Audio is easy...requires little ram to operate. Video today needs 2 GIGABITS or more for VIDEO. A lot depends in the Motherboard Processor also. If it is old, the main processor is no doubt slow. High speed internet is faster than some computer speeds and thus the computer is trying to buffer (catch up) which causes means conditions to occur. Lag time with Video is one problem.
Windows operating system is another. Win 8-10 are ok, but older OS's are slow. THEN we have a Video Card problem. Old cards require new drivers to keep up with changes. Some old Video is slow because the VIDEO RAM is too slow and old. Solution = a New 2018 Computer
all these symptoms can be from ram stick fault, graphic card or graphic section of the mother board or a failing hard drive
you will probably have to have it properly diagnosed by a computer repair shop to find out exactly the failing component
Try securing the connection between the computer and the display. Try pushing the connector into the ports on both ends. If there are screws on the connectors, make sure they all of them are tightened.
You will have to start. By servicing. Your pc . Add me on facebook for a guide on how to service. Your own pc. A pc must get new thermal compound every 3 months
1 Turn on the computer.
2 When the Dell splash screen appears during the computer startup process, press and hold <Ctrl> and then press <F11>. Then, release both keys at the same time.
3 In the Dell PC Restore by Symantec window, click Restore. Alternatively, press <Tab> to highlightRestore, and then press <Enter>.
4 When a warning message appears stating that all data will be lost, click Confirm, or press <Tab> to highlight Confirm and then press <Enter>.
The Progress window will appear. Once the restore process starts, Dell PC Restore by Symantec usually takes about 8 to 10 minutes to finish.
When the restore process is complete, the following message will appear:
The system recovery process was successful.
Likley still on your email providers 'server' .. Log-in using a web browser (Firefox whatever)
If you can't find them ij the 'In-box', look in the 'deleted' folder
When editing the BIOS if you go into the BOOT ORDER menu, it is possible that the network card is not showing as an option. In order to get this option to display, go into the "integrated devices (legacyselect options)" and then select the network interface controller. Edit that even if it is On and change it to On w/PXE. After saving the changes to the BIOS, you need to power the computer off then on and then go into BIOS again, and the "integrated NIC" option should be available in the BOOT ORDER menu. Set this to be the first boot device in order to use PXE.
Only CD is not reading or DVDs also not reading?
In any case your dvd drive is not working.
If you are familiar how to open the drive open it and clean the lens
Immediately, start pressing the F8 key once a second until the Advanced Boot Menu appears. If the computer starts up into Windows, turn the computer off and try again. Press the Up Arrow or Down Arrow key to highlight Safe Mode with Networking, then press Enter
"Hello, If that is all the computer does then the hard drive is bad or the software on the hard drive is messed up, you will have to repair or reload the software."
Tom Nichols,
Unfortunately, Dell does not have specific motherboard manuals. You can click the link below to choose your system and then download the online users manual.
http://dell.to/1H47qbF
Thank You,
Dell-Jesse L
Dell Social Media and Communities
Rochellewar,
Go to my computer and right click on the dvd drive and choose the Eject option. If that does not resolve the issue look to see if you have a small pin hole on the front of the DVD drive. If so, insert a paper clip into the hole to eject the drive. You can click the link below to watch the youtube video.
https://www.youtube.com/watch?v=Kl1jB9MJXsE
Thank You,
Dell-Jesse L
Dell Social Media and Communities
If it is locked in the bios, power up the computer and start clicking F12 over and over real fast until the bios screen comes up. Then tab to the password and remove it.
If the OS is locked, you'll have to reload the OS and have the key number available or you'll have to get a new copy of the OS.