Computer sleep issue

[Guest]

Sometimes when I try to sleep my computer, my computer ends up still running, but the display is turned off. So I have no choice but to hold the power button and boot my computer up, which is absolutely annoying. Any help or any thought will be appreciated.

 

[TheMentalist]

What cpu and power supply are you using?

 

[i7Baby]

Check your power settings.

 

[Guest]

What cpu and power supply are you using?

CPU: Intel Pentium Dual Core E5300 (socket LGA 775)

Power Supply: Kentek kt-mtfx30 300 watt