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1.5 year old Power supply strong enough? - Page 2

post #11 of 14
Quote:
Originally Posted by TheJ0K3R View Post

so pretty much all online wattage calculators are trying to trick me into thinking i need to spend 200$$ on a PSU when in reality i only need to spend 80-120??...EVERYTHING I KNOW IS A LIE!!

I dont think they are truing to trick you, just inaccurate in thier calculations that is tend to be
higher than needed.
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Going to be chaep
(16 items)
 
Wife's Rig
(12 items)
 
 
CPUMotherboardGraphicsRAM
i7-3770k Gigabyte GA-Z77X-UP5 TH MSI GTX460 G.Skill TridentX 2400 2 x 4GB 
Hard DriveHard DriveOptical DriveCooling
Plextor M5p 128GB 2 x WD 500GB Blues LG Prolimatech Megahalems Rev C 
CoolingOSMonitorPower
Arctic F12 CO PWM x 2 Push/Pull Windows 7 64 bit Ultimate LG IPS235V Corsair AX850 
Case
Coolermaster HAF 912 advanced (Asia version) 
CPUMotherboardGraphicsRAM
I5-3570K Gigabyte Z68X-UD3H-B3 Inno3D Ichill GTX660 8GB G.Skill RipjawsX 1600 
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Samsung 830 128GB WD black 500GB Liteon Coolermaster Hyper 212+ EVO 
OSMonitorPowerCase
Win 7 ultimate Samsung Syncmaster 932gwe+ OCZ ZT series 550W Coolermaster 410 
CPUMotherboardRAMHard Drive
1.67Ghz Atom stock 1GB DDR2 2 x 500GB Western Digital Cavier Blacks [RAID 1] 
CoolingOSPowerCase
stock DSM3.2 [built on linux] stock stock 
OtherOther
Synology DX510 Expansion unit 5 x 1TB WD Cavier Blacks in a RAID 6 
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post #12 of 14
Thread Starter 
Quote:
Originally Posted by stubass View Post

I dont think they are truing to trick you, just inaccurate in thier calculations that is tend to be
higher than needed.

ok, I will yank my computer apart real fast and do some quick updates on my system and then im off to sleep.
post #13 of 14
U can run that system on a 450 watt....with still a lot of room.

http://www.guru3d.com/articles_pages/amd_radeon_hd_7850_and_7870_review,7.html

Power Consumption

Let's have a look at how much power draw we measure with this graphics card installed.

The methodology: We have a device constantly monitoring the power draw from the PC. We simply stress the GPU, not the processor. The before and after wattage will tell us roughly how much power a graphics card is consuming under load.

Note: There has been a lot of discussion using FurMark as a stress test to measure power load. Furmark is malicious on the GPU that it does not represent an objective power draw compared to really hefty gaming. If we take a very-harsh-on-the-GPU gaming title, then measure power consumption and then compare the very same with Furmark, the power consumption can be 50W to 100W higher on a high-end graphics card solely because of FurMark.

We decided to move away from Furmark in early 2011 and are now using a game like application which stresses the GPU 100% yet is much more representable of power consumption and heat levels coming from the GPU. We however are not disclosing what application that is as we do not want AMD/NVIDIA to "optimize & monitor" our stress test whatsoever, for our objective reasons of course.

Our test system is based on a power hungry Core i7 965 / X58 system. This setup is overclocked to 3.75 GHz. Next to that we have energy saving functions disabled for this motherboard and processor (to ensure consistent benchmark results). On average we are using roughly 50W to 100 Watts more than a standard PC due to higher CPU clock settings, water-cooling, additional cold cathode lights etc.

We'll be calculating the GPU power consumption here, not the total PC power consumption.

Measured power consumption R7850

System in IDLE = 160W
System Wattage with GPU in FULL Stress = 256W
Difference (GPU load) = 96W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 106 Watts



Measured power consumption R7870

System in IDLE = 157W
System Wattage with GPU in FULL Stress = 274W
Difference (GPU load) = 117W
Add average IDLE wattage ~10W
Subjective obtained GPU power consumption = ~ 127 Watts
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Queso Fresco
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post #14 of 14
Thread Starter 
Now THAT is what i needed. +rep on you good sir.
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