Cooler Master PSUs are Haswell-Ready

Posted on May 31 2013 - 8:18pm by Christopher Allega

There has been a lot of talk about PSU compatibility for Intel’s upcoming 4th Generation Core Processors (code named Haswell). We have observed a large amount of misinformation being spread. We would like to clarify the situation to calm and reassure our customers and partners that they will be able to upgrade safely. A full list of Cooler Master power supplies is listed here. Below are some quick facts that the public should be aware.

  • 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 1000W

Yes

Silent Pro Platinum 550W

Yes

Gold Series Silent Pro Gold 1200W

Yes

Silent Pro Gold 1000W

Yes

Silent Pro Gold 800W

Yes

Silent Pro Gold 700W *

Yes

Silent Pro Gold 600W *

Yes

Silent Pro Gold 550W

Yes

Silent Pro Gold 450W

Yes

Hybrid Series Silent Pro Hybrid 1300W

Yes

Silent Pro Hybrid 1050W

Yes

Silent Pro Hybrid 850W

Yes

M2 Series Silent Pro M2 1500W

Yes

Silent Pro M2 1000W

Yes

Silent Pro M2 850W

Yes

Silent Pro M2 720W

Yes

Silent Pro M2 620W

Yes

Silent Pro M2 520W *

Yes

Silent Pro M2 420W *

Yes

M Series Silent Pro M 1000W

Yes

Silent Pro M 850W

Yes

Silent Pro M 700W

Yes

Silent Pro M 600W

Yes

Silent Pro M 500W *

Yes

GX2 Series * GX2 750W *

Yes

GX2 650W *

Yes

GX2 550W *

Yes

GX2 450W *

Yes

GX Series GX 750W

Yes

GX 650W

Yes

GX 550W *

Yes

GX 450W

Yes

GX 400W *

Yes

GX Lite Series * GXL 700W *

Yes

GXL 600W *

Yes

GXL 500W *

Yes

i Series i700

Yes

i600

Yes

i500

Yes

G Series * G700 *

Yes

G600 *

Yes

G500 *

Yes

Thunder M Series * Thunder M 620W *

Yes

Thunder M 520W *

Yes

Thunder M 420W *

Yes

Thunder Series * Thunder 700W *

Yes

Thunder 600W *

Yes

Thunder 500W *

Yes

Thunder 450W *

Yes

B Series * B700 *

Yes

B600 *

Yes

B500 *

Yes

Extreme2 Series EX2 725W

Yes

EX2 625W

Yes

EX2 525W

Yes

EX2 475W

Yes

Extreme Series EX 700W

Yes

EX 650W *

Yes

EX 600W

Yes

EX 550W

Yes

EX 500W

Yes

EX 460W *

Yes

EX 400W *

Yes

EX 350W *

Yes

Elite Series Elite 460W

Yes

Elite 400W

Yes

Elite 350W

Yes

* indicates model only available in selected regions