Question about HP TouchSmart IQ504 PC Desktop

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Hp touchsmart wont power up

LED on power supply lights up green. Built-in desktop lamp at bottom of screen lights up. When I pess the power button there is no response

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  • HP Master
  • 3,799 Answers

It would seem that your power supply has failed. If you can open it you should check all of the connectors inside are tight. Make sure the power is off and the mains lead is unplugged from the wall.

Posted on Apr 20, 2013

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Posted on Jan 02, 2017

  • 35 Answers

SOURCE: hp pavillion desktop will not

Step 1 : Turn off the system by pressing the power button for 5 - 10 sec until the power LED is off. Removed all cables including the power cable (Exclude monitor cable and KeyBoard/Mouse).

Step 2 : Press power button for 5-10 sec again to drain fela power.

Step 3 : Reconnect the power cable at the back of the tower/computer and power on the system.

**If the same problem exists, Call HP tech Support (800-474-6836) because there is a high possibility that you have a bad Motherboard or Power Supply on the system.

Posted on Oct 28, 2008

jtuckerj
  • 59 Answers

SOURCE: HP computer doesn't turn on

Your power supply is bad--you will need to replace. I suggest looking at tigerdiect for a replacement.

Posted on Dec 12, 2008

Hardtack
  • 46 Answers

SOURCE: My HP touchsmart desktop  powers

First of all try shutting down the computer completely, and unplugging it from the wall for about 5 minutes. Sometimes this is enough to reset the internal usb devices. This computer gets very hot, and can drop devices when overheating. If that doesn't work then try plugging in a wired usb mouse, then do a rollback using system restore to the last known working state. Also think about any recently installed programs and how they may have affected your computers sanity. Does the touchscreen still make sound when pressed? The nextwindow touchscreen should always work, even if not properly calibrated it should always be on, because its controllers are hardware, unlike other touchscreens that use software to calibrate. Check the device manager to see if any HID compliant mouse devices are listed at all. There should be at least two, one for the screen and one for the mouse.

Posted on Feb 10, 2009

  • 11 Answers

SOURCE: wont start power supply binks

What do u mean u unplug the motherboard...?

Posted on May 27, 2009

benwabnick
  • 2404 Answers

SOURCE: power light flashing

Sounds like the Power Supply is bad likes its not able to power on itself. Best thing to do, try a different known good power supply and attach it to the motherboard, if you get the same symptom with the machine not powering on then its a bad motherboard. If the machine does power on then you know your original power supply is bad.


Posted on May 28, 2009

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1 Answer

No power to hp envy


Hi,
I suggest you step by step follow check it your Desktop issue.
A> All power plug proper connect or not, if possible change another port.
B> Have your ups get power or not, If ups on then nest step follow.
C> Check it SMPS on or off position. If your power ok and come to smps or smps not start then you SMPS damage position, you check it smps ok conduction or not..

Checking method:
SMPS more wire available you see it one more bulk wire available and black wire and green wire cross check, if not start smps then damge. But my friend if you smps ok or your are wrong wire attach then may be your smps damage. So better contact good Computer Hardware Technician.

Thanks.
Computer Support

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1 Answer

Hp touchsmart 520 when i press the power button the blue light come on sound like it turning on but a blank black screen done this from new


Let it power on. If it plays the normal windows music then look very carefully at the screen. You may need a flash light. If you see a faint image then your inverter board or back light have burnt out. It will a small board 1 x 2 inches usually and have a small wire coming from the power supply and one going to the bottom or top of the screen.

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Dc 5000 sff. wont power up. green light on motherbd flashes. if power on button is pushed, the front green led blinks too. I have replaced the pwr supply w/no change.


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Also had this issue on the Touchsmart IQ526. Removed the CMOS battery, waited some minutes, then powered on. The power button remained blue and had video again. Reinserted the CMOS battery and put the unit back together. Note - the battery was on the mainboard.

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2 Answers

Hp TouchSmart 310 wont start,power light flashes


The LED light has now turned into a diagnostic light. The fault is a bad Power Supply.
Replacing it however, is easier said than done.

I don't know what exact model of the Touchsmart 310 series you have.
(Examples such as TouchSmart 310-1000Z, or 310-1125f, or 310-1155y, etc.)

The TouchSmart 310 series of All-In-One desktop computers, has a battery, and an AC adapter, (Charger), for power.

Test the battery with a multimeter set to DC Voltage.
{Symbol is a dotted line over a solid line. If there is more than one DC Voltage setting, set it to 0 - 50 Volts }

Should be close to 18.5 Volts (DC)

Battery is low?
Check the AC adapter (Charger)

The middle metal cylinder of the plug that goes into the computer, is Positive.
The outside metal shell which surrounds it, is Negative.
Again, 18.5 Volts (DC)

Check both then post back in a Comment.

Regards,
joecoolvette

Nov 04, 2011 | HP TouchSmart IQ770 PC Desktop

1 Answer

I plugged in my tower and i heard a loud high pitch beeping sound the green led light in the back was on but the power button turns green and the green led light in the back turned off there is no signal...


the green led light is it beside the network cable connector. if it is so, then it is always meant to be like that when you power up your computer. it is not something serious and it is normal.

Aug 18, 2010 | HP Pavilion 533w (P9859AR#ABA) PC Desktop

1 Answer

Does not power up. LED light near plug on on &


trouble shoot it first before we say that it is power supply, disconnect and connect it to ac sourece, press the power button, if no effect, it is power supply, but if the fans work, replace or check the vga cale to monitor, or the monitor itself

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