Question about HP Compaq Presario F730US Notebook

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Presario F700 ... Wont boot up, Turns on & then off ... That's it ... Anybody got any ideas on why it does it ...

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  • Josh Scott
    Josh Scott Jun 27, 2009

    Right away, As soon as the power light shows it shuts down. Every now & then it will boot up. But once you power it down or have to reboot it starts doing it again.

  • Josh Scott
    Josh Scott Jun 27, 2009

    The fan always kicks on. I have tried replacing the ram too. Dont have anything to check the CPU itself. But it wont even boot up to bios, so i can not get into safe mode. I am running out of ideas here ... :( ...

  • Josh Scott
    Josh Scott Jun 27, 2009

    I can not even get it to boot up now ... I tore it back down to the mother board again. It has the power supply & the cpu, fan & ram ... It should load up to at least bios & it still does not load up. Since it will not load, how would i check the power or the temp ? ... The fan is working. I have IM if anybody would like to chat with me that way also, Just let me know & i will log in & post my ID ... Thank you for your help ...

  • Josh Scott
    Josh Scott Jun 27, 2009

    That is what i was doing, I got the Fan, CPU, Power, Mother Board & External Screen hooked up & still not able to power up. I unhooked everything else already.

  • Josh Scott
    Josh Scott Jun 27, 2009

    i know alot about computer & all but i not sure how to check the bus or cmos. Could you please tell me how to do that since i can not boot up at all to check anything ??

    Thank you for your help


  • Josh Scott
    Josh Scott Jun 27, 2009

    Ok, I tried it ... Still doing the same thing. It looks like i might be out of luck on this one ... Never had a computer / laptop that i could not fix. Guess there is a 1st time for everything ...

    Thank you for your help.


  • Josh Scott
    Josh Scott Jun 27, 2009

    Thank you again

  • Tharinda
    Tharinda May 11, 2010

    It might be due to a RAM or processor/fan failure or due to a OS failure caused by recent software or a driver or a Virus. Check your OS first. Go to bios and check the Temperature. Before the machine start windows, when u just started, press F8 and go to safe mode. If u can access windows , means if u are able to boot from the safemode, that means you have a service or a driver failure. Right Click on My Computer Icon and get manage. From there, go to device manager first. And check whether there are any issues with those devices. If there is any failure, that will be indicated in a yellow question mark or a red X. Then click on Event Viewer Check for System and Application events (and security events if u have set policies to shut down the PC if security checks fail or logs are full. Remove any newly installed software and updates. If this is helpful to you please kindly rate the answer. Have a goo day. Thanks :) Hope this would help

  • Jorge Majano May 11, 2010

    how long till it turns off?

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Had the same problem. In my situation it was related to the Graphics processor. Remove the memory access cover and apply firm pressure on the corner of the simm socket and see if it starts / boots. Also try downward pressure from the top side left of the touchpad. If it works then you need to put a shim on top of the GPU chip (between the plastic base and the GPU). I used an old rubber foot from an old case. Reassembled... so far so good. Note: if you look at the GPU you'll see that it's glued in addition to being soldered. A manufacturing "fix"... obviously a known problem.

Posted on Sep 07, 2009

  • chrisper67 Oct 01, 2010

    I agree... had the same issue with my f700. The GPU had to be soldered. Seems to be working fine now. Only time will tell. Checked with the guy I had fix it and he said it is a common problem with Compaq laptops. Don't know if it is from the heat from the battery, but it gets extremely hot when used continuously.

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My daughters F700 was working OK and the next time she went to wake it up it wouldn't boot!
The HD light would flash once and I'd hear it grunt twice. The fan would start and almost immediately stop. The screen was absolutely BLACK.
I tried all of the remove the battery and power adapter hold down the power button tricks to no avail. Including taking out the RAM and also disco the BIOS battery.
Nothing worked. What saved me was a comment by one responder, that he just left it on. The trick is to get it to stay on. I did by putting a restore disk in and it seemd to stay powered up.
I went away for about 20 minutes or so and was sitting at my desktop and heard things happening with the laptop.
When I checked I found it still with a black screen, but the fan was now running constantly. I took out the startup disk and tried doing a keyboard reboot. NO DICE!
I then held the power switch until the laptop shut down. I waited a respectable 3 to 4 seconds and powered it up. Lo and behold there was the BIOS setup screen. I hit F1 to proceed and was sent to the SAFE MODE select screen. I chose Normal Startup and the laptop booted up and worked.
I chose to go into the control panel and disable sleep mode for both battery and powered modes. Naturally I will never select sleep or hibernate when I shut down either.
The trouble with this situation is for all intents and purposes, you would consider trashing the computer.
Hope this helps. JOHNNYBOY

Posted on Dec 01, 2009

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I've got the same laptop, with the same experience and so have numerous others on the web. I've resigned that the only possible solution is to replace the motherboard, and I've waited about five months hoping that HP will offer extended warranty on this product.
Hasn't happened yet to my knowledge, and ordering a MB from Hong Kong will cost me about $200. Which may not even be a long term solution, if there is something about the laptop causing the problem that will fry the new MB. So my only recourse may be to boycott HP and steer anyone I can away from them.

Posted on Jul 14, 2009

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Mmm then the most possible problems would be either the system is unable to load data from cmos or a power problem. Did u check the heat of the CPU. Does it get enough power? did u check the power device? That has to be done first. As I feel its related to non other than the power unit or the switch circuite. And there may be a leakage. Check the switch whether it gets clicked twice. Or some thing similar to that signal.
Check the speed of the fan (when its started).
Check it and comment again.
:)
Let's solve this sonner.

Posted on Jun 27, 2009

  • 4 more comments 
  • Tharinda
    Tharinda Jun 27, 2009

    It might be a problem with *********** board CMOS chip which is unable to load the hardware settings.
    Check whether there is any jumper shorts.
    Connect a device by device and check when the system fails.
    You can tell ur IM, we are not allowed to provide any info :)


  • Tharinda
    Tharinda Jun 27, 2009

    Seems u hv to check the mother board. bus and cmos.

  • Tharinda
    Tharinda Jun 27, 2009

    Yes a difficult question to answer. U have to have tools to check cmos and bios. We can not check busses. One thing I forgot to mention. Did u also check ur vga? Sometimes on-board vgas also gives a similar trouble. I think U have to go to a hardware service provider to check ur cmos. Did u check the battery also. Boot without the cmos battery. Make sure that YOU HAVE NO JUMPER SHORT AT THE STARTING SWITCH CONNECTORS (which will be connected to the start button). What u have to do is remove the wire connecters to it and start the machine by shorting the circuite. Most of the time there will be three pairs or fourre pairs of connectors to connetc start switch and reset switch together with the indicators.
    Try to boot like that.
    :)


  • Tharinda
    Tharinda Jun 27, 2009

    :( I feel so sad for u Sir. But what to do. Those are machines. Try to go to a hardware service provider and check ur motherboard.
    Its a pleasure to help u. Wish U luck.
    TC :)


  • Tharinda
    Tharinda Jun 27, 2009

    Ur most welcome Sir

  • jangdavis Sep 14, 2010

    •LASITHA-VEGA : Connect a device by device and check when the system fails
    --can you tell me what kind of devices ? and any orderly sequences ?

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You need to print this out-on someone else's computer. Hope it works for you!
Remove the battery and charger/ac adapter/power cord from your Compaq Presario F700 laptop, press and hold the power button for 20 seconds to discharge any residual current inside the Compaq Presario F700 . This clears your RAM and is like a hardware reset. Replace the battery and charger/ac adapter/power cord and turn your Compaq Presario F700 laptop on.

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Uninstall unnecessary programs and applications.

Scan with a antivirus program

Scan with a spyware/malware program

DEFRAG C:

CHKDSK C:

Clean up and repair registry problems with registry repair software of your choice

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