Overclock.net › Forums › Graphics Cards › AMD/ATI › Need Some Help: Thinking About Crossfiring
New Posts  All Forums:Forum Nav:

Need Some Help: Thinking About Crossfiring

post #1 of 16
Thread Starter 
I've come into a bit of extra money, and have already ordered my XSPC Rasa RS240 watercooling kit.

I am also strongly considering buying another Sapphire Radeon HD6970 AMD Ref Card as I can get one brand new for about $325.00.

My question is, will my current sig rig PSU be able to handle the extra load of adding both a waterpump and another 6970? Or is it time to make the jump to a 1000w PSU?

If I should get a 1000w PSU how is this one? Coolermaster Silent Pro 80+ Gold Rated

And will the Coolermaster be able to fit into my Antec 900 Case?

Any help is truly appreciated I will +rep helpful responses.

*EDIT* Sig isn't showing it but my CPU is overclocked to 4.018GHz @ 1.504v
post #2 of 16
800w should be fine

your pump will only use 12v's anyway.. your set up should peak around 550 - 600w when finished..
Crossfire Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t Asus Crosshair IV Formula XFX HD 6970 x2 in Crossfire Corsair Vengeance (4x4GB @ 1600Mhz) 
Hard DriveOptical DriveOSMonitor
120GB Vertex 3 x2 in Raid 0 & Samsung SP F3 Sony DVD Rewriter Windows 7 Ultimate 64-bit Samsung Syncmaster 22" & Samsung 32" LED Tv 
KeyboardPowerCaseMouse
Zboard Corsair AX850w Corsair 600t Rapoo V3 
Mouse Pad
Steelseries cloth pad 
  hide details  
Reply
Crossfire Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t Asus Crosshair IV Formula XFX HD 6970 x2 in Crossfire Corsair Vengeance (4x4GB @ 1600Mhz) 
Hard DriveOptical DriveOSMonitor
120GB Vertex 3 x2 in Raid 0 & Samsung SP F3 Sony DVD Rewriter Windows 7 Ultimate 64-bit Samsung Syncmaster 22" & Samsung 32" LED Tv 
KeyboardPowerCaseMouse
Zboard Corsair AX850w Corsair 600t Rapoo V3 
Mouse Pad
Steelseries cloth pad 
  hide details  
Reply
post #3 of 16
Thread Starter 
Quote:
Originally Posted by smorg View Post
800w should be fine

your pump will only use 12v's anyway.. your set up should peak around 550 - 600w when finished..
Do you happen to have a link to a calculator? Not that I don't trust what you are saying but I just have this uneasy feeling.
post #4 of 16
Quote:
Originally Posted by ajmidd12 View Post
Do you happen to have a link to a calculator? Not that I don't trust what you are saying but I just have this uneasy feeling.
Link calculator isnt always 100% accurate but I did put a teste between the plug and the computer before i crossfired it.. and the whole computer was only using 350w in benchmarks!

I use this power supply calculator but I figgured i was probably using around 20-30% less than it suggested

http://extreme.outervision.com/psucalculatorlite.jsp

try using one of these to monitor how much power you are really using

http://cgi.ebay.co.uk/monitor-measur...item2eb04c0987
Crossfire Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t Asus Crosshair IV Formula XFX HD 6970 x2 in Crossfire Corsair Vengeance (4x4GB @ 1600Mhz) 
Hard DriveOptical DriveOSMonitor
120GB Vertex 3 x2 in Raid 0 & Samsung SP F3 Sony DVD Rewriter Windows 7 Ultimate 64-bit Samsung Syncmaster 22" & Samsung 32" LED Tv 
KeyboardPowerCaseMouse
Zboard Corsair AX850w Corsair 600t Rapoo V3 
Mouse Pad
Steelseries cloth pad 
  hide details  
Reply
Crossfire Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 1100t Asus Crosshair IV Formula XFX HD 6970 x2 in Crossfire Corsair Vengeance (4x4GB @ 1600Mhz) 
Hard DriveOptical DriveOSMonitor
120GB Vertex 3 x2 in Raid 0 & Samsung SP F3 Sony DVD Rewriter Windows 7 Ultimate 64-bit Samsung Syncmaster 22" & Samsung 32" LED Tv 
KeyboardPowerCaseMouse
Zboard Corsair AX850w Corsair 600t Rapoo V3 
Mouse Pad
Steelseries cloth pad 
  hide details  
Reply
post #5 of 16
Thread Starter 
Quote:
Originally Posted by smorg View Post
Link calculator isnt always 100% accurate but I did put a teste between the plug and the computer before i crossfired it.. and the whole computer was only using 350w in benchmarks!

I use this power supply calculator but I figgured i was probably using around 20-30% less than it suggested

http://extreme.outervision.com/psucalculatorlite.jsp

try using one of these to monitor how much power you are really using

http://cgi.ebay.co.uk/monitor-measur...item2eb04c0987
Thanks for the help +rep, I did try one of those calculators, and with the current setup in Crossfire it showed me using 864w so that is why I am worried

I don't want to go to a 1000w PSU unless I absolutely have to since I have heard using less than 75% of the PSU's supply can hurt it in the long run (don't know if there is any truth to that or not though).

How do you like the cards in crossfire? Pretty much as beastly as you can get without spending an insane amount of money.
post #6 of 16
See my sig rig. XSPC RASA kit with a few lighting bling. All being powered by my tried and trusted 750 watt. Cannot get any real than this. BTW, the RX360 will be a better rad for crossfire 6970 and CPU.
Wife's bane
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K @ 4.5 Ghz Gigabyte Z77 UD3H HIS R9-290 8 GB Samsung Wonder RAM 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD for OS Samsung Spinpoint F3 Asus XSPC water block, 360 radiator, and 720 reservo... 
CoolingOSMonitorKeyboard
GPU cooling - XSPC Razer full GPU blocks Win 7 Home Premium Asus PB278Q 2560 X 1440p ISP Logitech G15 
PowerCaseMouseMouse Pad
NZXT Hale90 V2 NZXT Switch 810 Logitech G500 Steelseries QcK 
Audio
Optical out to Sony receiver; Deftech Monitor 3... 
  hide details  
Reply
Wife's bane
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K @ 4.5 Ghz Gigabyte Z77 UD3H HIS R9-290 8 GB Samsung Wonder RAM 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD for OS Samsung Spinpoint F3 Asus XSPC water block, 360 radiator, and 720 reservo... 
CoolingOSMonitorKeyboard
GPU cooling - XSPC Razer full GPU blocks Win 7 Home Premium Asus PB278Q 2560 X 1440p ISP Logitech G15 
PowerCaseMouseMouse Pad
NZXT Hale90 V2 NZXT Switch 810 Logitech G500 Steelseries QcK 
Audio
Optical out to Sony receiver; Deftech Monitor 3... 
  hide details  
Reply
post #7 of 16
I concur with these guys, that PS will be plenty
Sweaty Box
(10 items)
 
Stacker T01 v5.0
(10 items)
 
Sturbin' Box
(13 items)
 
CPUMotherboardGraphicsRAM
i7 5960X ASUS Rampage V Extreme 2x Nvidia 1080ti SLI 32GB Corsair Dominator DDR4 3400Mhz 
Hard DriveCoolingOSMonitor
Samsung 850 pro NVMe M.2 Custom EK watercooled loop Windows 10 Pro Triple LG 4K 27" 
PowerCase
Cosair 1500Ti CaseLabs M10 
CPUMotherboardGraphicsRAM
Delidded i7 3770K @ 5Ghz ASUS Maximus V Gene EVGA GTX 670 SLI - Heatkiller Blocks 16GB Corsair Vengeance DDR3 @ 2400Mhz 
Hard DriveCoolingOSMonitor
Samsung 840 EVO Custom Loop - EK Supreme HF Windows 7 Pro 64-bit Dell 30" + 2 x Dell 24" 
PowerCase
Sparkle Gold 1200W CM Stacker T01 
CPUMotherboardGraphicsRAM
Phenom II X6 1055T @4.0GHz (308x13) / 3.08GHz NB ASUS Crosshair IV Formula w/EK full coverage block ATI 5870x2 Crossfired @ 950/1250 8GB Corsair Vengeance DDR3 1600 
Hard DriveCoolingOSMonitor
OCZ Vertex 3 SSD Swifttech Apogee Drive Block/Pump Windows 7 64bit Pro ASUS 27" LCD 
PowerCase
Corsair Professional Series Gold 650W  Lian-Li PC-650A 
  hide details  
Reply
Sweaty Box
(10 items)
 
Stacker T01 v5.0
(10 items)
 
Sturbin' Box
(13 items)
 
CPUMotherboardGraphicsRAM
i7 5960X ASUS Rampage V Extreme 2x Nvidia 1080ti SLI 32GB Corsair Dominator DDR4 3400Mhz 
Hard DriveCoolingOSMonitor
Samsung 850 pro NVMe M.2 Custom EK watercooled loop Windows 10 Pro Triple LG 4K 27" 
PowerCase
Cosair 1500Ti CaseLabs M10 
CPUMotherboardGraphicsRAM
Delidded i7 3770K @ 5Ghz ASUS Maximus V Gene EVGA GTX 670 SLI - Heatkiller Blocks 16GB Corsair Vengeance DDR3 @ 2400Mhz 
Hard DriveCoolingOSMonitor
Samsung 840 EVO Custom Loop - EK Supreme HF Windows 7 Pro 64-bit Dell 30" + 2 x Dell 24" 
PowerCase
Sparkle Gold 1200W CM Stacker T01 
CPUMotherboardGraphicsRAM
Phenom II X6 1055T @4.0GHz (308x13) / 3.08GHz NB ASUS Crosshair IV Formula w/EK full coverage block ATI 5870x2 Crossfired @ 950/1250 8GB Corsair Vengeance DDR3 1600 
Hard DriveCoolingOSMonitor
OCZ Vertex 3 SSD Swifttech Apogee Drive Block/Pump Windows 7 64bit Pro ASUS 27" LCD 
PowerCase
Corsair Professional Series Gold 650W  Lian-Li PC-650A 
  hide details  
Reply
post #8 of 16
Thread Starter 
Quote:
Originally Posted by Awaz View Post
See my sig rig. XSPC RASA kit with a few lighting bling. All being powered by my tried and trusted 750 watt. Cannot get any real than this. BTW, the RX360 will be a better rad for crossfire 6970 and CPU.
Thanks

This RS240 is only for the CPU loop and MAYBE a mobo loop if/when the Crosshair V is released. Otherwise when I add my GPU loop I will get another RS/RX240 dedicated for the GPU's only. But by then I will probably get the Corsair Obsidian 800d case with enough room for everything. For now it will be fun to try and fit the 240 inside my antec 900.

Thanks again!
post #9 of 16
Quote:
Originally Posted by ajmidd12 View Post
Thanks

This RS240 is only for the CPU loop and MAYBE a mobo loop if/when the Crosshair V is released. Otherwise when I add my GPU loop I will get another RS/RX240 dedicated for the GPU's only. But by then I will probably get the Corsair Obsidian 800d case with enough room for everything. For now it will be fun to try and fit the 240 inside my antec 900.

Thanks again!
Cool. If you just run CPU and two GPU in the same loop, one RX360 is plenty. I do not break 45c on my GPU when gaming or folding (depending on ambient). And the RASA kit pump will serve you well. Dual 240 rads will also give you good temps and I think just for two of those rads, CPU and GPUs, your pump will still be good. However, if you go motherboard block, you will either need two pumps or need a more powerful pump - motherboard blocks are very restrictive. IMO, motherboard watercooling just looks cool - but not very practical.
Wife's bane
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K @ 4.5 Ghz Gigabyte Z77 UD3H HIS R9-290 8 GB Samsung Wonder RAM 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD for OS Samsung Spinpoint F3 Asus XSPC water block, 360 radiator, and 720 reservo... 
CoolingOSMonitorKeyboard
GPU cooling - XSPC Razer full GPU blocks Win 7 Home Premium Asus PB278Q 2560 X 1440p ISP Logitech G15 
PowerCaseMouseMouse Pad
NZXT Hale90 V2 NZXT Switch 810 Logitech G500 Steelseries QcK 
Audio
Optical out to Sony receiver; Deftech Monitor 3... 
  hide details  
Reply
Wife's bane
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K @ 4.5 Ghz Gigabyte Z77 UD3H HIS R9-290 8 GB Samsung Wonder RAM 
Hard DriveHard DriveOptical DriveCooling
Crucial SSD for OS Samsung Spinpoint F3 Asus XSPC water block, 360 radiator, and 720 reservo... 
CoolingOSMonitorKeyboard
GPU cooling - XSPC Razer full GPU blocks Win 7 Home Premium Asus PB278Q 2560 X 1440p ISP Logitech G15 
PowerCaseMouseMouse Pad
NZXT Hale90 V2 NZXT Switch 810 Logitech G500 Steelseries QcK 
Audio
Optical out to Sony receiver; Deftech Monitor 3... 
  hide details  
Reply
post #10 of 16
Thread Starter 
Quote:
Originally Posted by Awaz View Post
Cool. If you just run CPU and two GPU in the same loop, one RX360 is plenty. I do not break 45c on my GPU when gaming or folding (depending on ambient). And the RASA kit pump will serve you well. Dual 240 rads will also give you good temps and I think just for two of those rads, CPU and GPUs, your pump will still be good. However, if you go motherboard block, you will either need two pumps or need a more powerful pump - motherboard blocks are very restrictive. IMO, motherboard watercooling just looks cool - but not very practical.
Not practical at all unless you are a person like me who wants to overclock the tits out of his soon to be new Bulldozer and Asus Crosshair V 990FX mobo

It all depends on how much room the Corsair Obsidian has, as I am not willing to get rid of my fan controller and Blu-ray drive to incorporate another pump/res combo.

Thanks for the advice gents, I just purchased the second HD6970, now to go home Crossfire it, and then overclock them both to 940/1440
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Need Some Help: Thinking About Crossfiring