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Recommended PSU for HD6870

post #1 of 12
Thread Starter 
So i recently upgraded my graphics card and realised that my current psu will not be able to handle it.

Current psu: http://www.play.com/PC/PCs/4-/10136881/CiT-650U-650W-PSU-Power-Supply-Unit-Gold/Product.html
(i know it's pretty bad but i had to get a quick replacement when my old psu was showing signs of failure)

I have asked this question on another forum and they have advised a decent 650W minimum, such as : http://www.ebuyer.com/257232-corsair-tx-650w-v2-psu-80plus-bronze-certified-cmpsu-650txv2uk

I was going to follow their advice until i found a thread on this website where several people were talking about how people on that website overestimate power draw. So i thought i may as well ask on this site as well before i waste my money smile.gif

So yeah, any recommendations?
Thanks in advance.
My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
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My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
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post #2 of 12
Unless you're running a dual CPU rig 650W makes for a gross overestimation.
List you're full system specs and your budget for the PSU.
post #3 of 12
im running that same psu and it is handling 6870 crossfire just fine. defiantly would recommend it. also make sure you put your current specs of your system in the UserCP
Node
(8 items)
 
Exia
(13 items)
 
Kyrios
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CPUMotherboardGraphicsRAM
Intel i5-7500t Asus h270 Strix EVGA Geforce GTX 1070 SC Crucial Ballistix Sport DDR4 2400 2x8gb 
Hard DriveCoolingOSCase
Samsung PM961 256gbx2 RAID 0 Cryorig C7 Windows 10 Pro Fractal Design Node 202 
CPUCPUMotherboardGraphics
Intel Xeon E5-2690 Intel Xeon E5-2690 Asus Z9PE-D8 WS EVGA GTX 1070 SC 
RAMHard DriveHard DriveCooling
Kingston HyperX 1866mhz 8x4gb Intel 120gb SSD (OS) 10tb worth of HDDs Noctua NH-C14s 
OSKeyboardPowerCase
Windows 10 Pro Corsair Strafe RGB Cooler Master Silent Pro Hybrid 850w Silverstone TJ10-BW 
Mouse
Corsair Scimitar PRO RGB 
CPUMotherboardGraphicsRAM
Intel Xeon X5550 Asus P6T Deluxe HIS HD 6870 2gb Crucial Ballistix Tactical Tracer 6x2gb 1600mhz 
Hard DriveCoolingOSPower
Crucial M4 128gb Cooler Master TPC-812 Windows 10 Pro Corsiar HX650 
Case
NZXT S340 White 
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Node
(8 items)
 
Exia
(13 items)
 
Kyrios
(9 items)
 
CPUMotherboardGraphicsRAM
Intel i5-7500t Asus h270 Strix EVGA Geforce GTX 1070 SC Crucial Ballistix Sport DDR4 2400 2x8gb 
Hard DriveCoolingOSCase
Samsung PM961 256gbx2 RAID 0 Cryorig C7 Windows 10 Pro Fractal Design Node 202 
CPUCPUMotherboardGraphics
Intel Xeon E5-2690 Intel Xeon E5-2690 Asus Z9PE-D8 WS EVGA GTX 1070 SC 
RAMHard DriveHard DriveCooling
Kingston HyperX 1866mhz 8x4gb Intel 120gb SSD (OS) 10tb worth of HDDs Noctua NH-C14s 
OSKeyboardPowerCase
Windows 10 Pro Corsair Strafe RGB Cooler Master Silent Pro Hybrid 850w Silverstone TJ10-BW 
Mouse
Corsair Scimitar PRO RGB 
CPUMotherboardGraphicsRAM
Intel Xeon X5550 Asus P6T Deluxe HIS HD 6870 2gb Crucial Ballistix Tactical Tracer 6x2gb 1600mhz 
Hard DriveCoolingOSPower
Crucial M4 128gb Cooler Master TPC-812 Windows 10 Pro Corsiar HX650 
Case
NZXT S340 White 
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post #4 of 12
The minimum for a 6870 should be ~450w, a 650w psu can easily handle 6870 crossfire.

Edit - Where are you buying from?
Edited by Kasp1js - 10/23/11 at 10:43am
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
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Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
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Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
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post #5 of 12
I ran an overclocked i7 system with tons of fans and a raid setup plus a 6950 unlocked and overclocked with a corsair HX520 with no problems. I thought I had power problems, so I bought the GS700 which I have now, but it ended up being something completely unrelated.
Asus ROG G751JY
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Thermaltake Massive 14² Windows 10 x64 LG-D046C IPS @ 100hz  Corsair K70 Mechanical Gaming Keyboard 
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230W Power Brick Asus ROG G751JY Logitech G502 Proteus Core RGB + G500 for travel HyperX smooth surface + Corsair hard surface fo... 
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Asus ROG G751JY
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 4710HQ @ 3.4 Intel H87 GTX 980m @ 1262/5410 w/PREMA BIOS v1.1.1 + Dre... 24GB 1600mhz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung m.2 PCIE SSD OCZ Vertex 3 Samsung Evo 850 Bluray reader/writer 
CoolingOSMonitorKeyboard
Thermaltake Massive 14² Windows 10 x64 LG-D046C IPS @ 100hz  Corsair K70 Mechanical Gaming Keyboard 
PowerCaseMouseMouse Pad
230W Power Brick Asus ROG G751JY Logitech G502 Proteus Core RGB + G500 for travel HyperX smooth surface + Corsair hard surface fo... 
AudioAudioAudio
Sound Blaster Omni 5.1 USB w/dual array mic Ultrasone Pro 750 Sennheiser HD598 Special Edition 
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post #6 of 12
Thread Starter 
Quote:
Originally Posted by Unoriginal Sin;15421160 
Unless you're running a dual CPU rig 650W makes for a gross overestimation.
List you're full system specs and your budget for the PSU.

I have put what i can remember off the top of my head in the system specs. I'm not sure on my budget probably around £50 but i will be willing to pay more if i cannot get a good enough psu for that price.
Quote:
Originally Posted by Kasp1js;15421207 
The minimum for a 6870 should be ~450w, a 650w psu can easily handle 6870 crossfire.

Edit - Where are you buying from?

I'm buying from the UK. Preferably overclockers.co.uk overclock.co.uk or ebuyer.com but anywhere reliable that ships to uk is fine.
Edited by ph9 - 10/23/11 at 10:47am
My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
  hide details  
Reply
My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
  hide details  
Reply
post #7 of 12
Pick one of these units, Thermaltake XT 575, Antec TPN 550, Antec HCG 520 or Be Quiet EP 600, all of them are solid units.. I would pick the XT 575 because is the best deal of the four but either will do well with even 6870 CFX(except the HCG).
post #8 of 12
my manual says a minimum of 500W of good quality (80 plus cert). 650W for crossfire.
Second Intel Rig
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2700 4.5/ 1.28 77 1050 16 / 1866 
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1000 212 10 64 32 1080 
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700 912 
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Second Intel Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 1050 16 / 1866 
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1000 212 10 64 32 1080 
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700 912 
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post #9 of 12
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
post #10 of 12
Thread Starter 
Quote:

Well the manual that came with the card recommends not to use adapters so i'd rather use one with 2 6pin connectors. I'm thinking of getting either the Thermaltake 575W or the XFX Pro 450W.

Thanks for the help (:
My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
  hide details  
Reply
My System
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD Phenom II X4 955 ATI HD 6870 2x2GB DDR3 Western Digital Caviar Green 1TB 
OSMonitor
Windows 7 Professional 64bit 24" LG Monitor 
  hide details  
Reply
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