Question about Compaq Presario 700 470024-192 Notebook

1 Answer

Compaq presario 700 can only be turned on 6-7hrs after shut down?

Few weeks ago I posted a problem with a presario 700 that it would not power up. As time went by and i did several trouble shooting and i did not figure out what was going on. What i noticed is that the power light will come on only 6-7 hours after I shut down the computer. Then I would start it work regularly even try restart mode all ok. The minute I shut it down it will take several hours again for the power light to come on and be able to power up the pc. I did get a new bios battery but still no change. The main battery of course is dead but even without it in the pc the 6-7 hour start up sequence occured. Any tips??

Posted by on

  • 2 more comments 
  • sxristi Dec 05, 2008

    Thank you for your input cosif. One more question. If the power system is burned up then why does it start up after 6-7 hours? it is strange. I do have a volt multi meter so i can check out your advice. do you know what specific i will measure? you said capacitors and coils around the power in the pc..

  • sxristi Dec 06, 2008

    I did look around and by chance i did find either a part cut off on one side on the motherbord near the charging lcd indicator. I am not sure what it is (it is silver cylindrical like a capacitor with the top flat circular section has on side painted a black chord and the reimaing part of the circle says 2 5 under 330 and under that 6A... is that a transistor??). I tried soldering it but there no way for me to do so. The holes were too little and I don't have the tools and the know how to solder something this small. However the pc did start 6 hours later as usual. Maybe this part would make it start normal...


  • sxristi Dec 08, 2008

    this is the part on top as you can see it has a black part and a written part 2 5 below 330 and below 6A.

    Here is another shot

    This part was near the power lcd of the presario laptop on the mother board top left corner and now it off the pc :( it fell off as i was putting the fan. It is hard to solder it because there are three tiny holes the that came off from the board with it ( green part :( )if you can see on the photo.

    Anyone knows what is this? a transistor?

    So now the pc powers up again after many hours and when i power it up it attempts to start up it goes through the boot up process for about 20 seconds and then just power cut off. any hints? is it this part or it could be something else i did when i took apart the board,


  • sxristi Dec 08, 2008

    thank you again. i did some securing with part and the computer started up again (the keyboard cable strip probably was not fully inserted or something like this) so now i got it to start again after 6-7 hours of charging. So the component you are telling me has to do with power source so maybe that is why i don't get power right away and it needs to waif for many hours. or maybe i see some shaking on the screen on the picture. anyhow soldering it will try but i think that the little holes cannot be soldered by me the pins of the "stabilizer" probably can because they are just like that of a capacitor even thicker. but the part that came loose on the part no way i can solder it there are three wholes . . . like these dots. :)

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 176 Answers

Wow !!!

open it and check the power system (in the laptop) check for damaged capacitors or any other components that look damaged. Also if any check the coils (i think thats the english name) to be undisrupted, because they have a huge role in starting some power systems ...

If u have any electrical mesurement device use it to find out where the problem might be ...

The BIOS has no relevance to the manifestation that u describe, so it is not the issue!

Posted on Dec 05, 2008

  • 2 more comments 
  • Cisf Dec 05, 2008

    some power systems (most modern ones) need an initial electrical power to power them selves up (i know it sounds stupid and impossibile but thats how it happenes). I am hoping that that is u;re problem also ... maybe the power system just takes an impossibe long time (7 hours !!!!) to get to the neaded initial value to start up ...

    u can try to move some fans of the computer by hand to create that initial impulse (works on desktops pc's!!!)

    anywhay even if this is not the case for u, cheching the components can not hurt, mayby is something as simple as an imperfect contact or a blown capacitor ...

    for the coils messure theyre resistance ... it's just a wire coiled up ... so it has to be unintrerupted (R different from 0)


  • Cisf Dec 07, 2008

    can u make a picture of the component ?!

    as for the soldering, u can try to attach a pin at the end of u're soldering device, so to have a fine hot end to be able to do the job... not the best thing to do but i think it will work :D


  • Cisf Dec 08, 2008

    i don't know what it is ! I also showed the pictures to a friend and he doesn't also. It can be anything ... a composed capacitor, a complex custom made component, a tiristor, a tension source ....

    the pictures are not that good, it u can take them again (check u;re micro macro settings on the camera) wold be grate ! Also show the back of the component...

    Anyway it sems as an important component so do try to solder it ! Try for example to solder some fine wires to the component and than to the motherboard, u can use a coil wire (it;s isolated so it doesnt matter if they tuch each other, and they are very thin so if there is a power surge, they will just breake and nothing bad will happen ...) ! just to see if it has any effect on the startup of the comp.



  • Cisf Dec 08, 2008

    my friend found out what it is! it's a stabilized source (power source)!!!

    so .... solder it ..

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What causes a laptop to beep and then shut down?


hi, this might help you
http://www.computerhope.com/beep.htm
the amount of beeps it makes should try and let you know what the fault is.
could be a few things though, check memory is common one take it out and put back in, hope this helps

Jun 17, 2012 | Compaq Presario 700 470024-192 Notebook

1 Answer

Compaq presario c700 laptop- unable to turn on laptop


U may have a dead board. They average $285 plus labor. A shop should be able to test it on a volt meter see if the power grid is burnt for around $35. then u will know what ur in for. If its a bad board just replace the laptop I wouldnt repair that problem on an older laptop.

Jun 24, 2010 | Compaq Presario 700 470024-192 Notebook

1 Answer

Compaq Presario F730US, Will not Power Up


Try to find a BIOS Update. To check that BIOS update is avaialble, visit http://www.compaq.com select your product and find the BIOS update in support or download section. It may solve the problem. (ehteshamhusain@gmail.com)

Jul 20, 2009 | HP Compaq Presario F500 F700 and G6000...

1 Answer

I have the same problem


could be a bad driver you have installed

Jul 17, 2009 | Compaq Presario-Notebook 700 Series, 2500...

1 Answer

COMPAQ CQ60-104Tu goes blank... improper shutdown


It might be a problem with the computer. I would advise going back to where you bought it and returning it to either get a new one or a different one. Glad I Helped!

Jan 28, 2009 | Compaq Presario Notebook

1 Answer

POWER PROBLEM


Is it out of battery charge? If so, plug the charger in to the computer and an outlet. You should be able to use the computer while it's charging. If thats not the problem, you should try shutting the whole computer down, and taking out the battery. Keep it out for a few moments then put it back in and start the machine up again. Have you dropped the computer at all? Or has it gotten wet? If so that is the cause.

Nov 12, 2007 | Compaq Presario 700 470024-192 Notebook

1 Answer

HP Compaq Presario V2000 "Doesn't turn ON"


1) Unplug the laptop. 2) Press and hold down the standby switch under the lid in the upper left hand side of the laptop while pressing down the power key. You should have full power startup now. Let me know if it worked..

Jan 27, 2007 | HP Compaq Presario V2000 Notebook

1 Answer

Compaq Presario 700 PC Notebook keyboard locking out


Check that your notebook power settings are correct, it may be that when you press off or shutdown it's actually going into hibernation or standby, this is only correct when you close the lid without shutting down through Windows. As for Windows Media Player, you cannot remove it as it's a Windows component, you can only dissable it through Add/Remove programmes>Add/Remove Windows Components.

Dec 17, 2006 | Compaq Presario 700 470024-192 Notebook

Not finding what you are looking for?
Compaq Presario 700 470024-192 Notebook Logo

148 people viewed this question

Ask a Question

Usually answered in minutes!

Top Compaq Computers & Internet Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18381 Answers

Abhinandan  Patil
Abhinandan Patil

Level 3 Expert

568 Answers

Are you a Compaq Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...