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Computer can't start

Remove and back RAM memory and in many cases you can absolved this problem.
Or turn off computer and unplug cab and plug back.Turn on computer.

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ram not working


Step 1:
A memory slot is a slot in your motherboard where you place your RAM (Random Access Memory) card. In layman's terms, the RAM is the "temporary memory" that the computer utilizes whenever it is turned on. If the computer cannot detect a RAM card installed in one of your memory slots, you have to troubleshoot the problem immediately.
Ensure that the problem is with the RAM slot and not the memory card. Turn off the computer, unplug all devices connected into the ports of your computer and open the computer casing. Refer to the manual of the computer to know the specific steps to follow in opening the computer casing. Remove the memory card from the RAM slot. To do this, unlock the card using both hands. Pull the card away from the slot to remove. Inspect the RAM card for any apparent physical damages. Wipe the card with a clean cloth to remove dust. Also wipe the memory slot in your motherboard. Place the RAM card back into the memory slot. Press the card into the slot until it clicks into place. Close the computer casing, connect the cables back into their respective slots and turn on the computer. Turn on the computer and see if the memory is detected. If the computer does not boot up, the RAM card is not detected by the computer. Assuming that you have two memory cards installed in the computer and the computer boots up, check if the second memory card is detected by the computer. Click "Start," right-click "Computer" and then "Properties." Under "System," check the amount of "Installed Memory (RAM)." If the RAM is not detected, the RAM slot or the RAM card itself may be malfunctioning. Place the RAM card into another memory slot in your motherboard and see if the card is detected. If it is detected, the other memory slot is malfunctioning. Do not install any RAM card into it to avoid further damage. If it is not detected, the RAM card may be malfunctioning. Insert another RAM card into the slot. If the RAM card is detected, the slot is malfunctioning.
http://www.youtube.com/watch?v=wGp5AiyJInI repair memory slot

Feb 23, 2013 | Computers & Internet

2 Answers

My computer is beeping two short beeps and will not boot. I have taken the back off the cpu. What do i need to do?


Suggest you remove the Ram Memory module/s, and clean the contact pins on the bottom, then reinstall.

What you hear are BIOS Beep Codes. The computers way of telling you something is wrong, and the area to look into for it.

This is Dell Support > Inspiron 531s desktop computer > Owners Manual > Troubleshooting > Beep Codes,

http://support.dell.com/support/edocs/systems/insp531s/en/OM/html/trouble.htm#wp1085300

After time, the contact pins on the bottom of the Ram Memory module/s ('Sticks') can develop corrosion.
The corrosion prevents a good contact.

According to the specifications, the Inspiron 531s uses DDR2 Sdram ram memory modules.

(DDR2 Sdram at a frequency rate of 533MegaHertz.
{533MHz)

DDR2 Sdram has 240 contact pins. 120 on each side.

The example below is DDR Sdram, which has 184 contact pins. 92 on each side.
The example is given to show you a close-up, of the gold plated contact pins I am referencing to,

http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg

(You can left-click on the photo to enlarge)

Suggestion is to take a pencil eraser, and stroke in a downward fashion on each contact pin, towards the bottom of the ram memory module.
('Stick' is slang for Module)

(The top of the ram memory module, is above the black rectangular DRAM chips, on the side of the ram memory module.
The contact pins are on the bottom side)

If you use an eraser on the end of a pencil, refrain from letting the metal 'cap' touch the contact pins.

Refrain from touching the contact pins. (Static)
The body of the module, is coated with a see-through protective plastic.

After you have cleaned each contact pin, use air to remove the eraser dust.
You can use a can of compressed air for computers, or air pressure from your mouth may be sufficient.

NOTE*
BEFORE you begin to remove the ram memory modules, or reach inside your computer; and computer unplugged from power, observe Anti-Static precautions!

Anti-Static Precautions:

Your body carries Static electricity.

Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.

(Hardware components examples, such as the Processor, Ram Memory, Harddrive, Motherboard, and graphics card/s if used)

To relieve your body of Static, TOUCH the metal frame of the open computer case.
(Computer unplugged from power)

Should you leave in the middle of working on your computer, upon your return be Sure to TOUCH the metal frame again.

An alternative method, (Best method actually), is to use an ESD wrist strap, and connect the alligator clip to the metal frame of the open computer case.
(Computer unplugged from power)

Electro Static Discharge.
One example of an ESD wrist strap,

http://www.radioshack.com/product/index.jsp?productId=2103245

Computer unplugged from power, all cables removed, I would lay the computer on a towel, on a table, and the case side that is open, facing up.

Easier to access those ram memory modules.

[ If you are not perfectly sure, where each cable plugs into on the back of your computer, now would be the time to make a drawing, and notes, before you unplug them.
Especially any audio cables that plug in ]

Removing and Installing Components: (Parts)

http://support.dell.com/support/edocs/systems/insp531s/en/OM/html/parts.htm#wp1603876

If you left-click on - System Board Components, you will get a basic idea of where the ram memory slots are located.
(4, 5, 6, and 7)

If you go back to the main menu, and left-click on
Memory, you will be guided in removing, and reinstalling the ram memory modules.

If you have any questions concerning this, or need more of a simplified explanation concerning anything I have stated, simply reply by posting in a Comment.
(Believe upper right of your page)

If cleaning the ram memory modules does not cure your problem, then I suggest you remove all ram memory modules, and reinsert one at a time

Test each ram memory module to see if there is a bad one. (Or if they all are bad)

Remove all ram memory modules, insert just one module in Slot 1.

(Place the unused ram memory modules, on a non-Static surface. Wood is one example of a non-Static surface)

On the System Board Components illustration, Slot 1 is referred to as DIMM 1.
(The number 5 points to DIMM 1)

The Processor reads Slot 1 first.

Procedure is, computer unplugged from power, install the ram memory module.
Plug the computer back into power.

Remember what I stated about Anti-Static Precautions.
To plug the computer into power, you may have to leave the seat you're sitting in.
TOUCH the metal frame upon your return.

Turn the computer on. See if the ram memory module is good. (No 2 Beeps)

Ram module checks out, shut the computer down normally. (Start> Turn Off Computer > Turn Off)
Unplug the computer from power.

Observe Anti-Static Precautions.
Remove the ram memory module. Place it on a non-Static surface. (Wood)

Insert the next ram memory module. Plug the computer back into power.
And so on.

Jul 03, 2010 | Dell Inspiron 531s Desktop Computer

1 Answer

When memory check starts, get a + then hangs


Computer unplugged from power, computer case open, observe Anti-Static precautions, then remove the ram memory module/s.

(Slang for ram memory module, is ram memory 'stick')

Use a pencil eraser, and clean the gold plated contact pins, on the bottom of the ram memory module.

Just rub the eraser on the contact pins.
(If the eraser on the end of the pencil is attached by a metal sleeve, refrain from letting the metal sleeve touch the contact pin/s)

When handling the ram memory module, refrain from touching the contact pins on the bottom.
You can handle the ram memory module anywhere else, as the body is coated with a see-through protective plastic.

Lay the module on a wood table, or other non-Static surface when cleaning.
Example of a DDR Sdram ram memory module as used in a Pavilion 523n,

http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg

Use air to remove the eraser dust.
(You can use a can of compressed air for computers, or air pressure from your mouth is sufficient)

Reinsert the ram memory module/s. Close the computer case, plug back into power. Wait 1 minute, turn the computer on.

[Anti-Static Precautions:

Your body carries Static electricity.
Static WILL fry out (Short Circuit) the hardware components inside a computer.

Working on a table, computer unplugged from power, computer case open, TOUCH the metal frame of the computer case (Unpainted surface) to relieve your body of Static.

Should you get up, and walk away in the middle of working on your computer, upon your return Touch the metal frame again ]

Opening your computer case.
Looking at the Back of the computer, there are two screws on the far right edge.
One above, one below.

Remove the two screws, slide the side panel back about 1 inch, tilt the side cover top to the outside, remove the side cover. (If memory serves)

Should you need guidance in removing, and reinstalling a ram memory module, hit me up in a Comment.
(Believe upper right of your page. Fixya is constantly under going change to improve the website)

HP Support > Pavilion 523n > Product Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph07767&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=90387


HP Support > Pavilion 523n > Motherboard Specifications (Scroll down to see an illustration of the motherboard, and photo below it)

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph07899&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&lang=en&product=90387


Jun 15, 2010 | HP Pavilion 523n (P9851AR#ABA) PC Desktop

5 Answers

I took out the RAM card to see what kind it was and after I put it back in, the computer won't come back on. HELP>>>>


Take the RAM card out altogether and boot the machine to see if it is OK. You should get a RAM error. If it does start to boot then jump into BIOS setup and check everything. Then turn off the book and reinsert the RAM and make sure it clicks into place correctly. Turn on the machine again and it should alls be OK. If not then its repair shop time.

Sep 11, 2009 | Toshiba Satellite A135-S2386 Notebook...

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