Question about Dell OptiPlex Computers & Internet

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[krst] Problem on Dell optiplex 170L

This fails on boot only show a [krst] message. F2 or F12 don't work, after beep cpu is shutdown, i changed a battery and power supply. Please Help me!

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  • Dell Master
  • 27,725 Answers

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them they could be faulty

make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty or just replace them they could be faulty ?

make sure the CPU central processing unit has thermal grease and a dust free secure seating

even something as small as an electrical extension or a faulty fan lead can cause this problem follow the troubleshooting procedure a computer needs all of the data and electrical current to travel through every working device and to have an end for a computer to be able work properly


motherboard and a hard drive any leads between them will fail before your motherboard or your hard drive check all electrical extensions make sure they are securely seated even the cd/dvd drives need to have current go through make sure these devices are working

the beep might be ram check your computer ram and cmos battery to make sure they are securely seated and the battery has plenty of charge
some motherboards cmos batteries are soldered in

hope this helps

Posted on Feb 14, 2012

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Posted on Jan 02, 2017

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SOURCE: dell optiplex 170L hard drive recognition

Ms Driver gets flaky sometimes. Get New driver from Dell Downloads.
Contact Dell Support for more INFO

Posted on Oct 08, 2008

  • 153 Answers

SOURCE: my Dell optiplex 170L keeps turining off and then

Possible that it's caused by a faulty hardware or a computer virus on your computer. For us to isolate the issue we must start troubleshooting with the hardware

1. Remove all the connection at the back of your computer
2. Power cycle your computer tower by pressing the power button for 15 seconds
3. Plug the power cord back in and monitor cable at the back of your computer tower (if it turned on, meaning that one of the device plugged at the back of your computer is the one's causing the problem, for you to pin point the problem, try plugging it one-by-one and turn on the computer each time you plug a device)
4. If it keeps on doing that, open up your computer tower (be careful to unplug the power cord and power cycle it to avoid static electricity)
5. Reseat the video card, turn on the computer again, if it's still occurring
6. Reseat the IDE/Sata cable of your hard drive and try to make sure it's properly plugged in, turn on the computer again, if it's still occurring
7. Reseat the memory, turn on the computer and test it again if the same thing
8. If you have 2 memory chip inserted in your computer tower memory slot, remove the other one and turn on the computer, do the same thing to other memory and each slot
9. If all else fails, restart the computer and keep on pressing F8 before the window welcome screen comes up - to go to advanced boot options
10. Boot to Safemode
11. If you are able to boot to Safemode
12. Login as administrator
13. Click start
14. run
15. type msconfig then press enter
16. click on startup tab and click on disable all button at the bottom part
17. Restart the computer and let it start normally
18. if the same thing happen, boot to safemode again
19. Login to administrator again
20. Right click my computer
21. Click on properties
22. Click on Advanced Tab
23. Click on settings button under Startup and Failure
24. Uncheck the Automatically restart under System failure
25. Restart the computer in normal mode
26. Tell us if you see any blue screen error, if so, post the error here

if all else fail, your operating system needed to be reinstalled and you should have the cd for the operating system if it's XP or Vista or Windows 7.

Posted on Jan 09, 2010

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Good Day,
That is quite an easy thing to do.
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Try running the Check Disk Utility.

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How can I clean the hard disc & re-install windows on my Dell Optiplex 170L computer?


Put the windows cd in the cd drive. Restart your computer while pressin Del or F2 to go to the system BIOS and go to Advanced BIOS settings and go to boot order or boot sequence, select Cd/Dvd to be the 1st device on the list. Hit F10 to exit. Your computer will restart and boot from the cd. On the first screen, just press enter. Then F8 to accept license agreement. Then you will press esc. Select the partition that you want to clean up! Select the first option (quick NTFS), then press F to start formating! Wait and follow the instructions on the screen.

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How to boot from a USB CD/DVD ROM MY System is Dell Optiplex 170L Thanking in advance


If you want to boot from a external cd/dvd rom here's what to do.
  1. Connect your USB CD/DVD ROM to your computer.
  2. After connecting, you must start from boot up. so Reboot your computer.
  3. You must go to your bios settings, so during boot, press DELETE or if it doesn't work reboot again and try F2.
  4. Now once on the bios settings, search for the boot device, or boot priority.
  5. You must make your USB CD/DVD ROM as First boot, or just place it at the top of the list.
  6. You can adjust the position by pressing (-)minus and (+)plus signs in your keyboard.
  7. Now once the USB CD/DVD ROM is at the top. press F10 to save the changes and click Yes.
  8. And that's it. Your PC will now boot from the USB CD/DVD ROM.
Goodluck, Hope my solution will help, Please give some feedback regarding my solution.

Thank you very much for using Fixya! Have a Great Day!

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My computer does not boot up and hangs


Hi, Due to false shut down, your windows has been corrupted. You need to install the new OS and format the PC. The new OS will fix the problem. And do remember always that never do a false shutdown.
Regards, polysandy

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If I recall correctly, we had this happen when we first got our 170L's. The problem was the actual on/off switch on the unit was defective. Ours were still under warranty so Dell replaced the units. If you have spare 170L's you can pop the faceplate and swap on/off switches to see if that corrects the issue and then order a switch from Dell.

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