Question about E-Machines T1842 PC Desktop

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Accidentaly turned on the "power down when system fan not recognized" in the bios. my system does not have a system fan so it shuts down before i can get to the bios to change setting. how can this be fixed?

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Hello there:
what i would do is open the case and locate the cmos battery and remove it also remove the cord that connects the motherboard to the powersupply and then wait about 4 minutes now press the power button and the reset button if it has one this will help release any esd that may have built up. after this has been completed reconnect the powersupply to the motherboard and reinstall the cmos battery and reboot the computer now it should give you a error and tell you that you need to go into bios and correct the time and date go ahead and go into bios and do this and now you will be able to solve your other problem from here but it should be corrected anyway ok?
best regards michael

Posted on Sep 10, 2009

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Turn off the computer.
Unplug the computer.
Open up the case and look for a coin-cell battery, it's the BIOS battery. Remove it for 30 seconds and then replace it.
This should reset your BIOS to original factory settings.
Close the computer.
Plug in the computer.
Then try it.

Posted on Sep 10, 2009

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Remove your CMOS battery and leave it out for about 1-2 minutes. When you put it back in and reboot the machine your BIOS will be set back to factory specs. That particular choice should be turned off when you reboot. Before you do this make sure you have your manual to ensure all of your BIOS settings are where they should be.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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3 Answers

How do I access the BIOS settings for the P5LP-LE motherboard. The startup key says to press F1, but pressing F1 does nothing.


The instructions say:
"Hold down the F1 key during the startup process and enter BIOS setup to re-enter/reset any custom BIOS settings." I would also try hitting the F1 key multiple times from the very turn on of the computer because the key may have to register at some point after turning on.

Try clearing the CMOS settings as explained on this page, it should clear out any passwords and will set the BIOS settings back to factory settings.

HP and Compaq Desktop PCs Motherboard Specifications P5LP LE Lithium

As for "The CPU fan runs normally on boot, but as soon as the Windows flash screen comes up, the CPU fan slows way down."
This is quite normal. On start-up the temperature of the CPU is not being read, when the flash screen comes up just happens to be the same time that the computer recognizes that the CPU is cold and doesn't need to be cooled.

On the "Then the installation program starts running and the CPU Fan speed starts fluctuating wildly from slow to extremely fast."
This could be normal as when files are read from a DVD the CPU doesn't work hard, but when it unpacks the files or does calculations it does work hard. Or it could be that the thermal paste between the CPU and the heat sink is not correct. Either dry , not making contact, or even too much. If the heat is not being transferred that would also explain the shut-down.

Nov 11, 2016 | Computers & Internet

1 Answer

Power shut down shortly after bios loads


Check the processor and heatsink/fan. If there is a bad contact between the heatsink and the processor, or the fan fails to turn the BIOS will shut the system down to protect the CPU from overheating. I hope this helps.

Mar 02, 2012 | ASUS M2N68-AM PLUS Motherboard w/ AMD...

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Hi, I ahe a dell computer model number dccy, i want to know why it turn off by itself, when it get to hot, when i have more than ten minute working with it, why if turn off


When the CPU in the computer or laptopoverheats then it will shut down (i.e. thermal overload) and won't boot upagain until it has cooled down. If this is the problem is not fixed then theCPU will eventually fail.
A faulty fan causes this problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged withdust the remove the dust and make sure the vents are clear and dust free. Use acan of compressed air to do this.

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2 Answers

System shuts down. No blue screen etc. As if


sounds like either the fan on the cpu is giving trouble or the power supply itself. remove the cover and observe the fan to see if it is working properly also check the fan in the power supply. replace as necassary

Nov 17, 2009 | EliteGroup GeForce 6100SM-M Motherboard

1 Answer

Upgraded mem.now mon pc dont shut off fan con to run


Computer doesn’t power down when users shut down
In some cases, Windows XP’s Setup program can misidentify the power management scheme in a computer’s BIOS as Advanced Power Management (APM) instead of Advanced Configuration Power Interface (ACPI). When this happens, users will notice that the computer no longer automatically powers down when they shut down Windows XP. Instead, they’ll see the message It Is Now Safe To Turn Off Your Computer and be forced to manually press the power button to turn off the computer.

You can verify this problem by checking the power management configuration in two places—Device Manager and the Control Panel. To quickly access Device Manager, select Start | Run, type Devmgmt.msc in the Open text box, and click OK. When you see the Device Manager window, locate and open the System Devices item. If Setup identified the system as having an APM-compliant BIOS, it will be listed as a Standard PC in the System Devices tree. (If it were identified as having an ACPI-compliant BIOS, you would see it listed here as a Microsoft ACPI-Compliant System.)

To check the power management configuration in the Control Panel, open the Control Panel from the Start menu. If the system is using Category View, select Performance And Maintenance and then click the Power Options icon. If the system is using Classic View, just click the Power Options icon. If Setup identified the system as having an APM-compliant BIOS, you’ll see an APM tab in the Power Options Properties dialog box. (If the system were identified as having an ACPI-compliant BIOS, you wouldn’t see an APM tab.)

You may be able to fix this problem with a BIOS update. To begin, check with the computer manufacturer’s Web site to see if it’s providing the latest BIOS update. If you’re troubleshooting an off-brand computer, you may be on your own as far as tracking down the BIOS update. Here’s how.

Once you obtain and install the BIOS update according to the manufacturer’s instructions, you must perform what I call a Refresh Installation, in which you reinstall Windows XP on top of an existing Windows XP installation. You must perform this reinstall operation because the power management features are tied to a special power management Hardware Abstraction Layer (HAL). During the Refresh Installation procedure, Setup will completely redetect all installed hardware, including the updated BIOS, and rebuild the power management HAL as well as the part of the registry in which information about the installed hardware is stored.

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1 Answer

Stuck on BIOS Screen?


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Jun 08, 2009 | E-Machines eMachines Desktop PC

2 Answers

Power,but nothing on screen


refix your ram after clean dust from it. aslo reset your bios settings,remove cmos cell for 15 minutes.then check.

Jan 04, 2009 | Intel Motherboard

1 Answer

Pavilion 525C won't start


HP Pavilion 525c/525c-b

Model Comments - 266MHz FSB, NVIDIA nForce2 IGP Chipset

After installing a new harddrive

The system may not boot and may need to be reconfigured.

You may have setup your new harddrive incorrectly.

Your system BIOS may require you to check it's settings due to the addition of new hardware.
It's recommended that you check your system bios configuration for errors after installing new hardware.

Az.

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1 Answer

Ibm netvista shuts down on start up


1. if possible check and see how dusty the system is inside.. used compressed air cans to dust it off.. don't touch any components... watch esd so ground yourself while you're at it
then test
2. you're power supply may be dying: ground yourself to the same ground as the computer (watch for esd) and replace the powersupply.
then test.
the keyboard or controller may be damaged, check for resource conflicts in your bios related with keyboard (make sure no other items are using the same irq's.. check plugs, test with other key board.. replaced motherboard.
random shut down could also mean that the cpu is overheating.. make sure the cpu fan is undusted and working.

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