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Computer Hardware Sir, I purchased a compaq computer and at the back panel of the computer when i touch it i feel a soft shock of current thought when i try to detect it with a tester the light does not glow, is this a major fault shall i take it to service station to get fixed, is it going to damage my computer fully, i am confused about it please instruct me, your support will highly be appreciated

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Is this a laptop? If you unplug the ac adaptor do you still get the shock? It will only help you narrow down the problem as far as if it's the dc power jack or other. You should NEVER be getting a shock from your pc. It indicates a short or ground problem. If this is still in warranty I would have Compaq fix it. If not I would definitely get it checked out before it gets worse.

Posted on Mar 17, 2008

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When you touched the back panel are your feet set onto the floor barefoot? don't try that anyway. but if you're wearing a sort of insulation then most cases the slight current is normal to a PC. See your power cable if you're using a 3pole plug with the one in the middle as your ground. That middle terminal for ground is suppose to earth ground, if that is effectively connected then you should not have that "shock". Therefore check your grounding if it is properly connected.

Posted on Mar 17, 2008


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Remove media reader

HP Support > Pavilion a6030n Desktop PC > Main Support page,

I would like you to click on - How to - in the list, then -
Adding/Replacing hardware

1) Opening the PC Case
(Watch out as a video starts to play automatically. If you are not ready for it, the thought was it might startle you)

Computer unplugged from power, remove the Side Panel.
Once the Side Panel is removed -> STOP!
FOLLOW Anti-Static Procedures

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static BEFORE reaching inside your computer.

Computer on a table, (Or workbench), computer Unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal framework of the computer case.
This action will relieve your body of Static.

IF, you leave your computer in the middle of working on it, be SURE to Touch the metal frame again; upon your return.

Side Panel removed, now it's time to remove the Front Panel,

Use the Back Arrow, and go back to the previous menu.
This time click on -
Removing the Front Cover

(On both pages listed above, suggest not only watch the video, but view the entire page )

The Front Panel on your PC, is actually just a Cover.
No wires, bells, or whistles attached.

Lastly, use the Back Arrow, and go back to the menu again.
This time click on - Replacing the Memory Card Reader

If you have ANY questions along the way on this, please post back in a Comment.


Apr 26, 2013 | HP Hewlett-Packard Pavilion a6030n Desktop...

1 Answer

It wont turn on when its plugged in

Pertaining to a Compaq Presario SR1500NX Desktop PC;

Let's see if the problem is a $5 ATX Power On switch, or the Power Supply.

Use a jumper wire on the 20-pin ATX main power cable.
Bypass the Power On switch.

IF, the Power Supply comes on you have a bad Power On switch.
IF, the Power Supply does Not come on you have a bad Power Supply.

This is a look at your motherboard with no hardware components installed, and no cables,

Scroll the page down to the illustration, and photo of the motherboard.

Looking at the illustration look at the Right/Middle.
The ATX Power Connector, is the female connector on the motherboard, that the 20-pin ATX main power cable plugs into.

Match that up to the photo. Whitish long connector, with two columns of 10 socket holes.

This is a general example of a 20-pin ATX main power cable, and it's respective connector on the motherboard,

[NOTE* Color of the connectors NEVER matters ]

The photo to the right shows the 20-pin ATX main power cable, plugged into the motherboard. This is how it should be for the test. Also the Power Supply should be plugged into power.

Look at the Green wire, going into the Back of the power cable's connector.
This is the Soft Power On wire. Abbreviated as PS_ON.
This wire is briefly jumped to A-N-Y Black wire.
ALL Black wires are Ground wires.

The preferred jumper wire is a paper clip. The paper clip is straightened out, then bent into a U-shape.
The middle of the U is wrapped a few times, with black plastic electrical tape.
This area is for your fingers, and thumb to hold onto.

Turn the U upside down. The 'legs' of the U-shaped jumper wire, is what is used.
Look at the squarish socket hole for the Green wire, in the Back of the power cable's connector.
There is room for the 'leg' of the U-shaped jumper wire, to slide down in.

Slides RIGHT NEXT TO the Green wire.
Slides past the insulation of the green wire, and goes down in far enough, to touch a metal terminal.

Every wire going down into the connector, of the 20-pin ATX main power cable's connector, ends in a metal terminal.
Looks like this,
(Except the left side is crimped over, on the insulation of the wire),

The right side is what you barely see, in the middle photo on the Playtool link. The, what look to be almost black spots, (24 of 'em), are the ends of the metal terminals. (Right side)

For this reason you need to ensure the 'leg' of the jumper wire, is going down past the Green wire's insulation, and actually touching the metal terminal. Otherwise you have made no contact with the jumper wire, at all.

The other 'leg' of the U-shaped jumper wire, goes down into A-N-Y socket hole in the Back of the power cable's connector, that has a Black wire in it.

The contact made is no more than 2 seconds.
(The Power On switch is a Momentary Contact Switch)

Worried about Shock?
1) There may be a small spark. This is just the way electricity acts when you complete a circuit, and touching an open wire.

2) The Soft Power On circuit is 5 VOLTS DC.
In comparison two D cell flashlight batteries store 3 VOLTS DC.

For me? Shock is none, or minimal. YOU, may wish to wear a glove, on the hand that holds the U-shaped jumper wire.
Just want you to feel safe.

[Your Power Supply is an Inverter. It converts AC electricity from your home, or business, into low DC electricity.
120 or 220 Volts AC down to three low DC voltages;
A) 3.3 Volts
B) 5 Volts
C) 12 Volts
All are DC voltage.

{ Just like a line pole transformer steps down 7,200 Volts AC single phase, into 220 Volts single phase, for your home} ]

BEFORE reaching into your unplugged from power, computer, FOLLOW Anti-Static Precautions;

Anti-Static Precautions
Your body carries Static electricity. Static WILL fry out
(Short Circuit), the delicate hardware components inside a computer.

Computer on a table, computer unplugged from power, computer case open; TOUCH an unpainted surface, of the metal frame of the open computer case.
This action will relieve your body of Static.

{You are 1/10th less concerned about getting shocked, as you are about Static shocking your computer hardware parts }

IF you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

Replace Power On switch:

The Power On button is a plastic assembly. Inside the assembly is just a regular ATX power on switch. The following example is used in a LOT of Desktop PC's,

The Front Panel of the computer is removed, to access the Power On button assembly.

BEFORE removing the Front Panel, make notes, and a drawing, as to where on the motherboard, ALL the wires go to from the Front Panel. This is in case you accidentally bump a wire loose }

The plastic of the Power On button assembly becomes brittle with age, and heat from the computer.

Once removed from the Front Panel, here are two methods I have used, to remove the Power On switch without breaking the plastic Power On button assembly;

1) The Power On switch has been deemed to be no good. Doesn't matter what happens to it from here on out.
I use a small bowl of VERY hot water, and dip the plastic Power On button assembly down into it, while holding onto the wires.

Once it is felt the plastic has softened, I ease back on one tab, at a time, and ease the Power on switch out.
You have to use finesse, and feel if the plastic is soft enough, before you start bending on any tabs.
If not, re-dip in the very warm water, until you feel it is.

2) Use a hair dryer, and heat the plastic up.

In both cases you are dealing with a very warm to hot plastic object, so use gloves, and caution.

[Want to buy the entire Power On button assembly? Sure.
A) If you can find one. If so from an 'auction', remember the Power On switch inside, is U-S-E-D. Who knows how long it will last?
Same if a local computer shop has one.

B) HP Parts? May have one. If so, can you say OUCH? $$ ]

Replace Power Supply:

The Power Supply is just a regular ATX style, and 250 Watt.
Approximate size is 6 inches Wide, 5-1/2 inches Long, and
3-1/2 inches Tall.

This is one example of a Power Supply that is reliable, and compatible,

120mm fan is larger, than the 80mm fan of your old Power Supply
Larger fan turns slower, but produces more air flow.
Turning slower also makes it quieter.
(Unless you are gaming at full throttle! But the game sounds will overshadow the fan noise! Lol! )

550 Watts. Means your computer won't strain for power.
(Note* A computer ONLY uses the power it needs, and NO more.
If it only needs 100 Watts, for example, when surfing the internet, it ONLY uses 100 Watts )

Has all the power cables you'll need, and more.
(Tie the extra power cables up out of the way with plastic ties.
If you need them in the future, you'll have them)

The ATX main power cable has a 20 + 4-pin connector.
Means it can be used as a 20-pin ATX main power cable, which you need; or a 24-pin ATX main power cable.

Want to test the Power Supply before buying a new one?
You need a multimeter. An inexpensive, but good enough for this test, multimeter, can be purchased for as little as $8 to $12.
Available in a multitude of stores. An auto parts store is but one example.

Post back with multimeter in hand, and I'll guide you.

Guide to opening the computer case, and removing Front Panel,

Scroll down, click on the blue -> Upgrading and Servicing Guide

For additional questions please post in a Comment.

Jul 19, 2012 | HP Compaq Presario SR1500NX (PX786AA) PC...

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How do i remove my compaq presario 2200's hard drive?

The Compaq Presario line is one of the longest-running series of computers, originating in 1993 and remaining in production even after the purchase of Compaq by HP. Because of this, many Compaq Presario desktops have required that some of their parts be upgraded or replaced because of the wear that they have received over years of standard use. One of the more commonly replaced Presario desktop components is the hard drives, especially given how much hard drivemag-glass_10x10.gif storage capacity has increased since the Compaq Presario line was introduced. Replacing a hard drive in a Compaq Presario desktop isn't difficult, and can usually be done in a matter of minutes even for users who aren't familiar with computer upgrades.
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How do I get to the memory sockets on an HP Pavilion 6736?

1) Computer unplugged from Power

2) Viewing the rear of the computer case there is a Thumbscrew you loosen. It is on the Left side, approximately half way up. Doesn't come all the way out. (Shouldn't)

3) Above the thumbscrew you will see a 'Bump' in the side case cover. This is a place to put your fingers, when pulling back on the side panel.

Thumbscrew loosened, pull back on the side panel. If memory serves the side panel only comes back so far, then it is lifted up, and out.

If I may;

BEFORE you reach inside your computer, I advise you should follow some simple Anti-Static guidelines.

Your body carries Static electricity.
Static electricity will FRY out computer hardware components.
You won't see it, or feel it.

Computer unplugged from power, computer case open, TOUCH the metal frame of the computer case.
That's it.
This will relieve your body of Static.

Should you get up for any reason while working on your computer, leave, then come back, Touch the metal frame again.

Touch the metal frame before, you take the new ram stick/s out of their protective anti-static bag/s.

If you are already aware of the above, please disregard it.


(In case my solution explanation was not clear enough, here is HP Support, and how to open the computer case style you have,

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Viewing the back of your computer, you will see a large thumb screw, on the right side of the computer case.

It's to the right of that round ventilation opening. (Round shape with multiple holes in it)
Unscrew the thumb screw to the Left, to loosen it.

The side panel that the thumb screw is in, pulls back towards the rear of the computer.
If you look, there is a place to put your fingers at the end of the side panel.
(Raised 'Hump' in the sheet metal of the panel)

Hold the top of the computer case with one hand, pull the side panel back with the other hand.

The computer MUST be unplugged from power before proceeding!

Not only is there a possible issue for Your safety, but also the computer's!
You will fry out the Ram Memory stick/s if you remove, or install with the computer plugged into power.

Also,......there is an Anti-Static issue that needs to be addressed, BEFORE you reach inside your computer

Your body carries Static electricity.
Static will fry out the hardware components inside a computer.
(In a Flash!)

Work on a table. Computer unplugged from power, computer case open. TOUCH the metal frame of the computer case BEFORE you reach inside.

TOUCH the metal frame Before, you take those ram sticks out of their protective antistatic bags.

Should you get up for any reason, walk away, then return, Touch the metal frame again.

Refrain from touching the gold plated contact pins, on the bottom of the ram stick.
You can handle the ram stick anywhere, but on those contact pins.
The ram stick is coated with a see-through plastic.
The contact pins are not.

Should you need advice on how to remove, and install ram memory, please state so in a comment. (Top right of page)

This is HP Support, and the download page for the -
Upgrading and Servicing Guide, for the Compaq Presario SR1630NX,

On this page scroll down to - Upgrading and Servicing Guide.
Left-click right on the name.
This is a PDF file download. Give it a few seconds.
After you see the first page, you will note there is a download progress bar.
Let the file download all the way Before looking through it.

Should you wish to save this file to your computer, please come back, and state so in a comment.

The Upgrading and Servicing Guide has illustrations, and instructions for;
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2) Removing the Front Panel
3) Locating hardware components inside the computer
4) Removing and Adding a Drive. (Harddrive and Optical Drive)
5) Adding Memory
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