- Most power supplies don’t support Haswell – False
- I need a Haswell certified power supply to build a Haswell system – False
- Haswell only works with DC-DC Power Supplies – False
- Haswell only works with 80+ Gold and better Power Supplies – False
- Haswell requires a second 12V rail and doesn’t work with single rail Power Supplies – False
- On some older power supplies, Haswell consumes 5W more in idle mode - True
Among other improvements of Intels latest Core Processors, power consumption in idle mode has been greatly reduced from around 6W to less than 1W. This might cause some older power supplies to shut the system off when the CPU enters idle mode, or prevent the system from waking up out of sleep mode. To our knowledge all mainboard vendors will disable this advanced power saving mode by default, and no customer upgrading to Haswell should experience any issues whatsoever.
Should customers experience problems nevertheless, or would like to enable the advanced power saving mode on older power supplies that might not support it, there is a simple fix. Simply adding a single silent case fan to the system, connected to the power supply, should provide enough additional load to keep the system running in advanced power saving mode.
The only disadvantage would be that power savings in idle mode on such a system would only surmount to around 2-3W instead of ~5W.
Series Model Haswell-ready
V Series V1000 yes
V850 yes
V700 yes
Platinum Series Silent Pro Platinum 1000 yes
Silent Pro Platinum 550 yes
Gold Series Silent Pro Gold 1200 yes
Silent Pro Gold 1000 yes
Silent Pro Gold 800 yes
Silent Pro Gold 700 * yes
Silent Pro Gold 600 * yes
Silent Pro Gold 550 yes
Silent Pro Gold 450 yes
Hybrid Series Silent Pro Hybrid 1300 yes
Silent Pro Hybrid 1050 yes
Silent Pro Hybrid 850 yes
M2 Series Silent Pro M2 1500 yes
Silent Pro M2 1000 yes
Silent Pro M2 850 yes
Silent Pro M2 720 yes
Silent Pro M2 620 yes
Silent Pro M2 520 * yes
Silent Pro M2 420 * yes
M series Silent Pro M 1000 yes
Silent Pro M 850 yes
Silent Pro M 700 yes
Silent Pro M 600 yes
Silent Pro M 500 * yes
GX2 Series * GX2 750 * yes
GX2 650 * yes
GX2 550 * yes
GX2 450 * yes
GX Series GX 750 yes
GX 650 yes
GX 550 * yes
GX 450 yes
GX 400 * yes
GX Lite * GXL 700 * yes
GXL 600 * yes
GXL 500 * yes
I Series I700 yes
I600 yes
I500 yes
G Series * G700 * yes
G600 * yes
G500 * yes
Thunder M Series * Thunder M 620 * yes
Thunder M 520 * yes
Thunder M 420 * yes
Thunder Series * Thunder 700 * yes
Thunder 600 * yes
Thunder 500 * yes
Thunder 450 * yes
B Series * B700 * yes
B600 * yes
B500 * yes
Extreme2 Series EX2 725 yes
EX2 625 yes
EX2 525 yes
EX2 475 yes
Extreme EX 700 yes
EX 650 * yes
EX 600 yes
EX 550 yes
EX 500 yes
EX 460 * yes
EX 400 * yes
EX 350 * yes
Elite Series Elite 460 yes
Elite 400 yes
Elite 350 yes
* indicates model only available in selected regions
About Cooler Master
Cooler Master was founded to provide the best thermal solutions to our customers worldwide. Since its establishment two decades ago, we continue to invest in product development in order to provide the leading-edge innovations to people and businesses. Cooler Master’s enclosure technology line-up includes heat sinks and fans, chassis, power supplies, function panels and accessories. Cooler Master has its headquarters in Taipei, Taiwan, with global branch offices located in Europe, America and APAC, so that we can offer to our customers the best service in time. For more information on Cooler Master, please visit http://www.coolermaster.com and http://www.facebook.com/coolermaster