt at leat 220W or above 220W when you turn on your PC, so 430W PSU might not power enough for it.

so what do u guys think ? i am not trying to say the guy is cheating me , but i just want to know what's ur point of view on his statement.
a b U Graphics card
November 23, 2007 12:33:05 PM

The entire system will draw that amount of power at start up, not just the card.
November 23, 2007 12:49:05 PM

alrite...in conclusion, i really need to upgrade my PSU power? i thought my PSU are sufficient as it provides 29 Ampere on the 12 V rails. just a little bit confuse.
a b U Graphics card
November 23, 2007 12:57:42 PM

According to the link I posted it can provide all the power that it claims, so that shouldn't be a problem.
It's such a low quality unit that johnnyguru cut his review short, you're taking a chance powering your machine with it.
a b U Graphics card
November 23, 2007 12:57:57 PM

You do not need to upgrade your PSU.
November 23, 2007 2:07:09 PM

in conclusion (which is what he wants, guys)

you do not need a new power supply. it's capable of powering your system.

however, you might want to think about getting a new one, because cooler master psu's are relatively cheap, and are prone to...lots of failures. in my experience, psu failures are the worst of any failure...some of the time, they take the rest system with them.
!