Everyone,
First of all - Happy New Year to everyone!
So just throwing this question/issue I ran into on my newly rebuilt PC - I'm hoping someone has a similar answer or might be able to explain this.
I have an older power supply - an Antec Silent 380W from several years back. The power supply works great, is quiet, and has held up well. Recently I just upgraded several components in my PC (CPU, memory and additional HD's - details below) and thought I should measure my system load (wattage) as I might be nearing a threshold for the CPU.
I purchased a Kill-a-watt meter (4400) and placed that inline with my PC and was shocked at the values. For my PC (specs below) - I easily expected a 300-watt+ load at peak. Instead I found 170W was the max the meter ever showed!
Here's my new PC specs:
CPU - AMD Phenom II x3 720 BE (overclocked to 3.2 Ghz)
Memory - 8 GB RAM
HDs - 2x 7200 RPM Drives
GPU - Radeon 4650
Optical Drive - standard dual-layer DVD
Motherboard - Gigabyte standard desktop board (nothing special)
To perform my "load tests", I performed the following:
1. Windows Experience Index (low usage, I know)
2. Prime95 test for about 30 minutes - got to about 165W
3. Skyrim - full detail - ran around for awhile in game - up to 170W peak.
Maybe there are other tests I should be running too to really push performance, but again, when I did the math on the peak utilization of the components I seriously thought I'd be somewhere in the 300-W range? I even bought a 650W power supply thinking I should prep in the event that I'm 80+% utilized on my PSU.
So is anyone else seeing data like this where their actual usage is significantly less than expected usage? Would you guys still update the PSU just in case? Should I be testing in a different way? Are the kill-a-watt meters off?
Any help, suggestions or comments are greatly appreciated.
Thanks,
K
First of all - Happy New Year to everyone!
So just throwing this question/issue I ran into on my newly rebuilt PC - I'm hoping someone has a similar answer or might be able to explain this.
I have an older power supply - an Antec Silent 380W from several years back. The power supply works great, is quiet, and has held up well. Recently I just upgraded several components in my PC (CPU, memory and additional HD's - details below) and thought I should measure my system load (wattage) as I might be nearing a threshold for the CPU.
I purchased a Kill-a-watt meter (4400) and placed that inline with my PC and was shocked at the values. For my PC (specs below) - I easily expected a 300-watt+ load at peak. Instead I found 170W was the max the meter ever showed!
Here's my new PC specs:
CPU - AMD Phenom II x3 720 BE (overclocked to 3.2 Ghz)
Memory - 8 GB RAM
HDs - 2x 7200 RPM Drives
GPU - Radeon 4650
Optical Drive - standard dual-layer DVD
Motherboard - Gigabyte standard desktop board (nothing special)
To perform my "load tests", I performed the following:
1. Windows Experience Index (low usage, I know)
2. Prime95 test for about 30 minutes - got to about 165W
3. Skyrim - full detail - ran around for awhile in game - up to 170W peak.
Maybe there are other tests I should be running too to really push performance, but again, when I did the math on the peak utilization of the components I seriously thought I'd be somewhere in the 300-W range? I even bought a 650W power supply thinking I should prep in the event that I'm 80+% utilized on my PSU.
So is anyone else seeing data like this where their actual usage is significantly less than expected usage? Would you guys still update the PSU just in case? Should I be testing in a different way? Are the kill-a-watt meters off?
Any help, suggestions or comments are greatly appreciated.
Thanks,
K