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Xfire GPU spacing question.

post #1 of 8
Thread Starter 
Will a single PCI-E slot allow enough space between GPU's to sufficient cooling?

With AMD's "frame pacing" drivers I may give crossfire a go when BF4 comes out. This will give them enough time to work out the kinks. I currently have a single MSI 7850 OC. I'm using a Z77 Pro4. If I were to run crossfire I'd pick up this exact card. I understand in the dual GPU solution world that blower coolers are preferred. This is why I ask.
post #2 of 8
As for my experience, yes I think so but it was my first time to xfire. I xfired vapor x 7950 and the space between is sufficient. My board is z77 proffesional. However, I notice a huge heat coming out from top card thats why I am upgrading my case to Raven RV03. I hope it does help though but I have to wait till next for the new case.

Cards are overclocked and Im gaming 30" 2560 x 1600 monitor so the cards are working really hard
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(10 items)
 
   
CPUMotherboardGraphicsRAM
i5 4570 Asus Z87-m Plus Zotac GTX 750 ti OC 8gb (4gb x 2) Samsung DDR3 1333 LV 
Hard DriveHard DriveCoolingOS
Western Digital 1tb Seagate 2tb stock Windows 8.1 Pro 
MonitorCase
HP Elitedisplay E231 abko ncore s2 mini tower 
CPUMotherboardGraphicsGraphics
i7 4770k Gigabyte G1 Sniper 5 XFX r9 290 XFX R9 290X BF4 Edition 
GraphicsGraphicsRAMHard Drive
Power color R9 290 Sapphire R9 290X BF4 Edition G.Skill Trident X 2666 mhz CL12 Samsung 840 EVO 250gb 
Optical DriveCoolingOSMonitor
Samsung DVD writer Custom Water cooling WIndows 8.1 Professional Crossover 3020MDP 
MonitorMonitorKeyboardPower
Crossover 30X-P  Crossover 30X-p Steel Series 6Gv2 Mechanical Keyboard with Cher... Corsair ax1500i 
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post #3 of 8
Quote:
Originally Posted by nightfox View Post

As for my experience, yes I think so but it was my first time to xfire. I xfired vapor x 7950 and the space between is sufficient. My board is z77 proffesional. However, I notice a huge heat coming out from top card thats why I am upgrading my case to Raven RV03. I hope it does help though but I have to wait till next for the new case.

Cards are overclocked and Im gaming 30" 2560 x 1600 monitor so the cards are working really hard

Hmm. Vapor-X 7950 is 2.5 slots, so thus on a normal Z77 you should only have half a slot between the cards. Just saying.
post #4 of 8
Quote:
Originally Posted by JJ1217 View Post

Hmm. Vapor-X 7950 is 2.5 slots, so thus on a normal Z77 you should only have half a slot between the cards. Just saying.

yeah but its not 2.5 slot. more like a 2.2 max. anyway, i exchanged my new vapor x to another new model (same vapor x of course) as 2 days of my excessive tests its not behaving normally. so i ask my retailer a new one. but my initial crosfiring of vapor x looks so damn sexy in the case. i like how they look and even i dont have to oc much, just on boost bios, i could max out bioshock at 2560x1600 with 60 fps. im still at latest drivers. not beta.thumb.gif
my budget gaming
(10 items)
 
   
CPUMotherboardGraphicsRAM
i5 4570 Asus Z87-m Plus Zotac GTX 750 ti OC 8gb (4gb x 2) Samsung DDR3 1333 LV 
Hard DriveHard DriveCoolingOS
Western Digital 1tb Seagate 2tb stock Windows 8.1 Pro 
MonitorCase
HP Elitedisplay E231 abko ncore s2 mini tower 
CPUMotherboardGraphicsGraphics
i7 4770k Gigabyte G1 Sniper 5 XFX r9 290 XFX R9 290X BF4 Edition 
GraphicsGraphicsRAMHard Drive
Power color R9 290 Sapphire R9 290X BF4 Edition G.Skill Trident X 2666 mhz CL12 Samsung 840 EVO 250gb 
Optical DriveCoolingOSMonitor
Samsung DVD writer Custom Water cooling WIndows 8.1 Professional Crossover 3020MDP 
MonitorMonitorKeyboardPower
Crossover 30X-P  Crossover 30X-p Steel Series 6Gv2 Mechanical Keyboard with Cher... Corsair ax1500i 
CaseMouseAudioOther
Corsair 900D Logitech G100 Creative 3d Core (stock G1 Sniper 5) Corsair Vengeance 1400 Analog Gaming Headset 
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my budget gaming
(10 items)
 
   
CPUMotherboardGraphicsRAM
i5 4570 Asus Z87-m Plus Zotac GTX 750 ti OC 8gb (4gb x 2) Samsung DDR3 1333 LV 
Hard DriveHard DriveCoolingOS
Western Digital 1tb Seagate 2tb stock Windows 8.1 Pro 
MonitorCase
HP Elitedisplay E231 abko ncore s2 mini tower 
CPUMotherboardGraphicsGraphics
i7 4770k Gigabyte G1 Sniper 5 XFX r9 290 XFX R9 290X BF4 Edition 
GraphicsGraphicsRAMHard Drive
Power color R9 290 Sapphire R9 290X BF4 Edition G.Skill Trident X 2666 mhz CL12 Samsung 840 EVO 250gb 
Optical DriveCoolingOSMonitor
Samsung DVD writer Custom Water cooling WIndows 8.1 Professional Crossover 3020MDP 
MonitorMonitorKeyboardPower
Crossover 30X-P  Crossover 30X-p Steel Series 6Gv2 Mechanical Keyboard with Cher... Corsair ax1500i 
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post #5 of 8
Well damn. I'm planning to CF my 7950 DCII TOP, as I love it, and it looks gorgeous (Look at my avatar pic, would look gorgeous with another card under it). My first CF setup with two 7950 DCII tops had the second one die after two weeks. It worked alright during the two weeks. Now that AMD have really stepped up their driver department, I can safely CF again provided I get another good card.
post #6 of 8
You would be perfectly fine with 1 slot between them, though you will still notice increases in temps on the top card. (make sure you have a really good ventilated case). I've seen people with crossfire/sli setups with no slot free between them and yet they still work fine.
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post #7 of 8
Thread Starter 
I'm doing it. I have efficient case ventilation and my current single 7850 overclocked hasn't hit 60c yet. That's without v-sync too. I will report temps once it's installed to provide info for people considering the same.
post #8 of 8
Quote:
Originally Posted by Phenomanator53 View Post

You would be perfectly fine with 1 slot between them, though you will still notice increases in temps on the top card. (make sure you have a really good ventilated case). I've seen people with crossfire/sli setups with no slot free between them and yet they still work fine.

Thats doable with reference card where blower exhaust hot air at the back (pci slots)
my budget gaming
(10 items)
 
   
CPUMotherboardGraphicsRAM
i5 4570 Asus Z87-m Plus Zotac GTX 750 ti OC 8gb (4gb x 2) Samsung DDR3 1333 LV 
Hard DriveHard DriveCoolingOS
Western Digital 1tb Seagate 2tb stock Windows 8.1 Pro 
MonitorCase
HP Elitedisplay E231 abko ncore s2 mini tower 
CPUMotherboardGraphicsGraphics
i7 4770k Gigabyte G1 Sniper 5 XFX r9 290 XFX R9 290X BF4 Edition 
GraphicsGraphicsRAMHard Drive
Power color R9 290 Sapphire R9 290X BF4 Edition G.Skill Trident X 2666 mhz CL12 Samsung 840 EVO 250gb 
Optical DriveCoolingOSMonitor
Samsung DVD writer Custom Water cooling WIndows 8.1 Professional Crossover 3020MDP 
MonitorMonitorKeyboardPower
Crossover 30X-P  Crossover 30X-p Steel Series 6Gv2 Mechanical Keyboard with Cher... Corsair ax1500i 
CaseMouseAudioOther
Corsair 900D Logitech G100 Creative 3d Core (stock G1 Sniper 5) Corsair Vengeance 1400 Analog Gaming Headset 
  hide details  
Reply
my budget gaming
(10 items)
 
   
CPUMotherboardGraphicsRAM
i5 4570 Asus Z87-m Plus Zotac GTX 750 ti OC 8gb (4gb x 2) Samsung DDR3 1333 LV 
Hard DriveHard DriveCoolingOS
Western Digital 1tb Seagate 2tb stock Windows 8.1 Pro 
MonitorCase
HP Elitedisplay E231 abko ncore s2 mini tower 
CPUMotherboardGraphicsGraphics
i7 4770k Gigabyte G1 Sniper 5 XFX r9 290 XFX R9 290X BF4 Edition 
GraphicsGraphicsRAMHard Drive
Power color R9 290 Sapphire R9 290X BF4 Edition G.Skill Trident X 2666 mhz CL12 Samsung 840 EVO 250gb 
Optical DriveCoolingOSMonitor
Samsung DVD writer Custom Water cooling WIndows 8.1 Professional Crossover 3020MDP 
MonitorMonitorKeyboardPower
Crossover 30X-P  Crossover 30X-p Steel Series 6Gv2 Mechanical Keyboard with Cher... Corsair ax1500i 
CaseMouseAudioOther
Corsair 900D Logitech G100 Creative 3d Core (stock G1 Sniper 5) Corsair Vengeance 1400 Analog Gaming Headset 
  hide details  
Reply
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