Would 850W be enough?

[Evan Gutierrez]

Hello,
I just bought a new pc and currently having some issues. When I enable crossfire and play video games, the psu starts buzzing and crash after minutes.
I have Seasonic M12D 850W PSU and my rig is:
-NZXT S340
-AMD FX 8350 Stock Speed
-2X8GB DDR3 1866 Hyper X Fury
-1 SSD 120GB Samsung Evo 850
-2 7200 RPM Sata HDD
-MSI 970 Gaming Motherboard
-Sapphire R9 295X2 8GB Stock Speed
-Leppa Aquachanger 240M AIO CPU Cooler
-1 Logysis LED RGB Strip
And connected a Steel Series Apex Keyboard, a Logitech G9x Mouse and a Plantronic Gamecom 780 headsets.
I understand is recommended a higher PSU and I am looking to buy a new one, but wanna be sure this can be a PSU issue.
Any Idea?

Thanks in Advance.

 

[geofelt]

This chart says 1000w and two 8 pin pcie power leads.
http://www.realhardtechx.com/index_archivos/Page362.htm
Seasonic is excellent quality and I would have thought it entirely capable of delivering sufficient power.
The max draw from the graphics card should be 425w.
Your cpu is a hot one at 125w and nothing else seems to be power hungry.
Is it possible that your led lighting or cpu cooler are drawing more than they should?

Can you test with a different psu?
I would hate to replace a high quality psu only to find out that the problem was elsewhere.

 

[Evan Gutierrez]

This chart says 1000w and two 8 pin pcie power leads.
http://www.realhardtechx.com/index_archivos/Page362.htm
Seasonic is excellent quality and I would have thought it entirely capable of delivering sufficient power.
The max draw from the graphics card should be 425w.
Your cpu is a hot one at 125w and nothing else seems to be power hungry.
Is it possible that your led lighting or cpu cooler are drawing more than they should?

Can you test with a different psu?
I would hate to replace a high quality psu only to find out that the problem was elsewhere.

Yeah I found 1000w was recommended but I though this PSU will be enough, I dont have issues when play with just 1 GPU enable, I have try powering OFF the LED strip to avoid consumption, also change the cpu cooler to the stock one, and still the same issue. Currently I have no other stronger PSU available, but Indeed I will also hate to change my psu and will keep having the same issue.

 

[Evan Gutierrez]

So After looking each component max power consumption, this how the chart looks:
cpu cooler: 13W
cpu: Peak 160W
gpu: 485W
motherboard: 80W
sata disks: 15W
ssd: 3W
rbg led strip: 8W
RAMs: 6W
Case Fans: 12W
USB Items 5W
Total: 787W

In paper, this psu should be able to handle the whole system with crossfire enable, could it be a defective component or either the psu having issues.?
EDIT: Could be also some issue cause this is a Dual Raid 12V psu? maybe a single raid is been overload, I make sure I connect the Graphic card 8Pin connectors, 1 from 12V1 and the other from 12V2 to distribute the load.

 

[Evan Gutierrez]

Bump please

 

[MasterMace]

You'll want a more powerful PSU, in my opinion. The FX8350 is a power whore, as is the 295x2. The 295x2 pulls 470W peak off the 12v, the FX8350 pulls 195W at load, but peaks over 350W. These are at stock. Your PSU is a quality unit, and provides 840W (70A) on the 12v, but it's split into 2 rails, 40A-40A. This further becomes an issue because the PCIe cables are split between the rails. The 20+4 shares a rail with a 6 pin and a fixed 8pin. If you had a CPU that peaked lower, this wouldn't be an issue.

also, the Leppa Aquachanger 240M AIO CPU Cooler is a liquid cooler, and doesn't help with the power draw issues.