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New Build: Help with PSU

post #1 of 5
Thread Starter 
I am in the process of putting together a new mid/budget build. Below are the specs:
At the moment, I am reusing the Graphics Card, Tower, PSU, HDD and DVD RW (everything is around 3+ years).
But I just purchased a new graphics card and I am considering getting a new PSU as well

CPU: i5 2500k

MOBO: Gigabyte Z68-AP-D3

RAM: 8gb 1600 DDR3 (it was rated at 1.65, but the bios say its running at 1.5... which I am perfectly happy with given the price I got it at)

PSU: ULTRA 500W, with 12v rails rated at 16A (12V1) and 18A(12V2) for a total of 384W.
+5V and +3.3V running at 30A each (total of 160W)

Vid Card: Geforce 7900 GS

HDD: 1X SATA2 Drive (will be adding one more in the future)
DVD: 1X DVD RW

I just purchased a Sapphire 6870 (http://www.newegg.com/Product/Product.aspx?Item=N82E16814102948). It requires a 500W PSU with two PCIe 12V rails at 75 W each.

I was wondering if my PSU would be able to handle it? PSU is around 3+ years old. No issues what so ever till now.
I am considering buying a new PSU but have a budget of around $50. I do not plan on Crossfiring or overclocking. Just Casual gaming when time permits. Do you guys have any suggestions for PSUs that can smoothly run my build?

Thanks for your input.
post #2 of 5
Swap it out for a Corsair CX500 or CX600! Better quality and handles 6870 no problem!thumb.gif
Computer 1
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASUS P8Z77-V PRO EVGA GTX 770 ACX Corsair 2 x 4GB DDR3 1600MHz 
Hard DriveHard DriveCoolingOS
Samsung 840 Evo 250GB Western Digital Blue 1TB Cooler Master Hyper 212 EVO Windows 8.1 Pro x64 
MonitorKeyboardPowerCase
ASUS VS248H-P Cooler Master Quickfire Rapid MX Blue Corsair AX650 Fractal Design Define R4 
MouseMouse PadAudioAudio
Logitech G502 YuHua Gaming Mouse Pad Logitech Z323 Sennheiser HD 558 
Audio
Creative Soundblaster Z 
  hide details  
Reply
Computer 1
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASUS P8Z77-V PRO EVGA GTX 770 ACX Corsair 2 x 4GB DDR3 1600MHz 
Hard DriveHard DriveCoolingOS
Samsung 840 Evo 250GB Western Digital Blue 1TB Cooler Master Hyper 212 EVO Windows 8.1 Pro x64 
MonitorKeyboardPowerCase
ASUS VS248H-P Cooler Master Quickfire Rapid MX Blue Corsair AX650 Fractal Design Define R4 
MouseMouse PadAudioAudio
Logitech G502 YuHua Gaming Mouse Pad Logitech Z323 Sennheiser HD 558 
Audio
Creative Soundblaster Z 
  hide details  
Reply
post #3 of 5
Thread Starter 
Thanks. I'm checking those models out on newegg as we speak.
One thing that I still find confusing are the 12V rails. Some PSU's only have one 12V rail listed (but appear to have two 6 pin connectors). How can I tell if its enough for my graphics card?
For example:
PCIe 6pin x 1. 12V @ 40 A
PCIe 6+2pin X1. No info given about this one. It seems to be coming off the same 12V line.

Sorry if that was a stupid question.
Thanks.
post #4 of 5
Thread Starter 
post #5 of 5
I'd much rather you go with a Corsair PSU (most reliable), but if you must get OCZ, then ok, at least the +12V rails are decent. What you mainly want to look at (when buying a PSU) these days, is the +12V. Generally, you'll want something over 30amps on the +12V rail. Multirails work like this: Each +12V rail is dedicated to one PCIE connector, so if you have two rails, then the first +12V rail will be dedicated to one of the PCIE connectors and vice versa.
Computer 1
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASUS P8Z77-V PRO EVGA GTX 770 ACX Corsair 2 x 4GB DDR3 1600MHz 
Hard DriveHard DriveCoolingOS
Samsung 840 Evo 250GB Western Digital Blue 1TB Cooler Master Hyper 212 EVO Windows 8.1 Pro x64 
MonitorKeyboardPowerCase
ASUS VS248H-P Cooler Master Quickfire Rapid MX Blue Corsair AX650 Fractal Design Define R4 
MouseMouse PadAudioAudio
Logitech G502 YuHua Gaming Mouse Pad Logitech Z323 Sennheiser HD 558 
Audio
Creative Soundblaster Z 
  hide details  
Reply
Computer 1
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASUS P8Z77-V PRO EVGA GTX 770 ACX Corsair 2 x 4GB DDR3 1600MHz 
Hard DriveHard DriveCoolingOS
Samsung 840 Evo 250GB Western Digital Blue 1TB Cooler Master Hyper 212 EVO Windows 8.1 Pro x64 
MonitorKeyboardPowerCase
ASUS VS248H-P Cooler Master Quickfire Rapid MX Blue Corsair AX650 Fractal Design Define R4 
MouseMouse PadAudioAudio
Logitech G502 YuHua Gaming Mouse Pad Logitech Z323 Sennheiser HD 558 
Audio
Creative Soundblaster Z 
  hide details  
Reply
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