Does this PSU have enough power?

Toggle sidebar Toggle sidebar
Solution
ko888
For a system using a single GeForce GTX 570 graphics card NVIDIA specifies a minimum of a 550 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 38 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current...
Sort by date Sort by votes
jnkweaver

jnkweaver

Distinguished
Nov 11, 2011
2,160
1
20,515
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990
For a system using a single GeForce GTX 570 graphics card NVIDIA specifies a minimum of a 550 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 38 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The Cooler Master eXtreme Power Plus 500W (RS500-PCARD3-US) power supply unit, with its maximum combined +12 Volt continuous current rating of 30 Amps and with one 6-pin PCI Express supplementary power connector, is insufficient to power your system configuration with a single GeForce GTX 570 graphics card.

If you're going to be overclocking the FX 8350 plan on adding another 9 to 10 Amps, depending on the magnitude of your overclock, to the +12V rail's minimum capacity recommended by NVIDIA to handle the extra power draw.
 
Upvote 0 Downvote
Solution
G

Guillermo Fernandez

Honorable
Sep 28, 2013
60
0
10,630



This is confusing because i am currently running the NVIDIA GeForce GTX 570 with that same PSU and a 95W CPU. I dont understand why it would be insufficient for the Video Card if it is working fine currently. The reason why i was asking was because i wanted to switch over to the AMD 8350 which requires more watts than my current CPU and wanted to know if my PSU could handle it even without overclocking which is not my main focus at the moment. I am perfectly happy not overclocking the 8350 for the time being.
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


Have you tried running Furmark stability testing? Does the system stay running or does the power supply unit shut down?

Overclocking the AMD FX-8350 will add a lot more to the system power draw.

An AMD FX-8350 is not a 95W CPU. When overclocked to 4.7 GHz the FX-8350 CPU will be drawing more than twice as much power as it does at its stock 4.0/4.2 GHz clock.
 
Upvote 0 Downvote
G

Guillermo Fernandez

Honorable
Sep 28, 2013
60
0
10,630


I understand that the 8350 is a 125W CPU. I was saying that the CPU i have now is 95W. As for the NVIDIA GeForce GTX 570 it is running fine. I play Battlefield 3 on ultra with a decent frame rate and no problems. I will run that furmark benchmark and get back to you.What i was asking was if my PSU could support the 8350 without the overclocking which i can do without for the time being?
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


At stock clock speed the FX-8350 will draw 95 Watts from the +12V rail at the CPU power connector.

You never said what your current CPU model is. AMD has quite a few 95W TDP processors for Socket AM3+.

I would say that the increase for the CPU alone is going to be at least 2 to 3 Amps more from the +12V rail.
 
Upvote 0 Downvote
G

Guillermo Fernandez

Honorable
Sep 28, 2013
60
0
10,630


I am currently using an AMD Athlon II X4 630. I just ran the FurMark benchmark and it did not shut down but i do not know what i am lookign for exactly. I am not very experienced and this is my second build so i really appreciate the help. Thank you.
 
Upvote 0 Downvote
ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990


The power increase at stock clocks when going from an AMD Athlon II X4 630 to an AMD FX 8350 is 40 Watts (or 3.3 Amps) more from the +12V rail.

It's not only the amount of power that the power supply is able to deliver that is important but the quality of the DC output power. High ripple and noise levels on the output rails will degrade the electrolytic capacitors on your motherboard, graphics card, controller board on hard disk drives, ..., etc. When that happens you will begin to notice that the system isn't as stable anymore.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom