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Laptop Power Up Problems

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  • Motherboards
Last response: in Motherboards
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November 27, 2013 2:44:08 AM

Toshiba Satellite L305D S5869. 4 GIG Memory, 110 Gig Hard drive, AMD Dual Core QL-60 1.9 GHZ, Windows Vista Business SP2.

Recently I began experiencing problems with occasionally not being able to power up this laptop regardless of whether there's a battery inserted or just the power supply is connected. Sometimes I have to press the power button on and off 3 to 5 times before it will POST and boot.

Everytime I press the power button the power indicator light lights up green, the fan comes on and I can hear the optical drive start up but sometimes nothing else happens; no Toshiba splash screen, no BIOS load and no Windows boot. If I keep turning the system off and back on, I eventually can get the laptop to power up. Once it does boot, I do not notice any unusual behavior.

To resolve this problem I've already tried:

1. The hard reset....remove battery, disconnect power supply, hold down power button for 30 seconds. Doesn't do anything different.

2. Attaching an external monitor to verify LCD display working or not. External display shows "no signal" when laptop doesn't power up.

3. Re-seated the hard drive and the memory sticks. No difference after reseating.

4. Ran a memtest utility. Mem test passed. No errors.

5. Ran a hard drive check. Used Seatools for Windows, short drive self test and short drive generic test both passed.

6. Defaulted BIOS settings. Made no difference

7. Checked power supply voltage with a multi meter (19.6 volts).

8. Ran check disk. Found 1 bad cluster in hiberfil.sys file which was repaired. FYI...I never use Hibernation mode and after the file was repaired the laptop still exhibits the same occasional symptoms.


Looking for the next step in troubleshooting. Is the mobo dying? Could it be the power button itself? CPU maybe? Please help if you can.

Thx

More about : laptop power problems

a b V Motherboard
November 27, 2013 3:04:04 AM

My sis had a Toshiba did the same thing bout 3 yrs old turn out her motherboard was dying after buy a new battery new charger and all that money it died so that's where I am thinking its happening have you done a complete format and reinstalled anything?
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a b V Motherboard
November 27, 2013 3:07:15 AM

probably a voltage requlator on the motherboard is defect and no power is going to the gpu thats why you have no signal on output.
defevtive motherboard.
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a b V Motherboard
November 27, 2013 3:16:47 AM

I also Had a Toshiba as well a year ago or so it died black screen sent it back under warranty and they said it was a bad motherboard so I started to install everything thinking it was fine froze 2 hours into restore..... I pulled the hard drive and got a new one after I check it on my home pc turn out bad replace with new ran smooth. So I sold it seems like the Toshibas don't last very long.
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November 27, 2013 3:25:08 AM

johnnyb105 said:
My sis had a Toshiba did the same thing bout 3 yrs old turn out her motherboard was dying after buy a new battery new charger and all that money it died so that's where I am thinking its happening have you done a complete format and reinstalled anything?


JOHNN93 said:
probably a voltage requlator on the motherboard is defect and no power is going to the gpu thats why you have no signal on output.
defevtive motherboard.


So can this voltage regulator your talking about work occasionally because when it does boot up everything is normal

As far as the hard drive goes, I haven't re-formatted it. I haven't added any new hardware or software either. I did run a hdd utility and chkdsk and both say the hdd is ok. If I pull the hdd, the laptop will still ranadomly not post or boot. If it does boot up and I've got the hdd pulled out I get the "no bootable device message"
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a b V Motherboard
November 27, 2013 3:33:42 AM

Ya as the above op said its probably going out its just a matter of time before it dies and then it wont boot...
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November 27, 2013 3:38:38 AM

johnnyb105 said:
Ya as the above op said its probably going out its just a matter of time before it dies and then it wont boot...


Thx...I thought that might be the case.
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a b V Motherboard
November 27, 2013 3:51:44 AM

Your welcome.
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a b V Motherboard
November 27, 2013 3:57:50 AM

comonents usualy work or dont work. i did not see whre you said ocasionaly.this might not be a bad component but a cold solder of a component.and as the time passes it might get worse due to corosion.
to be shure shake the computer when not working or give it a bang.if the problem gets solver temporarily buy this method it is defenetly a cold solder.
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a b V Motherboard
November 27, 2013 4:03:34 AM

I don't know if I would put that kind of force on that while the hard drive is in the unit could damage it .....
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a b V Motherboard
November 28, 2013 1:04:29 AM

johnnyb105 said:
I don't know if I would put that kind of force on that while the hard drive is in the unit could damage it .....


the hard drive is shock proof to a point.if it is not powered on there is no problem at a reasonable point.a little tap not to pass your fist thgough it.
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December 4, 2013 5:55:22 AM

Just a quick update. This laptop now no longer powers up at all. I'm assuming that whatever was failing has finally failed for good be it a cold solder joint, the gpu or something else so I'm gonna replace the mobo and see what happens after that.
-thx
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a b V Motherboard
December 5, 2013 11:33:59 PM

just buy a new laptop it will be better faster and will cost you as much as a motherboard.and thats if you find a motherboard.
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December 6, 2013 7:21:48 AM

JOHNN93 said:
just buy a new laptop it will be better faster and will cost you as much as a motherboard.and thats if you find a motherboard.


Well I can't afford a new laptop so I purchased a used mobo on ebay that has a 30 day warranty for 63 bucks; also I'm the curious type and have been looking for an excuse to open up a laptop so now I've got one!

I installed the used mobo yesterday and so far so good! We'll see how long it lasts!
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