Question about HP Compaq nc6000 Notebook

2 Answers

Boot problems blank screen, no beeps


I have read a lot of post regarding the HP NC6000, theres is talk about bad capacitators(presumably in the powersupply), does anyone have specific info on which caps to change. (ref num or pics)

no boot, blank screen, no beeps
striped dvd/hd/mem/keyb/battery etc doesn´t change behavior,
checked with alternate supply, no change

thx in advance

Posted by on

  • piedes Apr 29, 2008

    Hi "Coldcut"

    Sorry my msg could be misread, i meant on the motherboard off course. Im quite skilled in SMD soldering so that part shouldn´t be a problem, and the tools are available too :-)
    Now i just need to find some replacement capacitors, any idea to the value on these capacitors? apparantly there is no standards on how to marks these. (220 e42, positive end marked "+")

    A replacement board could be a solution. Many ebay traders unfortunatly does not want to ship outside US (im in Europe) :-/



2 Answers

This is how you solve the boot and beep problem with HP laptops:

PROBLEM: laptop doesn't boot, gives a long beep and two short beeps and leaves you with a black screen.
=> Your BIOS might be damaged, so we have to flash it.

Switch the laptop on and just leave it on when the beeps occured. The laptop will switch off automatically. If not, just switch it off after a few minutes. Now switch it on again and look if it boots. If not, try again.

You can also try to remove the battery while turned on. This is a soft reset. Re-insert the battery after 5 minutes.

There are a few more tricks, just Google them.

You're back in Windows so _back-up_ all important data to an external storage device! Now flash the BIOS. If you have a notebook with Intel processor use this link:


- Hardware reset: remove any cables (power!!, usb,...) AND your battery and push in the power button for 30 seconds. This will discharge the notebook.
- Remove and re-insert the memory modules.

If this doesn't work for you, sent your laptop to HP. Repairing your laptop will (according to HP) take 15-20 days when spare parts are in stock.

Mail me for any further questions: bart.thijssen[at]icehat[dot]be

- Bart Thijssen

Posted on Jul 24, 2008

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No in he power supply , but on the motherboards power regulation area,
you have to be real good at soldering 4 layer board and have the right tools . its not an easy job even if your skilled,
one bit of heat too much and you fry the board.
there are techniques to this that you can only learn by doing.
the caps are apparent if you are a tech.
the most you should attempt is to just purchase a replacement board.
I see these board available on ebay for 40.00 including shipping.

Posted on Apr 29, 2008

  • Karl Whisenand
    Karl Whisenand Apr 29, 2008

    I don't think anyone has any pics or specific info on these caps.
    but if you look at the board the large caps are normally the ones in question they will reside in the areas of the large transistors/regulators and coils , they are sprinkled in a couple of areas usually.
    and there is a shipping service in Florida that will purchase and or re-ship to you using your credit card.
    the shipping to you can eat your lunch to expedite it.
    you need a friend over here to buy and ship it to you,
    both have to trust each other because of the paypal chargeback issues, it can take a month to get the item sometimes due to customs and taking the cheap postal route.


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