I recently purchased a second R9 290 to run in Crossfire, but I've been having weird issues with it.
When I first tried running the two GPUs together, Windows kept stopping the second GPU from working. When I removed my original GPU and ran only the second one, AMD drivers wouldn't load (CPU utilization sitting at 60% trying to load Radeon settings), and GPUz would crash when it tried to get info on the card. I tried using different PCIe x16 slots, different PCI power cables, and ran DDU multiple times.
After playing around with different settings, I found that AMD drivers will only work when I reset my motherboard to stock settings (my CPU is usually 4.2GHz and RAM is 2133MHz).
I don't understand why this makes any sense. I just upgraded my power supply from a Corsair CX600M a couple weeks ago, so I doubt it's an issue with the added power draw from overclocking...
Here's my parts list:
CPU: Intel - Core i5-4690K 3.5 GHz Quad-Core Processor
CPU Cooler: Cooler Master - Seidon 240M 86.15 CFM Liquid CPU Cooler
Motherboard: MSI - Z97 PC MATE ATX LGA1150 Motherboard
Memory: PNY - 16 GB (2 x 8 GB) DDR3-1866 Memory
Storage: Plextor - M5S Series 128 GB 2.5" Solid State Drive
Storage: Hitachi - Deskstar 7K2000 2 TB 3.5" 7200RPM Internal Hard Drive
Video Card: XFX - Radeon R9 290 4 GB Double Dissipation Video Card (2-Way CrossFire)
Video Card: XFX - Radeon R9 290 4 GB Double Dissipation Video Card (2-Way CrossFire)
Case: Corsair - 270R ATX Mid Tower Case
Power Supply: EVGA - 850 W 80+ Gold Certified Semi-Modular ATX Power Supply
Operating System: Microsoft - Windows 10 Pro OEM 64-bit
Wireless Network Adapter: TP-Link - TL-WDN4800 PCI-Express x1 802.11a/b/g/n Wi-Fi Adapter
Case Fan: Cooler Master - R4-S2S-124K-GP 44.73 CFM 120mm Fans
Monitor: Acer - XF240H 24.0" 1920x1080 144 Hz Monitor
When I first tried running the two GPUs together, Windows kept stopping the second GPU from working. When I removed my original GPU and ran only the second one, AMD drivers wouldn't load (CPU utilization sitting at 60% trying to load Radeon settings), and GPUz would crash when it tried to get info on the card. I tried using different PCIe x16 slots, different PCI power cables, and ran DDU multiple times.
After playing around with different settings, I found that AMD drivers will only work when I reset my motherboard to stock settings (my CPU is usually 4.2GHz and RAM is 2133MHz).
I don't understand why this makes any sense. I just upgraded my power supply from a Corsair CX600M a couple weeks ago, so I doubt it's an issue with the added power draw from overclocking...
Here's my parts list:
CPU: Intel - Core i5-4690K 3.5 GHz Quad-Core Processor
CPU Cooler: Cooler Master - Seidon 240M 86.15 CFM Liquid CPU Cooler
Motherboard: MSI - Z97 PC MATE ATX LGA1150 Motherboard
Memory: PNY - 16 GB (2 x 8 GB) DDR3-1866 Memory
Storage: Plextor - M5S Series 128 GB 2.5" Solid State Drive
Storage: Hitachi - Deskstar 7K2000 2 TB 3.5" 7200RPM Internal Hard Drive
Video Card: XFX - Radeon R9 290 4 GB Double Dissipation Video Card (2-Way CrossFire)
Video Card: XFX - Radeon R9 290 4 GB Double Dissipation Video Card (2-Way CrossFire)
Case: Corsair - 270R ATX Mid Tower Case
Power Supply: EVGA - 850 W 80+ Gold Certified Semi-Modular ATX Power Supply
Operating System: Microsoft - Windows 10 Pro OEM 64-bit
Wireless Network Adapter: TP-Link - TL-WDN4800 PCI-Express x1 802.11a/b/g/n Wi-Fi Adapter
Case Fan: Cooler Master - R4-S2S-124K-GP 44.73 CFM 120mm Fans
Monitor: Acer - XF240H 24.0" 1920x1080 144 Hz Monitor