20 Most Recent Dell OPTIPLEX 745 PC Desktop Questions & Answers

DELL 745 series (dell OptiPlex desktop ) that? 14 years old today.
That is BIOS going nuts for 1 or 2 reasons
first if 14 years old facts of life.
the RTC coin cell is bad. replace it first
here is the list of PCs over 7 years old.
yours is 2x that, ok?

replace this now or BIOS goes NUTS, Wonky/wacky.
2: then we test the HDD most this old are bad.
ask how to test the HDD,

3: if HDD tests ok try the magic HP F11 key.
aka: the HP Recovery partition factory reset to day 1, trick (covered in the free manual at hp.com

the best hdd test of all is.

Dell OPTIPLEX... | Answered on Mar 04, 2019

make sure you are using the manufacturer rated system battery button. if it still is going dead then there may be a motherboard elec leak, bad battery compartment or your power source may be going bad? hope that helps you get direction

Dell OPTIPLEX... | Answered on Apr 27, 2018

You have fried your power supply. If you are lucky, that is all you have done but when it blew, there is a chance it sent a surge that also damaged the motherboard or some other component.
Replace your PC heart How to install power supply in your computer

Dell OPTIPLEX... | Answered on Jun 11, 2017

This may be a motherboard failure as the controller chip is onboard. Try unplugging all peripherals,drives, pci cards first and setting the reset jumper for 30 seconds. If that doesn't work then a motherboard replacement most likely.

Dell OPTIPLEX... | Answered on Jun 07, 2016

Or instead of having to open up your computer and messing with the mobo. Just use the control panel in to disable the headphone jack.

Dell OPTIPLEX... | Answered on Jan 26, 2016

if you are trying to install external card reader it is connected to the usb
if it is internal card reader it will get connected to the usb connector on motherbaord (front panel usb)

Dell OPTIPLEX... | Answered on Nov 06, 2015

Hi if the service tag is missing off the tower do the following.

Turn the PC on and press the F2 key to enter the BIOS screen, now look under the General option - System information, the service tag is listed here.

Click Exit to reboot the PC, now using another PC go to www.dell.co.uk and select the Support - Work option, then enter the tag number and down load the drivers to a USB stick and then install them on your PC.

Dell OPTIPLEX... | Answered on Jun 11, 2015


Dell OPTIPLEX... | Answered on Jun 10, 2015

You need to use a program called "check disk" which is part of every windows operating system.

For windows 8 follow the process in the this web page to do a check disk on C: drive.

How to Scan Fix Hard Drives with CHKDSK in Windows 8 TekRevue

Dell OPTIPLEX... | Answered on Feb 22, 2015

Can you boot into Safe mode. It is usually done by pressing a specific key during the POST session. If you can, then boot into safe mode and delete the Video Driver. Reboot. TYou should have a VGA display, download and install the video driver again.

Dell OPTIPLEX... | Answered on Feb 06, 2015

1. Verify it is plugged in.
2. Press power button.
- does your power supply have a switch on it? Look for a black rocker switch
3. Do you hear a beep?
4. If you hear a loud continuos beep, power down the Machine and unplug it.
5. Hold power button while PC is off, it may come on for a second.. This is called "bleeding the capacitors"
6. Open the side of the case.
7. Find the RAM (random access memory), they are long rectangles about 6inches by 1inch. Remove one.
8. Plug in power cable and start computer with one stick of RAM, problem solved, you have bad ram.
9. Remove all PCI cards, and cards that are in the back of the computer. Remove them from the white slots, there is a small screw on the side near the back of the computer to unscrew, you will need to remove a small black door that holds the cards in place. BE SURE power cable is unplugged.
10. Power the computer on. If your computer turns on, you win.
Power down Machine and add cards until it doesn't work, the card you insert and causes the computer to not boot is the card that is shorting out.
11. When you plug in the computer are there any lights on the mother board. If so at least your power supply is working.
12. No light? You need a new power supply. There are 4 screws on the outside of the case where you were plugging and Un plugging the power cable. Remove screws and remove power supply, you will need to disconnect all connections. Type any and all numbers into an Amazon search and spend the $25, Amazon is safe.
13. If you are "posting" entering the BIOS (basic input output system) you're not in bad shape. This means your power supply is working and rh motherboard is working.
14. Restart computer and keep pressing f2, arrow over to advanced, then down to "boot options" make sure your hard drive is on top of the list" if it is not, move it there.
15. press F10 to exit and save changes.
16. If USB is first in the list and you have a USB stick in your machine it will try to boot from it! Take it the USB stick!
17. Press F8 to run safe mode.
18. See how it boots or if it does.
19 restart and try to boot
20. May need to run repair
21. Google search how to get a repair disk for your operating system.

Dell OPTIPLEX... | Answered on Jan 12, 2015

Installing windows 7 isn't difficult. First, you need the disk to install it from. If you don't have that, Microsoft no longer sells this version, so it will be harder.
If you want to keep your programs and data, there is a package, "PC Mover" that you can buy that will help you preserve all your data and programs. I've used this many times to help upgrade systems like yours.

Dell OPTIPLEX... | Answered on Nov 10, 2014

It will depend on the model as not all laptops have them, they are norally found on the front of the laptop to the right of the lid release button.

Dell OPTIPLEX... | Answered on Sep 04, 2014

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