Is 850 watt power supply enough for r9 290x crossfire?
- Thread starter j-lor
- Start date
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jhibbard75
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- Mar 8, 2013
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jhibbard75
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ko888
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- Feb 18, 2009
- 16,708
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System Power Supply Requirements for two AMD Reference Design R9 290X graphics cards in 2-way CrossFire mode
• AMD specifies a minimum of a 1000 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the system power supply must also have a maximum combined +12 Volt continuous current rating of 68 Amps or greater
• the system power supply should also have at least two 75-Watt 6-pin and two 150-Watt 8-pin PCI Express supplementary power connectors. There are some non-reference design cards that require one 75-Watt 6-pin and two 150-Watt 8-pin PCI Express supplementary power connectors (e.g. MSI RADEON R9 290X LIGHTNING) or two 150-Watt 8-pin PCI Express supplementary power connectors (e.g. ASUS R9 290X Matrix Platinum).
Total Power Supply Wattage is NOT the crucial factor in determining power supply adequacy!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.
Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.
Cooler Master Real Power Pro 850W (RS-850-EMBA) Discontinued
• OEM: Enhance Electronics
• maximum combined +12 Volt continuous current rating: 64 Amps <===== Insufficient
• two 75-Watt 6-pin and two 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== Sufficient for most R9 290X cards
• Modular Output Cables: No
• Official Intel Haswell Compliance: No
• 80 PLUS Standard Efficiency Certification
• 5 Year Limited Warranty
• AMD specifies a minimum of a 1000 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the system power supply must also have a maximum combined +12 Volt continuous current rating of 68 Amps or greater
• the system power supply should also have at least two 75-Watt 6-pin and two 150-Watt 8-pin PCI Express supplementary power connectors. There are some non-reference design cards that require one 75-Watt 6-pin and two 150-Watt 8-pin PCI Express supplementary power connectors (e.g. MSI RADEON R9 290X LIGHTNING) or two 150-Watt 8-pin PCI Express supplementary power connectors (e.g. ASUS R9 290X Matrix Platinum).
Total Power Supply Wattage is NOT the crucial factor in determining power supply adequacy!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.
Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.
Cooler Master Real Power Pro 850W (RS-850-EMBA) Discontinued
• OEM: Enhance Electronics
• maximum combined +12 Volt continuous current rating: 64 Amps <===== Insufficient
• two 75-Watt 6-pin and two 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== Sufficient for most R9 290X cards
• Modular Output Cables: No
• Official Intel Haswell Compliance: No
• 80 PLUS Standard Efficiency Certification
• 5 Year Limited Warranty
ko888
Titan
- Feb 18, 2009
- 16,708
- 41
- 84,990
System Power Supply Requirements for two NVIDIA Reference Design GeForce GTX 970 graphics cards in 2-way SLI mode
• NVIDIA specifies a minimum of a 700 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the power supply must also have a maximum combined +12 Volt continuous current rating of 50 Amps or greater
• the power supply should also have at least four 75-Watt 6-pin PCI Express supplementary power connectors. There are some non-reference design cards that require one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors or just one 150-Watt 8-pin PCI Express supplementary power connector per card.
Cooler Master Real Power Pro 850W (RS-850-EMBA) Discontinued
• OEM: Enhance Electronics
• maximum combined +12 Volt continuous current rating: 64 Amps <===== Sufficient
• two 75-Watt 6-pin and two 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== Sufficient
• Modular Output Cables: No
• Official Intel Haswell Compliance: No
• 80 PLUS Standard Efficiency Certification
• 5 Year Limited Warranty
• NVIDIA specifies a minimum of a 700 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
• the power supply must also have a maximum combined +12 Volt continuous current rating of 50 Amps or greater
• the power supply should also have at least four 75-Watt 6-pin PCI Express supplementary power connectors. There are some non-reference design cards that require one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors or just one 150-Watt 8-pin PCI Express supplementary power connector per card.
Cooler Master Real Power Pro 850W (RS-850-EMBA) Discontinued
• OEM: Enhance Electronics
• maximum combined +12 Volt continuous current rating: 64 Amps <===== Sufficient
• two 75-Watt 6-pin and two 150-Watt (6+2)-pin PCI Express supplementary power connectors <===== Sufficient
• Modular Output Cables: No
• Official Intel Haswell Compliance: No
• 80 PLUS Standard Efficiency Certification
• 5 Year Limited Warranty
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