Overclock.net › Forums › Graphics Cards › AMD/ATI › Can you crossfire 3870's on a P5K Deluxe?
New Posts  All Forums:Forum Nav:

Can you crossfire 3870's on a P5K Deluxe?

post #1 of 6
Thread Starter 
I was curious, can you crossfire 3870's on a P5K Deluxe, I know that the board supports crossfire, and it has two PCIeX16 slots, however, only the top slot runs on the full x16 lanes, the bottom slot is only x4 lanes I believe. Would the 3870 work in the x4 lane? And approximately how bottlenecked would it be by the lane reduction? Anyone know anything about this?
    
CPUMotherboardGraphicsRAM
Q9650 E0 @ 4GHz (445x9) on 1.325V (bios) | ASUS Rampage Formula x48 | | BIOS 0410 | Visiontek 4870 790/1100 | 2x2GB G.Skill PI @1069MHz | 1.9V | 5-5-5-15 2T | 
Hard DriveOptical DriveOSMonitor
Seagate 2x320GB 7200.10 in RAID 0 + 250GB 7200.10 Lite-On DVD+-R/RW DL Vista Ultimate x64 42" Aquous @ 1440 x 900 (1920 x 1080 is too small) 
KeyboardPowerCaseMouse
Logitech MX5500 Silverstone DA750 THE Rocketfish Logitech MX Revolution 
Mouse Pad
Neat one from Body Worlds exhibit 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q9650 E0 @ 4GHz (445x9) on 1.325V (bios) | ASUS Rampage Formula x48 | | BIOS 0410 | Visiontek 4870 790/1100 | 2x2GB G.Skill PI @1069MHz | 1.9V | 5-5-5-15 2T | 
Hard DriveOptical DriveOSMonitor
Seagate 2x320GB 7200.10 in RAID 0 + 250GB 7200.10 Lite-On DVD+-R/RW DL Vista Ultimate x64 42" Aquous @ 1440 x 900 (1920 x 1080 is too small) 
KeyboardPowerCaseMouse
Logitech MX5500 Silverstone DA750 THE Rocketfish Logitech MX Revolution 
Mouse Pad
Neat one from Body Worlds exhibit 
  hide details  
Reply
post #2 of 6
Yes you can X-fire the 3870's. The x4 pci-e slot will only make the x-fire a tiny bit slower.
Computard
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.6Ghz 24/7 P5K Deluxe EVGA GTX 260 55NM 2x2GB G.Skill 4GBPQ DDR2 8000 
Hard DriveOptical DriveOSMonitor
2x320gb[Raid0] + Seagate 7200.11 1TB Samsung WriteMaster SATA Windows XP Pro ASUS VH242H 
KeyboardPowerCaseMouse
Saitek Gaming keyboard Corsair 750TX Gigabyte Aurora 570 Razer DeathAdder 
Mouse Pad
Steelseries Qck 
  hide details  
Reply
Computard
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.6Ghz 24/7 P5K Deluxe EVGA GTX 260 55NM 2x2GB G.Skill 4GBPQ DDR2 8000 
Hard DriveOptical DriveOSMonitor
2x320gb[Raid0] + Seagate 7200.11 1TB Samsung WriteMaster SATA Windows XP Pro ASUS VH242H 
KeyboardPowerCaseMouse
Saitek Gaming keyboard Corsair 750TX Gigabyte Aurora 570 Razer DeathAdder 
Mouse Pad
Steelseries Qck 
  hide details  
Reply
post #3 of 6
Yeah you can do it no problem, there's just a SLIGHT performance hit.
post #4 of 6
Yes you can. You wont even notice the performance hit.
The Kandalf
(16 items)
 
  
CPUMotherboardGraphicsGraphics
I7 5820K MSI X99S Gaming 7 ASUS R9 280X TOP Crossfire X ASUS R9 280X TOP Crossfire X 
RAMHard DriveOptical DriveOS
Crucial DDR4 2133MHz 8GB (2x4GB) Samsung SpinPoint F1 1TB HP DVD630 Ubuntu 
MonitorKeyboardPowerCase
2x Philips Brilliance 220CW Microsoft Wireless Desktop Elite Keyboard Fractal Design Newton R3, 800W 80+ Platinum Corsair 900D 
MouseMouse PadAudioAudio
Mionix Naos 8200 Razer Pro Solutions Arcam rDAC B&W CM1 
  hide details  
Reply
The Kandalf
(16 items)
 
  
CPUMotherboardGraphicsGraphics
I7 5820K MSI X99S Gaming 7 ASUS R9 280X TOP Crossfire X ASUS R9 280X TOP Crossfire X 
RAMHard DriveOptical DriveOS
Crucial DDR4 2133MHz 8GB (2x4GB) Samsung SpinPoint F1 1TB HP DVD630 Ubuntu 
MonitorKeyboardPowerCase
2x Philips Brilliance 220CW Microsoft Wireless Desktop Elite Keyboard Fractal Design Newton R3, 800W 80+ Platinum Corsair 900D 
MouseMouse PadAudioAudio
Mionix Naos 8200 Razer Pro Solutions Arcam rDAC B&W CM1 
  hide details  
Reply
post #5 of 6
If you want crossfire with both slots to run at 16x you need a x38 or x48 board.
PLEX Server
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 4.4 GHz ASUS Rampage II Extreme (2) Visiontek HD5870 1GB 12 GB G.Skill DDR3 1600 
Hard DriveOptical DriveOSMonitor
4 - 5TB Seagate USB3 External LiteOn 16x DL DVDRW Windows 7 Pro 64-Bit Samsung 26" LCD 
KeyboardPowerCaseMouse
generic Thermaltake Toughpower 1000w Coolermaster Centurion 5 Razer Copperhead 
  hide details  
Reply
PLEX Server
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 940 @ 4.4 GHz ASUS Rampage II Extreme (2) Visiontek HD5870 1GB 12 GB G.Skill DDR3 1600 
Hard DriveOptical DriveOSMonitor
4 - 5TB Seagate USB3 External LiteOn 16x DL DVDRW Windows 7 Pro 64-Bit Samsung 26" LCD 
KeyboardPowerCaseMouse
generic Thermaltake Toughpower 1000w Coolermaster Centurion 5 Razer Copperhead 
  hide details  
Reply
post #6 of 6
Thread Starter 
Quote:
Originally Posted by vix View Post
If you want crossfire with both slots to run at 16x you need a x38 or x48 board.
I knew that. My question was about the P5K Deluxe. I'm not buying an X38 or X48 board for the "marginally" better but performance for a "drastically" higher price.
    
CPUMotherboardGraphicsRAM
Q9650 E0 @ 4GHz (445x9) on 1.325V (bios) | ASUS Rampage Formula x48 | | BIOS 0410 | Visiontek 4870 790/1100 | 2x2GB G.Skill PI @1069MHz | 1.9V | 5-5-5-15 2T | 
Hard DriveOptical DriveOSMonitor
Seagate 2x320GB 7200.10 in RAID 0 + 250GB 7200.10 Lite-On DVD+-R/RW DL Vista Ultimate x64 42" Aquous @ 1440 x 900 (1920 x 1080 is too small) 
KeyboardPowerCaseMouse
Logitech MX5500 Silverstone DA750 THE Rocketfish Logitech MX Revolution 
Mouse Pad
Neat one from Body Worlds exhibit 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q9650 E0 @ 4GHz (445x9) on 1.325V (bios) | ASUS Rampage Formula x48 | | BIOS 0410 | Visiontek 4870 790/1100 | 2x2GB G.Skill PI @1069MHz | 1.9V | 5-5-5-15 2T | 
Hard DriveOptical DriveOSMonitor
Seagate 2x320GB 7200.10 in RAID 0 + 250GB 7200.10 Lite-On DVD+-R/RW DL Vista Ultimate x64 42" Aquous @ 1440 x 900 (1920 x 1080 is too small) 
KeyboardPowerCaseMouse
Logitech MX5500 Silverstone DA750 THE Rocketfish Logitech MX Revolution 
Mouse Pad
Neat one from Body Worlds exhibit 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Can you crossfire 3870's on a P5K Deluxe?