Question about Dell Dimension 4600 PC Desktop

1 Answer

Chassis itruded problem

Dear Sirs
i have tried many times to solve this problen but in vain . Although i am a well-trained technician but solution . i ant enter the bios .
please tell me how to settle this problem

PC halt indicating chassis F1 to continue or del to enter setup,pl suggest

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 202 Answers
Re: Chassis itruded problem

1. Try clearing the bios manually by shorting the jumpers (i think u what i mean).
2. Try recovery of the bios memory (if it supports)
3. Try reflashing the bios (get the latest bios updates from net)
4. disconnect the intrusion alarm device/switch
5. press F1 and continue to windows -> use the board vendor supplied tools to access the intrusion alarm log and clear it



have a nice day

Posted on Jan 27, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:


HP desktop power-supply LED lights, but system shuts off/hibernates during...

The "Problem" section below describes a startup problem my 9-year-old HP desktop developed last week. You may be seeing similar behavior in your HP desktop, or even in another brand. The "Solution" section describes a simple fix (cost: ------

Our HP Pavilion a220n tries to start up but turns itself off or sometimes hibernates in the middle of booting up. Although I got it all the way to the login screen once, it then shut off again. It is not stable enough to use or to copy our files over to a new PC.

I've eliminated as causes the power supply and the AC cord. Because sideways pressure on the switch assembly can cause the problem, I assume I need to replace the switch. The faulty power switch is HP Part # 5187-2439 and includes a plunger microswitch, 2 LEDs, 12" cable and motherboard connector. The power switch assembly doesn't seem to be available from HP or third-party sources after 8-9 years -- big surprise!

The FixYa suggested solution with 2x5 motherboard pinouts is the beginning of a solution to my specific problem. Those pinouts do match the pinouts for my switch assembly. If generic power switch assemblies matching this pinout had been available, replacing the assembly would have solved my problem.

SOLVED by replacing a noisy power-on/off pushbutton. Of course, you should observe all typical precautions to avoid electric shock to yourself or static discharge to PC internal circuit elements. Wearing a grounded wrist strap and touching the chassis metal to a grounded lead will help with this.

To start, you must remove the "bezel" (front panel) from the chassis after removing both side panels. Instructions for doing this are embossed on the plastic mounting flanges, and you can also access online instructions at the HP site. There's a small (about 1" by 2") plastic housing for the power switch, power-on LED, and disk-access LED, that you pop out from the chassis, making the switch contents accessible.

For convenience, I unplugged the 2-by-5 plug from the motherboard and worked on the switch assembly outside the chassis. To thread the plug and cabling out of the chassis requires removing the hard drive from its mounting bracket (no screws) and the mounting bracket itself (two screws). You may be able to do the repair without this step.

Then I verified with an ohmmeter that the original pushbutton was a single-pole, single-throw, normally open (SPST, NO) momentary switch, which closes the contact only as long as it is pushed in. It really had to be that type, considering that the switch has just two wires coming off it, and that depressing and holding the pushbutton has a different function from depressing and immediately releasing it. Checking with an ohmmeter also allowed me to verify that the switch was noisy (it intermittently closed when the plunger or housing was laterally stressed). These intermittent closures were causing the spurious hibernate events.

I bought an inexpensive replacement switch of the same type (in mini-pushbutton size, part 275-1547) at the local Radio Shack. As of today (6/16/2012) it is listed online at "". Although the online site says it is rated at 0.5 A, the package says 3.0 A at 125 V. Any other similar switch would do as well.

In my HP model (HP Pavilion a220n), the pushbutton lives in a square hole in the 1" by 2" switch/LED mounting piece mentioned above. It is easily poked out with a pointed soldering tool or nut pick. I unsoldered the red/black wire pair and soldered them to the new switch. The small size of the mini-pushbutton allowed it to fit partway through the 1" by 2" switch/LED mounting piece. That allowed me to remount the front panel to the chassis (minus the round power-on/off cap with the power logo on it -- which was broken in my case anyway), leaving the pushbutton available for use.

on Jun 17, 2012 | HP PC Desktops

1 Answer

Hi,since this morning my desktop icone are all white and all the operating system components are compressed (showing winzip fornmat) i tried to restore but in vain how can i solve this probleme plz help me

you computer is infected with a virus . restart your F8 key while option SAFE MODE...when the PC starts in safe mode...scan your system with any good antivirus

May 07, 2011 | HP Compaq 500B 260GHz Intel Pentium E5300...

1 Answer

Hi, I bought a new PC desktop Acer Aspire Vista, but from the start I had a problem with this machine. It worked properly for about one week then it starts to freeze. When I try to switch it off, or...

Honestly, it could be almost anything. It takes a few software tests in order to see if it is in fact hardware related.

I would recommend some tests.

And although it's not free, PC Toolses, pop out the memory and make sure it's set right etc.s Registry Mechanic

Chances are this could fix a variety of things.

More than likely hardware related but if you upgraded to Win 7 without formatting, something could still exist on the hard drive causing this.

If all else fails, open the ca

Mar 02, 2011 | Acer Aspire AM5621-EQ9300A (PT.SB50X.004)...

1 Answer


Just install your driver cd companion with your laptop , you will find there a audio driver. install that cd and restart your computer, you will found that now audio problen is solved.

Sep 23, 2009 | Sony VAIO V300G Desktop and Free wireless...

1 Answer

Casio - tk 7000 FE rr 26

Hai, Major board problem. Usually requires a dealer to send the board in to the factory for repair. If you didn't have your program backed up you will have lost it.Can be costly.

Aug 07, 2009 | Casio TK 6000L Cash Register

1 Answer

My cmputer had the sound ok,but after our IT technician serviced it sound was gone.He didnt remove any hardware from the computer.He tried in vain to bring sound back to no avail.When you check it says (no...

Please go to Control Panel -> Sounds and Audio Devices -> Select 'Audio' -> Set Sound Playback Default Device to the 'sound card' name (sound card may be built-in or add-on).

Jun 23, 2009 | HP Compaq dx2200 PC Desktop

1 Answer

Computer boots up and after a short period, the monitor loses connection. Fan stops on CPU but power light remains on green on chassis.

Hi, My name is Alex and im here to help with your problem

It sounds to me like the power supply needs changing as enough power is not going around the whole motherboard. They are cheap to buy but if you're not sure how to install them, then please geta a trained computer technician to do it.

I hope this solves your problem. Any questions please feel free to ask me.

Oct 12, 2008 | PC Desktops

1 Answer

Power button mulfunction?

Most front covers have screws that hold them to the chassis. Unscrew the screws and be careful not to break any wire connections to your front panel. Then you'll be able to examine the power switch.

Sep 22, 2007 | Dell Dimension 8300 PC Desktop

Not finding what you are looking for?
Dell Dimension 4600 PC Desktop Logo

Related Topics:

208 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell PC Desktops Experts


Level 3 Expert

5660 Answers


Level 3 Expert

18258 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Are you a Dell PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides