Testing PSU with power (kilo-watt) meter. Is 300 Watts accurate?

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da_dragon2k3

Honorable
Nov 5, 2013
2
0
10,510
Shortly after building my new pc last year, it would randomly shut down while playing video games. At first it was just Firefall. Sometimes 5 minutes in, sometimes 90 minutes into my session. Chalked it up to the game itself. Then it did twice with Tera online. Now it does it with Marvel Heroes in different sections of the game.

I'm currently testing my system with a kilo-watt meter. Running Prime95 and Furhmark, maxing my gpu, cpu and ram, I am only pulling 300 Watts from the wall. Is this meter really accurate? While playing marvel heroes it was reporting 250 Watts only......

System:
PSU: Rosewill Stallion Series RD500-2SB 500W ATX12V v2.2 Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182076

GPU: ASUS GTX660 TI-DC2-2GD5
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121653

CPU: Intel Core i5-3570K
http://www.newegg.com/Product/Product.aspx?Item=N82E16819116504

Mobo: ASRock Z77 Extreme4 LGA 1155 Intel Z77
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157293

I still can't believe my system is only pulling 300Watts from the wall (surge protector). Is this accurate? is there any other testing I can do? Thanks.
 
Solution
ko888
Rosewill Stallion Series RD500-2SB 500W

OEM: Solytech
Manufacturer Warranty: 1 year limited

The horrible OEM and the short warranty period are red flags.

Get a better quality PSU.
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