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Hi i am having a problem with my hp 65 watt ac adapter it is getting very hot to the point were it will burn you to touch it!is it sopost to do this or do i have a serious problem?

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This is pending doom for your systems mother board if you do not replace the power supply, the first thing you will notice is the loss of use with your USB ports if this happens the next thing will be the video and other motherboard components, You should unplug the power from the wall and get a replacement power supply, If you would like to save a few dollars, you could use a universal power adaptor, stay away from the RadioShack you will save money there. The power supply from HP is a little over 1 hundred dollars- the after market power supplys should run about $35.00 to $65.00.

Posted on Nov 05, 2008

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Need jumper diagram and what kind of power supply does it use

Your specifications for the specific machine you mentioned are as follows per the companies website:

External 65 W (100V-240V)
Total wattage: 65 W
Output voltage: 19.5 V
Output amps: 3.3

Buy it here for about 27$ usd

Goodluck and thanks
Questions? Just ask! Mr.Mike

Nov 18, 2015 | HP AIO PC 19-2113W

1 Answer

Power supply voltage switch

Of all the thousands of individual different types, of desktop computers out there, I have never run into this one before.
(Not like I AM going to know about each, and everyone one of them, lol; but I have been around at this for years)

Looking at the Specifications on HP Support, and individual reviews on the internet; I see it uses a small external power supply.
Rated at a maximum Wattage of 65 Watts, and resembles a laptop power supply.

(I can't seem to pull up the power supply itself, to have a look at it)

If this holds true it probably does not have a switch on it, to switch from one incoming AC voltage, to another.

That is to say, 120 Volts, or 240 Volts.

If like a laptop AC adapter, it automatically sets itself to the incoming AC voltage; from your home, or place of business.
Uses the PFC technology; Power Factor Control,

Obviously the article is for a Switched-Mode Power Supply, as used in a desktop computer. (SMPS)
But the PFC information they give, also applies to a laptop type power supply. (AC adapter. Commonly known as a 'Charger')

On the label sticker for the power supply, it should state;
Input: AC @100 ~ 240V

Alternating Current at 100 to 240 Volts.

IF not, then there may be a Slide switch, or a Rocker switch.

IMHO there will be no switch.

May I ask what the problem is?

Moved from one country to another?
All you should need, is a type of adapter plug; to go onto the plug of the power supply, so you can plug it into a surge protector.

Or plug the power supply into a surge protector it fits, and use the plug adapter for the surge protector's power cord.

Post back in a Comment, Anita.


"The Pieces Included........"

Mar 17, 2013 | Compaq CQ2103WM-B (884962083048) 17 in. PC...

1 Answer

Hp touchsmart pc iq790 wont start up after power cut

1) Hold the Power On button in, and turn the computer off. (10 seconds)
Unplug the computer from power.

Press, and hold the Power On button for 10 seconds. Let go.
Do this same procedure two more times. Keep performing until the Power On LED quits lighting up.

Plug the computer back into power. WAIT 1 minute, turn the computer on.

Just trying to see if clearing CMOS Error Codes may fix the problem.

2) More than likely the power brownout, or utility company working on the line, has burned out the power supply.

(No. The nimrod journeyman lineman/men, are not responsible for damage to your electrical appliances. !O_O!
Nor is the utility company )

The power supply is a combination, of the AC adapter that you plug into the all-in-one touchscreen desktop computer, and the power section of the motherboard.

AC adapter:
Use a multimeter, and check the voltage output of the AC adapter;

An economical multimeter can be purchased for as little as $5 to $12, here in the States.
Available in a multitude of stores. An auto parts store is but one example. Sometimes the checkout aisle racks of major discount stores have them. Places like Radio Shack have them.

For an economical model it can be an analog model, or digital.
The Positive (Red) probe lead is plugged into the DC port on the multimeter. (Red hole that has DC listed by it as one of the options)

The Negative (Black) probe lead is plugged into the hole on the multimeter, that is Black. (Or has a Minus - sign next to it)

The Function knob is turned to DC Voltage. If just a symbol, the symbol is a dotted line over a solid line.
If there is more than one DC Voltage scale, turn it to the 0-50 volt DC scale.

The plug end of the AC adapter that plugs into the all-in-one touchscreen, has a Center Hole, and a cylindrical metal shell on the outside.

The center hole is the Positive connection, and where the Positive (Red) probe lead goes.
The cylindrical outside metal shell is the Negative connection, and where the Negative (Black) probe lead is touched to.

AC adapter plugged into power, test the AC adapter.
You should be reading 18.5 Volts (DC), or a little higher.

[ Also although it isn't directly connected to this diagnoses, I feel it it would also be good thing, to check the cables while you're at it.

While testing with the multimeter have an assistant, gently wiggle the cable from AC adapter TO computer, and the power cord TO AC adapter.
A fluctuation in the reading on the multimeter indicates broken wires in either the cable, or the power cord ]

AC adapter checks out?
Problem is with Electrolytic Capacitors on the motherboard, and/or Power MOSFETs.

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

With this style of desktop computer, you CANNOT just touch the metal frame of the open computer, and relieve your body of Static.
You need to buy, and wear an ESD wrist strap, and have it's alligator clip attached to a good ground source.

Electro Static Discharge. Average cost is around $3 to $6. Here is one example,

I connect the alligator clip to an unpainted surface, of the metal frame of an open, empty desktop computer case.

(I feel an Anti-Static Mat is unwarranted. I do not want my wrist connected to the utility companies ground source. May be a quick storm blo-w in with lightning, or some journeyman lineman may scre-w something up when doing line construction. Yes. I hold a journeyman's license, lol!)

You can also set a large metal serving tray (Unpainted), on the table you're working on, and connect to it.
Or perhaps a large metal knickknack. (Unpainted)

Open the covers,

This MAY help,

A look at the motherboard,

Visual identification of 'bad caps',

Check to see if any of the Power MOSFETs are blackened, or blistered. Average example of a Power MOSFET,

Apparently the same motherboard, is used in an HP TouchSmart IQ770 also,

Also check to see if there is any apparent damage, to other electronic components on the motherboard

I can guide you in replacing Electrolytic Capacitors.
(They are Radial Aluminum Electrolytic Capacitors)

This guidance is for replacing Power MOSFETs, or other SMD's.
(Surface Mount Device),

( You can use a low wattage soldering iron { 25 Watts }, and that beveled tip also. Do not need a Soldering Station.
DO NEED rosin flux paste, .030 Rosin solder, Desoldering Braid, (Solder Wick), damp sponge for cleaning soldering iron tip, old toothbrush, and a steady hand )

Just an example of a Fairchild Semiconductor - FDS6679 - Power MOSFET, one place to get it from, and average cost,

One Dollar and one Penny, USD.

Same place for Radial Aluminum Electrolytic Capacitors.

How to identify the manufacturer, and manufacturer code on an Electrolytic Capacitor,

(Japanese and Taiwan manufacturer info)

For additional questions please post in a Comment.


Oct 21, 2012 | HP TouchSmart Computers & Internet

1 Answer

Need to replace my HP TouchSmart IQ845uk AC power adapter, require spec's ie watts etc. Can anyone help?

It uses 230 W power supply. Please visit

Sep 06, 2012 | HP TouchSmart Computers & Internet

1 Answer

What graphics card is compatable for hp d530

I'm not going to go through a list for you, but I can tell that you don't have many options. The HP Compaq Business Desktop D530 uses a small form factor which means you don't have the same space as normal desktop users inside of your machine for the vast majority of display adapters. You would need at least a medium form factor for that.
The other problem is that your power supply is only 185W and can't supply the the amount of power needed for most desktop class display adapters.
The machine you are using wasn't designed to ever be used for gaming, and it shows. You would need to get a bigger computer case and higher watt (around 400 to 600 watt) power supply to support most desktop display adapters.

Jun 26, 2012 | HP Compaq d530 CMT PC Desktop

3 Answers

I can't get it to turn on ; when I pess the on switch, the blue light does not come on

try pull out the ac adapter and battery. Hold down the power button for 30sec-1min. Reconnect ac adapter and see if you can power back on.

Test your ac adapter to make sure it's not dead. You can get instructions on how to do this on

Dec 15, 2010 | HP Pavilion a1010n (PS563AA) PC Desktop

1 Answer

Can I use a PowerLine universal ac adapter 3 12 volts DC/600ma to power Acer Travelmate 2300 series

No. It is rated at 600 MA which is way too small. The acer needs a 60 watt adapter. Please search online for the best price and get the proper adapter. About $40.00

May 01, 2009 | Computers & Internet

1 Answer

Hi; I Have a Dell XPS 1530 which is dull if I do not have it plugged in. I have three Targus power cords and cannot use any of them. The one that has the S35 tip fits, but only engaged...

I am showing the AC adpater specifications as:
Input Voltage Range: AC 100V - 240V
Output Voltage: DC 19.5V
Output Current: 4.62A
Power: 90 Watt
Does your adapter meet those specifications?
Although I am a proponent of Targus products, possibly purchasing an OEM adapter may solve the problem. We have successfully purchased ones available from reputible vendors on eBay at a discount.
Have you checked to always show the battery status in the system tray so that you can verify when the AC adapter is actually charging versus an intermittent connection or malfunctioning power socket?

Oct 22, 2008 | Computers & Internet

1 Answer

The AC adapter that I brought from Best Buy doesn't have enough power to get my computer to- charger-up. The S/N of my computer is T3A6931000974. The tec from best buy said that the adapter didnt have...

Looks like a 90 watt AC adapter will do what you need

Sep 05, 2008 | Gateway Computers & Internet

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