My dell inspiron E1505 will not go into sleep mode. How do I fix this? Already checked pc settings and they are correct.

It\'s NOT the fan. Check the power save settings on the computer ITSELF. Check your BIOS settings as well. Inspirons ALL do the same thing with waking up.

system restore back a few days before this happened. hope this helps.

Please go to control pannel and go to Power Options.
Check the settings.

Thanks
Priyanshu Shekhar
[email protected]

run your comp in safe mode, if still not working, run 32 bit dell diagnostic using teh drivers disc, test touchpad, if still not working replace palmrest

To turn presentation mode on follow this:

1. Open Dell Quick Set
2. Click on Display Settings
3. Check the box that says Activate Presentation Mode

But I don't think that will make your screen brighter, if its still dark then look for the function hot key to turn up the brightness on your screen. Its usually something like - hold the "fn" key and press the up arrow several times.

happened to me.... tech guy from dell came over, and temp. fixed it ... laptop is then no use with battery, i still always have to use the plug

You can disable it in power mode setting..

Here are my recommendations for this issue:

1. Reseat the battery.
2. Remove All External Components
3. Check the battery connectors on the battery and the system. Examine the connector on the battery and the system. Make sure that there is no physical damage and that it is clear of debris.
4. Remove All External Components
5. Try a known-good battery in the system, if available.

I found many references to this issue but I am not sure which may apply to your problem. Here is a set of steps to follow from another site: (Assumes Vista and Realtek)

• Open Vista’s Control Panel (Window | Control Panel)
• Open the Realtek Audio Manager (not “Sound”)
• In the navigation bar in the far right, there is a little yellow folder icon. It is just below “Device advanced settings” and above “ANALOG”. Click the folder icon.
• Click “Disable front panel jack detection” so that a yellow check mark shows up. Hit “OK”, and close the Realtek HD Audio Manager. That should re-enable the sound.

Most probably the seating of the processor on the motherboard is not proper
check this site and mount the processor properly
http://support.dell.com/support/edocs/systems/ins6400/en/sm/cpu.htm#wp1084976