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500w PSU with 6870?

post #1 of 29
Thread Starter 
Hey guys

Is this power supply enough to run a 6870 along with my current setup? Or do I need to look for something lower than that?

Voltage calculator says 433w but I don't know if that's at idle or under load?

It says this on the newegg page:
Quote:
System requirements: 500 Watt or greater power supply

Also I know my PSU only has 1x6 pin connector...but I guess I can buy an adapter for one of my other plugs?

Thanks,
Elliott
Edited by Starholdest - 11/24/11 at 3:58pm
2011
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Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
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80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
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2011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
Hard DriveOptical DriveCoolingOS
80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
MonitorKeyboardPowerCase
Asus VH238H Black 23" Full HD - LED Backlit Microsoft Media Pro Antec Earthwatts 600w Antec 900 (modded) 
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Logitech MX518 Steelpad 5L 
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post #2 of 29
A good 500w will do it easily. That one isn't good. All I've heard about the cheap thermaltakes (the purepower line) is that they are poor quality and not able to output their rated power. The more expensive toughpower ones are supposedly very good though. Its not the worse power supply ever, there are ones not even half as good as that, but i still wouldn't want to run a 6870 on one.

There is a list of reccomended power supplies here, pick one of them that you think best suits your needs. No need to go overboard, 500w is easily enough.
Edited by alltoasters - 11/24/11 at 4:05pm
     
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post #3 of 29
if you do not plan on adding another card in the future - yes. i added a 50 to the minimum system requirement to be safe.
also it would be great if you find one that is 80 plus certified.

if you plan on adding another card go with a 650W.
Second Intel Rig
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2700 4.5/ 1.28 77 290 (2) 16 / 1866 
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Second Intel Rig
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2700 4.5/ 1.28 77 290 (2) 16 / 1866 
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1000 360/240 10 64 28 2160 
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850 540 
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post #4 of 29
Thread Starter 
Thanks.

I don't plan on getting another card...or another power supply for that matter...don't want to spend THAT much money...if I can get away with a 6870 on this 500w then that would be great...

I just calculated it for my old 8800GTS 320mb and it shows it at 415w...not a big jump from 415w to 433w, right?

Although I never ran my 8800GTS with this system because it's dead...
Edited by Starholdest - 11/24/11 at 4:16pm
2011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
Hard DriveOptical DriveCoolingOS
80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
MonitorKeyboardPowerCase
Asus VH238H Black 23" Full HD - LED Backlit Microsoft Media Pro Antec Earthwatts 600w Antec 900 (modded) 
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Logitech MX518 Steelpad 5L 
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2011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
Hard DriveOptical DriveCoolingOS
80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
MonitorKeyboardPowerCase
Asus VH238H Black 23" Full HD - LED Backlit Microsoft Media Pro Antec Earthwatts 600w Antec 900 (modded) 
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Logitech MX518 Steelpad 5L 
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post #5 of 29
That PSU may run the system, but I wouldn't risk it. Even though it may be able to handle the load, a cheap PSU can cause a lot of problems. Especially if it's constantly working its hardest to power your system. If it shorts, it can take your whole system with it. It's worth it to invest in a better one.
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post #6 of 29
Thread Starter 
Thanks. So what's a card that's just under the 6870, performs almost as good and takes less power?
2011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
Hard DriveOptical DriveCoolingOS
80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
MonitorKeyboardPowerCase
Asus VH238H Black 23" Full HD - LED Backlit Microsoft Media Pro Antec Earthwatts 600w Antec 900 (modded) 
MouseMouse Pad
Logitech MX518 Steelpad 5L 
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Reply
2011
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom X4 955 BE @ 3.2Ghz Gigabyte 880GA-UD3H XFX 6870 Dual Fan  4Gb G.Skill Ripjaw 1333Mhz 
Hard DriveOptical DriveCoolingOS
80Gb Seagate SATA LG DVD+ Zalman CNPS 9700 Windows 7 64 bit 
MonitorKeyboardPowerCase
Asus VH238H Black 23" Full HD - LED Backlit Microsoft Media Pro Antec Earthwatts 600w Antec 900 (modded) 
MouseMouse Pad
Logitech MX518 Steelpad 5L 
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post #7 of 29
Quote:
Originally Posted by Starholdest View Post

Thanks. So what's a card that's just under the 6870, performs almost as good and takes less power?

I wouldn't chose a lighter video card, I would chose a better power supply. As I said before, crappy power supplies are not worth keeping to save a couple bucks. I would rather spend a little extra now than have the PSU blow up and destroy every part of your computer with a power surge.
Lots of quality PSUs pop up on the marketplace for very cheap.
The Mutt
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The Mutt
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Hard DriveCoolingMonitorKeyboard
A lot. Corsair H75 QNIX 1440p Steelseries 6Gv2 
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post #8 of 29
You will be fine. Just get a molex to pci-e adapter for one of the power connectors and it should run it.

Or get one of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
Edited by Grath - 11/24/11 at 4:25pm
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post #9 of 29
Oh, wow. You've got more than enough. I've the same CPU, but I've got a considerably more power-hungry HD6950. The peak power consumption on full load barely reaches 450W on my system. I have a 620W power supply.

You should be perfectly fine on a 500W PSU powering HD6870.

However, I question your choice of video card, as it is a terrible value. The HD6850 is a lot cheaper and only slightly less powerful.
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post #10 of 29
the 6850 uses less power and just as good as the 6870.
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
  hide details  
Reply
Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
  hide details  
Reply
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