I am specifically eying the RS-460-PMSR-A3 model #. Any opinions? Both good, bad, and neutral. What are your experiences with this psu? I want to purchase it because my PC is running pretty hot 50 degrees Celsius with my current 300W Bestec power supply. When equipped with the EVGA Geforce 7600gs video card. A card that requires minimum 350W of power and 18A of current. Will the Coolermaster of 460W and 18A current carrying potential on the +12V rail, be a suitable solution to my problem?
I plan on using just one video card, specifically the evga 7600gs. As well as, a 300GB Seagate Sata hard drive, a dvd+rw drive, sound card, 1GB ddr2 memory stick, and the Asus motherboard.
Here is answer I received from another poster at another forum:
If you get a PSU that has gross excess capacity, it will just contribute to the overheating problem. A PSU is at its most efficient when loaded to 60-75% of its rated capacity (generates least waste heat in proportion to power delivered).
I think that 460W PSU will probably make your overheating problem worse.
When encountering overheating problems, you need to first IMPROVE YOUR CASE AIRFLOW.
And if you want to replace the PSU, choose one that is correctly sized for your system, and get an 80-Plus-Certified unit-- Those are better-engineered to meet the more stringent 80%+ efficiency standards and run cooler than plain power supplies. I recommend this 80-Plus-Certified unit for your system:
330W is already more than you will need for your config. That 7600GS draws a MEASLY 35 watts of power maximum, and the rest of your system probably can't draw more than 100W at peak anyway. With a 460W PSU you will only be loading it at 30%, which is grossly inefficient.
Is it true that I could get away with the 300W Bestec psu or should I take the jump to a more powerful PSU?
Links for details on my build:
My current PSU
Specs for my PSU upgrade to Coolermaster 460W Note that I read a review of it at hardwaresecrets.com; indicating that the peak power it operates at is 430W.
My HP computer out-of-factory specs
The evga 7600gs specs
P.S. I also did a calculation of power usage for my CPU at a site, recommended by one of the posters on BC, whom I cannot remember. Anyway, it gave me a reading of 290W at 85-90% use, when the 7600gs is installed, along with an extra DVD-rom drive, which I also want to get.
On Edit: Here is an older thread, where I ask a similar question. It also contains my motherboard specs, if you deem that important in forming your opinion on my situation. I know, I procrastinated upgrading my PSU for about a year now, due to school and such.
Edited by rsd79, 23 May 2008 - 02:09 AM.