*NOTE*: Some of this info applies to WD Reds. So if you have WD Reds you may want to read this and see if this applies to you.
In 2009 Western Digital introduced their "Green" drives. These are 5405RPM drives. If you check out their documentation it says they have a "rotation speed between 5400 and 7200RPM". If you read between the lines it does NOT mean these drive have 2+ speeds(despite how many people swear up and down they have different speeds). They have one speed, and it is in fact...
Hacking WD Greens(and Reds) with WDIDLE3.exe
In 2009 Western Digital introduced their "Green" drives. These are 5405RPM drives. If you check out their documentation it says they have a "rotation speed between 5400 and 7200RPM". If you read between the lines it does NOT mean these drive have 2+ speeds(despite how many people swear up and down they have different speeds). They have one speed, and it is in fact...
Hacking WD Greens(and Reds) with WDIDLE3.exe