I have a client who just bought a Dell Inspiron 570 desktop PC to replace his 6 y/o PC. I connected it to his Dell monitor and copied his files over. Everything seems to be OK except for one major problem. After about 30 to 40 min of use, the monitor will suddenly go into a Power Save mode even though the computer is actively being used. Tapping the keyboard or moving the mouse does not bring the monitor out of Power Save mode. Even pressing & holding down the power button on the computer will not shut it down. The only option available is to do a forced shutdown by unplugging the A/C cable from the outlet.
I called Dell tech support 2 times. 1st tech had me disable all power saving features in the Windows 7 control panel. That did not work. Called back and the 2nd tech had me go into system BIOS to change the ACPI mode from the default S3 to S1. That also did not work.
Do I have a defective system on my hands? I find it very odd that holding down the power button for 20 seconds or longer has no effect and the only way to power down is to unplug the A/C.
I feel this is a problem w/ the PC and not the monitor although we don't have a spare monitor available to prove this.
The problem with these suggestions is warranty. First make sure Dell allows you to open and add/replace components without loosing the warranty. Dell warranty is not the same in all Countries (most brands
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