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  Compaq Presario F500 has repeated problems turning on 
 
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Daniel Parker Dec 10, 2008, 10:15am EST Reply - Quote - Report Abuse
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My Compaq Presario F500 works, but has some strange problems turning on and waking up from sleeping.

I've looked over this thread, which might have something relevant, but my problem is different and if someone who knows can tell me what might be wrong, that would be great.

When I restart the computer, or shut down and turn it back on, the computer very consistently goes through a cycle of rebooting itself without ever turning the screen on. It takes about 20 seconds between power-cycles. To get the laptop out of the loop, it usually works to hold down the power button for 4 seconds to force a power-down, then turn it back on after a couple seconds. Only once in a while does this not work.

When the computer goes to sleep, and tries to wake up, it seems to be waking up, but the screen doesn't come on. This uses an integrated NVidia GeForce Go 6100, I [re?]installed the latest driver that the auto-magic detection on HP's website decided to install (NVidia's autodetect tool directed me there); and I went into the bios and increased the memory for the integrated video from 32 to 64.

Any idea what might be causing this? Have any idea if the turning on problem is related to the waking up problem?


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Rolebama Dec 13, 2008, 09:31am EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Assuming you are running from the AC adaptor, I would suspect the power connection on the motherboard. Compaqs are very prone to dry solder joints causing high resistance. I would guess that you are not getting the extra power to fire up your screen when coming out of hibernation, or to spin up your hard drive when booting. Your battery could be fully charged or flat depending on extent of dry solder joint.

Daniel Parker Dec 13, 2008, 09:43am EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Thank you, Rolebama. I'll keep that in consideration.

One thing strikes me as odd though, if that be the cause: The laptop goes through a repeated cycle of rebooting every 20 seconds - understandable; but when I hold down the power button to turn it off, then turn it back on, it almost always boots fine at that point. Is there a way this also fits the cause you suggested?

jason schofield Mar 01, 2009, 02:59am EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Hi,

Im having the exact same problems with my compaq presario F500. Did you ever find a solution to this? If not, has the problem worsened at all, are you still able to get it going eventually? Wondering what my best option would be, if its going to be possible to fix or if Im looking at a new computer.

Thanks Jason

Suspended User Mar 01, 2009, 01:53pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Hi guys,

Sad to say this is a common problem with the F500. To remedy this we are replacing motherboards on all customers F500s. If you browse Hewlett Packard's website, you can find a Service Enhancement warranty for this issue and get a motherboard replacement for free.

rocky fierro Jan 05, 2010, 08:05pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
i was just told that the Service Enhancement...that is the special enhancement that allows the laptop purchased to actually work, had run out and that it would cost about 400 dollars to have the motherboard replaced, i wouldn't be charged shipping and handling of course.

any suggestions for this splendid paper weight?

dino da ros Jun 01, 2010, 05:36pm EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
brought the motherboard at a service center is the video processor
welded with the changes in temperature will create fractures in
welds NVIDIA

Matthew - Oct 07, 2010, 01:58am EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Arent Elegible
Free Solution

First Take Battery And Power Pack Out
then blow warm air into vents
put battery but not power in
turn on wrap in towel and leave for 45 minutes
open up lid and plug power back in
done!
i was shocked when this worked For me :)

Ron Willis Dec 02, 2010, 02:05pm EST Reply - Quote - Report Abuse
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Edited: Dec 02, 2010, 02:06pm EST

 
>> Re: Compaq Presario F500 has repeated problems turning on
Working on a friends F500 and it has the same problem ... it's got to the point it won't boot at all. It does try to run a startup CD like puppy linux or win xp but no screen and sometime around 20 seconds it reboots and does this over and over. I've removed the hard drive, ram, keyboard, web cam board, and anything unplugable without unplugging the screen but it doesn't make any difference. The $400 motherboard is out of the question and trying to remove pieces to get to it is a nightmare ... there is one screw holding the mother board to the top cover that is not accessable ... makes me want to yank it apart then chunk the whole thing off a bridge :(

john albrich Dec 02, 2010, 03:13pm EST Reply - Quote - Report Abuse
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Edited: Dec 02, 2010, 03:16pm EST

 
>> Re: Compaq Presario F500 has repeated problems turning on

Welcome to HWA, Ron.

It will require at least some working RAM to even POST (power-on-self-test).

IF the computer does NOT have any built-in non-removable RAM, then at least one RAM card has to be installed.

IF it DOES have built-in RAM, then remove the RAM cards for now.

Whatever minimum RAM is installed, the RAM has to be working right to get through POST. If it does have built-in RAM and it's defective, you may be unable to POST and the display likely will remain in its default power-on state (usually blank).

You can remove other things (hard drive, extra memory card(s), etc) and it can still boot, but without some minimum working RAM, it's a non-starter.

I'm not saying you have defective RAM...I'm just indicating what's needed for minimum functionality for POST.

A similar situation exists IF the computer has a video card. If the computer REQUIRES the video card, the card must be properly seated and it must be functional or the computer may not POST. If the computer has integrated video AND a video card is OPTIONAL but installed, then remove the video card and use only the integrated video. I'm speaking generically here as I'm unfamiliar with the F500.



If the computer has a video port, something else you might try, is (with minimum RAM installed) try booting with an external display attached...see if that makes any difference at all. I'm not expecting it to, but it's worth trying.


edit to add:
Be sure to use appropriate ESD handling procedures, and make sure the AC power AND the battery are removed whenever you install/uninstall hardware.

Ron Willis Dec 02, 2010, 03:27pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Thanks for the detailed info! I,ve tried with one ram stick then two, external monitor and many other combinations. Each try I get the same reboot over and over :(

john albrich Dec 02, 2010, 04:20pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on

If it has a CMOS Settings reset capability (sometimes called BIOS resetting or clearing), then you might also try that. In some cases when the settings are corrupted due to a fault it can prevent POST. The reset capability may take the form of a few jumper pins, or a couple of pads on the circuit board, or even removing the motherboard battery (sometimes a "coin" cell) for some period of time (which can vary from laptop to laptop).

If you don't have it yet, try locating the user and/or service manual from HP's support site. There appears to a PDF copy of the service manual at:
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex...Id=3316438

Ron Willis Dec 03, 2010, 10:47am EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Thank you for the suggestions and I have tried them all with no success. I have decided to go with this http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1805802...:MESELX:IT

john albrich Dec 03, 2010, 02:31pm EST Reply - Quote - Report Abuse
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Edited: Dec 03, 2010, 02:37pm EST

 
>> Re: Compaq Presario F500 has repeated problems turning on
Best of luck to you. That price seems pretty reasonable, and if they can fix it for that price, let's hope it is indeed the motherboard that is the problem.

I would check out the power adapter's ability to provide stable voltage under load before sending it in myself, but that does take some equipment and skills you may not have time to develop.

Although, you might be able to borrow another Fxxx series adapter to do a quick check. Or, if the power adapter's connector is "standard" you might be able to use another brand's adapter as long as it provides the same polarity and the same or greater power capabilities.

I can understand the desire to just get it fixed.

Let us know how using the company works out.

rich kingston Jan 14, 2011, 08:06pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
go to nvidia settlement web page there was a class action suit your model was affected and you can fill a claim for replacement

rich kingston Jan 14, 2011, 08:07pm EST Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on

frank hernandez sr Mar 18, 2011, 12:31am EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on

frank hernandez sr Mar 18, 2011, 01:26am EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on

thank you for the info. i did as you said and check on the replacement to the motherboard and guess what? it was only for a temp time and as usually i am late and donít get the prize. i was reading one other that applied for the replacement and he was late by one month. they should make it a law that the computer companies send notice recalls just like the auto industry does to all who are at least register to the company an email should be sent or letter if they don't have email. i have had hp for many years but like the other gent i will not buy another hp. oh! by the apple had the same problem with their laptops and i know this by my friend next door who took his laptop to apple to be check out and the told him it was his motherboard and it would cost him $400-600 to replace it. and never mention the recall that apple had for free replacement. it was not until later we went looking for a fix and found out just like i did tonight about the recall, we shoot back to apple to the same person and ask about the recall with the print out and he said i will have to look up the model number to find out if you qualify for it. he could have done it the first time knowing it was the bad motherboard just so he can make his commission on the repair. i will not go back to that store if i ever need my apple repaired i will drive clear across town. now i am stuck with an hp laptop that is a year and half old still looking brand new.

david mcquoid Jun 06, 2012, 09:21am EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
hi
i have had the same prob with the same comp and all i did was just left it on all the time and eventually the thing booted up normally after 2 days so all i have to say is plug it in and turn it on and check it every hour or so and eventually it should go so don't give up mine is over 3 years old and still going

nat neho Jun 29, 2012, 09:58pm EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
I had it working after the "towel effect" then the boot screen came up so i hit enter to repair...got as far as a blank blue screen :(

Fred Clark Aug 10, 2012, 01:37am EDT Reply - Quote - Report Abuse
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>> Re: Compaq Presario F500 has repeated problems turning on
Success!!

Thank you to all the posters for your ideas. My mother's F500 would not turn on and was cycling through a re-boot every 20 seconds as reported by others.

I closed the lid and flipped it upside down. I took out the battery and unplugged the AC. I held down the Power button for more than 20 seconds. I don't know if this did anything special.

I tapped with my knuckles around the vents, the fan area and the other areas (I guess there are motherboards, etc inside these screw-in lid sections), to try and dislodge any dust or if anything had got stuck. I don't know if this helped.

Then I got a blow dryer and blew out the vents and blew into the vents around the fan for about a minute. Hot air. The area around the fan was hot to the touch after this. I don't know if this really helped.

Then I flipped it back over, plugged in the AC and it booted up, with the screen receiving power again for the first time in hundreds of re-boots. The battery is still not in. I'll put it in now. I saved all my Mum's stuff onto a Flash Drive. All good right now. Fingers crossed.


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