Computer having multiple hardware related power issues

[Kaffee]

Over the past few months, my computer has been experiencing multiple hardware related power issues, such as:
[ul]
[li]Being unable to automatically go into sleep mode[/li][li]DRIVER_POWER_STATE_FAILURE BSOD[/li][li]Powering on but not properly booting, ie computer fans run at full speed but peripherals do not turn on[/li][/ul]

The inability to go into sleep mode has persisted ever since it started, though I was able to make it work for one full day by removing powercfg privileges from multiple devices and programs.
The DRIVER_POWER_STATE_FAILURE BSOD occurred twice daily for 3 days a couple of months ago, but hasn’t happened since.
The biggest issue is with my computer not booting. This has only happened about 3 times ever since the power issues started showing up, and by just restarting the computer it would then boot up normally. However earlier today, the error occurred 4 times in a row.

I’m certain this is a hardware issue, but am unsure which part I should replace. Does this sound like a PSU, Ram card, or Motherboard type of issue?

[phillpower2]

[COLOR=rgb(226, 80, 65)]Can you post the brand and model name or number of the power supply (PSU).

Download then run Speccy (free) and post the resultant url for us, details here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.

To publish a Speccy profile to the Web:

In Speccy, click File, and then click Publish Snapshot.

In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.

Speccy publishes the profile and displays a second Publish Snapshot. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.[/COLOR]

[phillpower2]

Thread closed due to lack of any feedback from the OP.