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What PSU would be best?

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#1
Hi guys, Im just wondering what would be the min PSU i could use to run the system that ive listed below.

CPU: i7 940
Memory: 6GB DDR3 1333 RAM
GPU: 2x 7870's
MOBO: GA- EX58-UD5
HDD: 320GB Sata 2
DVD burner X2
3x120mm and 1 80mm fan

I have a HX-650 but i dont think this would be enough?

:toast:
 

cdawall

where the hell are my stars
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#2
You would be loading it up pretty good, but it should hold on if everything is run at stock and the PSU isn't ancient.
 
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#3
Joined
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Messages
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Location
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System Name Night Rider | Mini LAN PC | Workhorse
Processor AMD FX 8350 | i7 2600 | i7 970
Motherboard GA-990FXA-UD3 AM3+ | GA-H77M-D3H | Gigabyte EX58-UD5
Cooling AMD Wraith cooler| Coolermaster Gemini with Noctua 3000RPM Fan | Big shairkan B
Memory 4x2GB DDR3 G.Skill 1600 6-8-6-24| 2x4GB Corsair 1600 | 6x2GB DDR3 1300 Corsair
Video Card(s) ASUS GTX 970 OC in Sli | Gainward GTX 650 TI GS | ASUS 7970 Matrix
Storage 250GB Plextor SSD Por 5 /1TB WD Black | 500GB WD ES/WD Black | WD 320/Seagate 320
Display(s) Samsung 2494hs 24" 1080P| Samsung 20" S20C300L/DELL 15" | 22" DELL/19"DELL
Case LIAN LI PC-18 | Mini ATX Case (custom) | Atrix C4 9001
Audio Device(s) Onboard | Onbaord | Onboard
Power Supply Silverstone 750 | Silverstone Mini 450W | Corsair CX-750
Mouse Gigabyte aivia krypton gaming mouse | Rapoo V900 | Gigabyte 6850X
Keyboard MAX Keyboard Nighthawk X8 | Creative Fatal1ty eluminx | Some POS Logitech
Software Windows 7 Pro 64 | Windows 7 Pro 64 | Windows 7 Pro 64/Windows 10 Home
#4
You would be loading it up pretty good, but it should hold on if everything is run at stock and the PSU isn't ancient.
Hmmm ok i might be able to get away with it then? its just for a short period of time to do some benchmarking with but wasnt to sure if the 650 would be enough.

Your HX-650 should be fine for the time being.
But in the long run I would upgrading to a quality PSU that is 750-850W.
The Seasonic X-850 is on sale for $40 less right now if it interests you:
SeaSonic X Series X-850 (SS-850KM Active PFC F3) 8...
I live in Australia, and i was looking at the Corsair CX-750 V3 Power Supply? which should be good and at a not bad price
 

cdawall

where the hell are my stars
Joined
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Messages
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Processor 5960X@4.8 1.42v
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Cooling EK Supremecy EVO, MCR220-Stack+MCR220+MCR320, D5-PWM+EK X-RES 140
Memory 4x8GB G.Skill Trident Z 3200 CL16
Video Card(s) (2) EVGA SC BLACK 1080Ti's+ EVGA reference 1080Ti soon to be under water
Storage Samsung SM951 512GB, Samsung PM961 512GB
Display(s) Dell UP2414Q 3840X2160@60hz
Case Caselabs Mercury S5
Audio Device(s) Fischer HA-02->Fischer FA-002W High edition/FA-003/Jubilate/FA-011 depending on my mood
Power Supply Seasonic Prime 1200w
Mouse Thermaltake Theron
Keyboard Thermaltake Poseidon ZX
Software W10P
Benchmark Scores Zoom zoom mofo
#5
PSU calc puts you around 500W with load. In all reality unless you clock the cards and CPU up it should work for a long period of time. That being said I have skirted that line before. 500W unit to power a 3870X2 and Phenom II X4 with an overclock. Consumption was close to 80% on a day to day basis for 4hrs or so (built a rig for a younger brother) exhaust temps were ridiculous on the PSU, but it lasted about a year. Ended up RMA'ing it and the sent back a 750w which is still chugging along today in a different rig. It all just depends if you have a killawatt meter keep track of consumption and guesstimate using 80% for safety. I wouldn't run over 550W from that unit continuously and try to keep the peaks under 700w (after adjustment).
 
Joined
Mar 18, 2008
Messages
4,511 (1.25/day)
Likes
1,048
Location
Australia
System Name Night Rider | Mini LAN PC | Workhorse
Processor AMD FX 8350 | i7 2600 | i7 970
Motherboard GA-990FXA-UD3 AM3+ | GA-H77M-D3H | Gigabyte EX58-UD5
Cooling AMD Wraith cooler| Coolermaster Gemini with Noctua 3000RPM Fan | Big shairkan B
Memory 4x2GB DDR3 G.Skill 1600 6-8-6-24| 2x4GB Corsair 1600 | 6x2GB DDR3 1300 Corsair
Video Card(s) ASUS GTX 970 OC in Sli | Gainward GTX 650 TI GS | ASUS 7970 Matrix
Storage 250GB Plextor SSD Por 5 /1TB WD Black | 500GB WD ES/WD Black | WD 320/Seagate 320
Display(s) Samsung 2494hs 24" 1080P| Samsung 20" S20C300L/DELL 15" | 22" DELL/19"DELL
Case LIAN LI PC-18 | Mini ATX Case (custom) | Atrix C4 9001
Audio Device(s) Onboard | Onbaord | Onboard
Power Supply Silverstone 750 | Silverstone Mini 450W | Corsair CX-750
Mouse Gigabyte aivia krypton gaming mouse | Rapoo V900 | Gigabyte 6850X
Keyboard MAX Keyboard Nighthawk X8 | Creative Fatal1ty eluminx | Some POS Logitech
Software Windows 7 Pro 64 | Windows 7 Pro 64 | Windows 7 Pro 64/Windows 10 Home
#6
Righto ill give it ago, and hope it dont go bang, least it will save me $120