Computers Keeps Restarting, Power supply dying?

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jessesoto

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Apr 5, 2013
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MY computer turns on and randomly makes a buzzing noise, i singled it out to the PSU, it has a light and everytime the noise comes on it dims! anyways i start my computer up and it restarts at random times, like accessing the desktop, or going on the internet etc to the point where i can't use it, i just want to make sure if its the PSU im going to have to replace! anyone else experience this problem?

i have a 680 W power supply, do i need more?

and if i do, what is the best power supply wattage suitable and a decent price.

specs:
PSU: APEVIA ATX-AS680W-BL 680W* ATX12V
Motherboard: ASUS M4A89GTD PRO/USB3 AM3 AMD 890GX
CPU: AMD Phenom II X6 1100T Black Edition Thuban 3.3GHz, 3.7GHz Turbo Socket AM3 125W Six-Core
RAM: 16 g totall; 2x G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1066 (PC3 8500)
HDD: Seagate Barracuda ST31000524AS 1TB 7200 RPM
GPU: Crossfired; 2x VisionTek AMD Radeon HD 6970 2 GB GDDR5
Drive: 1x LITE-ON DVD Burner
Fan: 2x 120 mm Fans
 
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ko888

ko888

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Feb 18, 2009
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APEVIA, that explains everything. Horrible PSUs made by horrible OEMs.

For a system using two AMD reference design Radeon HD 6970 graphics cards in 2-way CrossFireX mode AMD specifies a minimum of an 800 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 45 Amps or greater and have at least two 6-pin and two 8-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) will 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.
What is your budget range?
 
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J

jessesoto

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Apr 5, 2013
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hmmm thank you for the advice! I never knew that! but my range is between 0-250 i want something that would last me 5+ years!!! and as for overclocking im not doing any of that....
 
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ko888

ko888

Titan
Feb 18, 2009
16,708
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84,990
CORSAIR HX Series HX750 for $129.99
+12 Volt continuous current rating: 62 Amps
PCI-Express Connectors: 4 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

CORSAIR HX Series HX850 for $169.99
+12 Volt continuous current rating: 70 Amps
PCI-Express Connectors: 6 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011

CORSAIR Professional Series Gold AX750 (CMPSU-750AX) for $149.99 ($134.99 after $15.00 rebate card)
+12 Volt continuous current rating: 62 Amps
PCI-Express Connectors: 4 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139016

CORSAIR AX760 for $179.99 ($159.99 after $20.00 rebate card)
+12 Volt continuous current rating: 63.3 Amps
PCI-Express Connectors: 6 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139042

CORSAIR Professional Series Gold AX850 (CMPSU-850AX) for $159.99 ($144.99 after $15.00 rebate card)
+12 Volt continuous current rating: 70 Amps
PCI-Express Connectors: 4 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139015

CORSAIR AX860 for $199.99 ($179.99 after $20.00 rebate card)
+12 Volt continuous current rating: 71.6 Amps
PCI-Express Connectors: 6 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139044

Seasonic X Series X-750 (SS-750KM3 Active PFC F3) for $139.99
+12 Volt continuous current rating: 62 Amps
PCI-Express Connectors: 4 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151087

Seasonic X Series X-850 (SS-850KM3 Active PFC F3) for $159.99
+12 Volt continuous current rating: 70 Amps
PCI-Express Connectors: 6 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102

Seasonic Platinum Series Platinum-760 (SS-760XP2 Active PFC F3) for $179.99
+12 Volt continuous current rating: 63 Amps
PCI-Express Connectors: 4 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151120

Seasonic Platinum Series Platinum-860 (SS-860XP2 Active PFC F3) for $199.99
+12 Volt continuous current rating: 71 Amps
PCI-Express Connectors: 6 x (6+2)-Pin
Manufacturer Warranty: 7 years limited
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151111
 
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J

jessesoto

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Apr 5, 2013
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would this be a great choice? http://www.newegg.com/Product/Product.aspx?Item=N82E16817207017
 
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J

jessesoto

Honorable
Apr 5, 2013
4
0
10,510


just seen this! you told me i should have a minimum of 800w though? is this good? http://www.newegg.com/Product/Product.aspx?Item=N82E16817207017
 
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ko888

ko888

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


But you missed the most important part ...

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.

The XFX ProSeries 850W PSU - 850W XXX Edition Semi-Modular (Silver) (P1-850B-NLG9), that you're asking about, with its maximum combined +12 Volt continuous current rating of 70 Amps and with four (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with two Radeon HD 6970 graphics cards in 2-way CrossFireX mode.

That PSU is also made by Seasonic for XFX.
 
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