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Do I need a new PSU for 7870 CF?

post #1 of 8
Thread Starter 
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=zgq69hzxdwu2

Hello,
this is the one i have been currently using for the past two years... I've looked everywhere online that a "good 650w psu" will be good enough to power 2 7870's at once.
I currently have a 4.5ghz oc'd i5 2500k, and a single 7870.. Definitely want to move up to crossfire...
Also,
I know this PSU only has two pci-e connectors, and i know people don't recommend using the molex connectors, but why?

Don't have much money that I could be spending around.... so It'll be great if I can still use this PSU. What are your thoughts?
Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
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Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
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post #2 of 8
No thats more than enough. Enjoy it!
Queso Fresco
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Queso Fresco
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post #3 of 8
Quote:
Originally Posted by dumbkkid View Post

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371015&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=zgq69hzxdwu2
Hello,
this is the one i have been currently using for the past two years... I've looked everywhere online that a "good 650w psu" will be good enough to power 2 7870's at once.
I currently have a 4.5ghz oc'd i5 2500k, and a single 7870.. Definitely want to move up to crossfire...
Also,
I know this PSU only has two pci-e connectors, and i know people don't recommend using the molex connectors, but why?
Don't have much money that I could be spending around.... so It'll be great if I can still use this PSU. What are your thoughts?

headscratch.gif

You should be fine btw but um...your PSU has 666 reviews devil.gif
 
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Play Server
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NAS
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CPUCPUMotherboardRAM
Intel Xeon L5640 Intel Xeon L5640 Dell R710 Mobo Hynix 144GB DDR3 ECC PC3L-10600R 
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Intel X25-M G2 80GB Redundant 840W PSU Dell 710 2.5" - Google Search Appliance Dell Perc H700 Raid Controller 
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post #4 of 8
Thread Starter 
Haha, I can't be spending much money around AFTER my 7870 ;]
Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
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Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
  hide details  
Reply
post #5 of 8
Thread Starter 
Quote:
Originally Posted by Quesoblanco View Post

No thats more than enough. Enjoy it!

Thanks!

Anyone else has an input? I just want to make 100% sure before I make that decision to even go for another 7870!
Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
  hide details  
Reply
Nick
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5-2500k@4.5Ghz 1.32V ASRock P67 Extreme4 Visiontek Radeon HD 7870 2GB 16GB(2x8GB) G.Skill Ripjaws DDR3 PC3-12800 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB Sata Optiarc DVD-RW AD-7200A Windows 7 x64 iMac 27" 
PowerCase
Antec Earthwatts EA650 650W Antec 900 
  hide details  
Reply
post #6 of 8
 
Play Server
(10 items)
 
NAS
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CPUCPUMotherboardRAM
Intel Xeon L5640 Intel Xeon L5640 Dell R710 Mobo Hynix 144GB DDR3 ECC PC3L-10600R 
Hard DrivePowerCaseOther
Intel X25-M G2 80GB Redundant 840W PSU Dell 710 2.5" - Google Search Appliance Dell Perc H700 Raid Controller 
OtherOther
Dell iDRAC6 Enterprise Mellanox Connectx-2 10Gb SFP+ NIC 
CPUCPUMotherboardRAM
Intel Xeon E5-2670 v1 Intel Xeon E5-2670 v1 SuperMicro X9DRL-iF 64GB Kingston ECC (kvr16r11d4/16HA) 
Hard DriveHard DriveHard DriveCooling
12x 4TB HGST 5K4000 SanDisk SSD 960GB (cache) 6x 8TB WD Red Scythe AP-29 
CoolingOSPowerCase
2x Noctua U9DXi4 FreeNAS Corsair AX750 Norco RPC-4224 
OtherOther
3x LSI 9211-8i (HBA) Mellanox Connectx-2 10Gb NIC 
  hide details  
Reply
 
Play Server
(10 items)
 
NAS
(14 items)
 
CPUCPUMotherboardRAM
Intel Xeon L5640 Intel Xeon L5640 Dell R710 Mobo Hynix 144GB DDR3 ECC PC3L-10600R 
Hard DrivePowerCaseOther
Intel X25-M G2 80GB Redundant 840W PSU Dell 710 2.5" - Google Search Appliance Dell Perc H700 Raid Controller 
OtherOther
Dell iDRAC6 Enterprise Mellanox Connectx-2 10Gb SFP+ NIC 
CPUCPUMotherboardRAM
Intel Xeon E5-2670 v1 Intel Xeon E5-2670 v1 SuperMicro X9DRL-iF 64GB Kingston ECC (kvr16r11d4/16HA) 
Hard DriveHard DriveHard DriveCooling
12x 4TB HGST 5K4000 SanDisk SSD 960GB (cache) 6x 8TB WD Red Scythe AP-29 
CoolingOSPowerCase
2x Noctua U9DXi4 FreeNAS Corsair AX750 Norco RPC-4224 
OtherOther
3x LSI 9211-8i (HBA) Mellanox Connectx-2 10Gb NIC 
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Reply
post #7 of 8
Everybody is going to say the same thing. Grab that 7870 and enjoy awesome performance.thumb.gif
Queso Fresco
(15 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 5 1600 MSI B350 Bazooka ASUS Turbo GTX 1060  T-Force DDR4 3000 16gb 
Hard DriveHard DriveCoolingOS
Samsung 840 250gb Intel 320 160gb SilverStone Heligon HE01 Windows 10 
MonitorKeyboardPowerCase
Achieva Shimian  Monoprice MX Black SeaSonic X-750 Corsair 350D 
Mouse
Logitech G403 
  hide details  
Reply
Queso Fresco
(15 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 5 1600 MSI B350 Bazooka ASUS Turbo GTX 1060  T-Force DDR4 3000 16gb 
Hard DriveHard DriveCoolingOS
Samsung 840 250gb Intel 320 160gb SilverStone Heligon HE01 Windows 10 
MonitorKeyboardPowerCase
Achieva Shimian  Monoprice MX Black SeaSonic X-750 Corsair 350D 
Mouse
Logitech G403 
  hide details  
Reply
post #8 of 8
Quote:
Originally Posted by Quesoblanco View Post

Everybody is going to say the same thing. Grab that 7870 and enjoy awesome performance.thumb.gif

Yep!
Use one of the molex adapters on each card also. Just so you have one actual 6-Pin PCI-E on each.
 
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Seven Seven Five
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NASSY
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CPUMotherboardGraphicsRAM
Convertible i5 3570k (De-Lidded) Gigabyte Z77x-D3H XFX R9 290 With Koolance Block (1179/1450) 16GB G-Skill Ares 1866 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo Seagate Barracuda 2TB 1x OEM DVD Drives Heatkiller Rev 3.0 
CoolingCoolingCoolingCooling
XSPC RX360 Laing D5 + XSPC Res Primochill Bloodshed Red Tubing Koolance Fullcover R9 290x Block 
CoolingOSMonitorMonitor
XSPC EX360 Windows 10 Pro x64 Asus VEH228H Asus VE228H 
MonitorKeyboardPowerCase
Aavara TS742 Dual Monitor Stand Ducky Shine II Cherry Blue RED Backlit Mechanic... Silverstone Strider 850W Thermaltake Core x71 Tempered Glass Riing Edition 
MouseMouse PadAudioOther
Zowie FK1 House of Stealth Microlab Solo6c Logitech C100 Webcam 
CPUGraphicsRAMHard Drive
Celeron N3160 HD Graphics 400 4GB DDR3 4TB WD Red 
Cooling
Some 120mm fan 
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