Question about Dell Dimension 2350 PC Desktop

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My Dell 2350 goes on for 3 seconds off for 3 seconds and keeps repeats

Unit goes on and off at 3 second intervals, have unplugged it for 2 days repluged got same problem

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  • Dell Master
  • 27,725 Answers

Test your PSU power supply unit or replace it if your power supply units fan is not working your PSU is faulty
http://pcsupport.about.com/od/toolsofthetrade/f/powersupplytest.htm


Testing and replacing the PC power supply
http://www.youtube.com/watch?v=hbNxhvm0czs

One bad lead can cause a computer to continue on a cycle of restarting or to shutdown or fail to detect ,boot up a computer hard drive

WARNINGBefore you start troubleshooting remember that you are dealing with electricity that can KILL.
http://www.kitchentablecomputers.com/static.php - rules


Only work inside the computer case when the power has been switched off and disconnected. Never open the power source.


Some of the below steps recommend removing physical parts within the computer.
While in the computer it is highly recommend that you be aware of ESD and its potential hazards


Test all leads that attach to your hard drive power and data cables IDE ,SATA
the leads from yourMOTHERBOARD TO YOUR HARD DRIVEmake sure they have a secure dust free connections and are not faulty or just replace them they could be faulty


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


Computers need power and data to travel through every working device to continue its cycle and have an end so any faulty leads will end up with a computer error.


Even something as small as a faulty electrical or fan lead can cause you problems


Motherboard and a Hard Drive any leads between them will fail before your motherboard or your hard drive if its a flat ribbon 40 pin type IDE replace it this will be the first to fail.


Check all electrical power input and extensions make sure they are securely seated even the cd/dvd floppy drives need to have current go through make sure these drives are working


also check the Cmos battery and computer RAM modules make sure they are securely seated with no dust built up or in the sockets on some motherboards cmos batteries are soldered in.
Remove the memory modules from their slots.
Take the opportunity to clean the slots on the motherboards and the memory module connectors.


Use compressed air to blow dust away and clean contacts with a soft cloth.
Do not use a metallic vacuum cleaner if it touches any component it may create a short and cause damage to the motherboard or other components.


Do not use solvent that may attract dust and never poke things like cotton buds in to slots. lightly rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do the work on the copper gold or silver tabs and r


Allow the pins to dry.
They will air dry in a matter of minutes.


If reseating the memory did not resolve the issue try swapping the location of the memory.
If you have only one stick of memory in the computer try moving it to another slot and then boot the computer.
Check the memory module and memory slot contacts.
They are either copper tin or gold.
The colour will tell you which they are.


Mixing tin and gold can result in corrosion that prevents proper contact.
Look for any sign of physical damage to the memory module, memory slots or the motherboard.

Reseat the memory modules.

You should hear an audible click when they are in place.

Check you CPU central processing unit make sure its securely seated and has thermal paste it might be getting to hot the thermal paste will help disperse the heat

Thermal compound is a sticky paste that is placed directly onto the CPU.
http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-February-2012/1490


Allowing for a more direct heat transfer between the CPU and HEAT SINK and preventing air gaps from forming between the CPU and heat sink.


Another possible reason could be a memory dump you might be running to many programs at the one time putting to much strain on the CPU central processing unit.

If you can get your computer stable enough

scroll to bottom toolbarbottom of screen right click select task manager
applications you will see whats running if you see anything you dont need running select end now

also under processes see what is ticking over again if you see something you do not need to be running end nowor you might uninstall that program and some unnecessary programs


Remove the memory modules from their slots.
Take the opportunity to clean the slots on the motherboards and the memory module connectors.


Use compressed air to blow dust away and clean contacts with a soft cloth.
Do not use a metallic vacuum cleaner if it touches any component it may create a short and cause damage to the motherboard or other components.


Do not use solvent that may attract dust and never poke things like cotton buds in to slots. lightly rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do the work on the copper gold or silver tabs and r


Allow the pins to dry.
They will air dry in a matter of minutes.


If reseating the memory did not resolve the issue try swapping the location of the memory.
If you have only one stick of memory in the computer try moving it to another slot and then boot the computer.

not having enough computer ram can cause memory dumps

If you are not sure if a module is right for your system use the Crucial Memory Advisor tool for a list of guaranteed compatible modules.

first you will need to select the manufacturer from a drop down list then select your product line from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system

you should always for a guarantee on any ram modules when purchasing them or buy working pairs if possible.

Posted on Mar 25, 2014

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Posted on Jan 02, 2017

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