M65-s9092 won't boot, shuts off immediately after start

Hi,

I have a Toshiba Satellite M60, which has the exactly same problem as yours.

when I use battery to start, fan is running for a few seconds and then stop, nothing with power on, if use power directly, fan does not work, no power to notebook.

There are potentail problems on motherboard, CPU and Memory, can cause this problem, but usually CPU is ok and I checked Memory is good. So I doubt if this problem coming from Power button board, but I am not very sure. otherwise, the problem must coming from motherboard and that is very bad.

Can anyone here to help to locate the problem?

Thanks,

I have an S9092, also with the exact same symptoms. I have changed the motherboard and the machine now stays on, the hard drive spins, but nothing on the screen.
I then changed the video card, no change.
I hope to have another machine with a screen problem within a couple of weeks, I'll report what I find.

I also have a Toshiba M60 with the identical situation as explained in the first post. When you press the power button - the button illuminates for maybe 3 seconds and then goes out - no response from machine. If I try to start the machine with battery power, the button light will illuminate and the fan will activate for 3 seconds and then both cease. One thing I noticed was that when I remove the AC adapter - the battery lamp does not illuminate, it used to do this.(yes, the battery is fully charged).
So, I took it to an authorized repair shop - they said it needs a new system board. OK great, waited 4 months for it to arrive. When I went to pick up the machine, it was plugged in and I could see that the display screen was active and everything looked normal. Because I had a relacement machine, I figured that I would turn on the Toshiba when I got an external hard drive so I could back up the data, I was still suspicious, you know things may not be the same after they are worked on. Well, It has sat for 5 weeks on a shelf and today I set it up on the table. I pressed the power button and you wouldn't believe. The same behavior as before I took it into the shop!! My head is spinning! new board(380.00), never used since service, and the problem is back. Totally odd.
Has anyone got any new clues??? I called my repair shop and I am bringing it back - he says he'll find a way to still keep it under the 30 day repair warranty -
Totally freaked out in Chicago,
Any thoughts????
Thanks!!!

symptoms follow the pattern of a bad mobo. i recommend first just wait and see from ur repair shop

cheers ...

Thanks for the response, I'm taking it in tomorrow -
if it's anything like the first time - it's going to be a while.
I'll keep you posted
Have a great day!!!!!

Gents; Toshiba units have an overheat protect circuit that will shut down your unit very quickly. I have become very familar with the A65 and A75 versions and two units I purchased that had this problem were fixed by cleaning the air passage in the CPU cooling path. You cannot see the problem externally.

The fans that cool the laptop must be removed to see the outlet passage.
On an A65 unit is is very easy, A75 requires a major disassembly.

Now the worst case with obstructed air passages is that you may damage the overheat protection circuit and it's failure mode is an immediate turn off.

Hope all of you are not using this item in your lap. Should be on a hard surface to allow the fans to pull in air without difficulty.

My problem turned ot to be M/B and bad video card. I was sent a bad M/B (twice) from eBay. Exchange boards are availble here for $276.

http://www.sparepartswarehouse.com/T...000030100.aspx

i have a m65-s9092 and it wouldnt start when i tryed to fire it up. I took it apart and look for something that might stand out to no avail. So i stuck in front of a heater bottom side to the heater for about ten minutes and started trying to fire it up and it started. it does fine restarting but if i shut it down and it cools off it wont start without a good warming with a hair dryer..Just something to think about

I think these motherboards have some inherent design flaw. I have had the same problem as Varlesi. The new motherboard from Toshiba lasted exactly one day and failed. It's the last time I buy a Toshiba.

i would keep on nagging toshiba until u get another model as replacement.

All laptop manufacturers have one time or another (and still) got hit with a bad model design. It is frustrating and pure unluck!

cheers ...

Hi,
we have found a solution for the mentioned problems. On the mobo, there are 4 capacitors (large smd) which have after a while a too high leakage current which causes the voltage regulator to switch off. This applies to M60 and M65 models. If you replace those 4 capacitors you may switch on with and w/o AC adapter and also w/o heating up before switching on.
Simple soldering work and ~ 2$ material + dis- / assembly.

cheers,
olli

just wondering if you might post a picture of the mobo with which capacitorors to change???? Thanx

I also have a Toshiba M65 that is failing in exactly the same way. I just talked to Toshiba and was told that "they have had problems with that motherboard". Ofcourse, they also take no responsibility for selling a defective product. Basically, I am out $1000 for buying their crap. When are people going to wake up and do something about these thieves. Isn't there a attorney out there that got screwed too? It's time for customers to unite and file class action suits to get some justice. Count me in!

well olli_berlin is right!! I had to order the new capacitors out of the U.K. and i had to order 10 of them that was $30 and i had a friend solder the new ones in for $25 so i got $55 in fixin this one verses buyin a new mobo for $400.....but it fires up just fine now , Thanx olli_berlin!!!!!

And thanx to this website!!!!

any pictures of which caps they were? there are dozens of caps on a motherboard...

Anybody got the capacitance value, voltage and dimensions of these caps?

Hi,

470uF, use low-ESR-types instead, if you can get them, better avoid Chinese manufacturers. Should be 25 volts or above.
There are 4 caps in a row, easy to identify.
Also it turned out that sometimes due to rotten caps the ISL6227 (power controller) died; so if the problems remain after cap exchange, try to change that part too.

cheers,
olli