Question about Toshiba Tecra M4-S435 Tablet PC

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Hardrive won't run, screen is black

My Toshiba Tecra m4 is not starting up properly. It was working fine this morning, but now, when I turn it on, everything comes up except the hard drive. The screen is black, but the power, plug and battery lights are all lit. The only one that isn't is the hard drive one, and it isn't running at all. The fan runs, and it appears that everything else except the hard drive does. I don't get anything on the screen at all, it's just black, not even an error message. Also, I tried removing the battery and main power and left it like that for about a day. It's still not working...Any help at all would be appreciated!!!

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  • Expert
  • 64 Answers

Most possible one of your Toshiba Tecra m4 driver is not working properly, but don't worry give me a call at +1 (833) 493-0111 so that i can suggest you the right way to fix it!

Posted on Apr 13, 2017

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Posted on Jan 02, 2017

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SkinWill
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SOURCE: Soundcard driver for Toshiba Tecra M4-PTM40A Tablet.

The XP SP2 driver should work. http://www.csd.toshiba.com/cgi-bin/tais/su/su_sc_dtlViewDL.jsp?soid=980401&moid=893054&rpn=PTM42U&BV_SessionID=@@@@0801357951.1210987874@@@@&BV_EngineID=ccceadeedmeimgicgfkceghdgngdgmn.0&ct=DL&all_docs=false

Posted on May 17, 2008

ChipcircuiT
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SOURCE: boot password oremoval for toshiba tecra M4

reset the cmos battery in 30 minutes

Posted on Jan 04, 2009

  • 2 Answers

SOURCE: toshiba M400 tablet wont start

I've had this problem intermittently on my Toshiba M400, and it recently became bad enough that it was failing to start on most attempts, and crashing soon afterwards if I moved it. Prodding the heatsink to change its position may have helped, but this could have been due to chance. It also had a habit of resetting itself when leaning on the left side of the keyboard when typing, but not when using an external keyboard. It's always had occasional crashes under high CPU load, causing the machine to freeze and the fan to go up to maximum. BIOS updates improved this initially, but in recent months it got worse again, especially when using Virtual PC unless hardware virtualisation was disabled.

I've just stripped down the laptop using the guide suggested by thiscomputer at http://www.irisvista.com/tech/laptops/Toshiba-Portege-M400/take-apart-tablet-pc-1.htm (good find!). Many parts are more fragile than in a desktop PC, but otherwise if you're used to taking stuff apart it shouldn't be that big a deal. You'll need a normal and small crosshead screwdriver (jeweller's screwdriver set works fine) and space to lay out the screws in a pattern so you remember where they go - consider making notes.

I fixed two things that could have been a problem: Firstly, a fair amount of dust was blown away with a hairdryer and vacuumed from the heatsink. Secondly, the pink thermal grease that couples the CPU to the copper heat pipe appeared to have all squeezed off the CPU die and had accumulated around the sides, possibly due to the small freedom of movement in the heatsink being repeatedly shaken. The grease was still soft so could be scooped back onto the die with a flat-bladed screwdriver. I also bent the legs of the Y-shaped CPU-to-heatsink retaining clip so that there was a greater downward force on the CPU. I figured this would improve thermal contact, especially if the clip had naturally bent and come loose over time. Removing the CPU itself didn't show any damage, but might have improved the electrical contact when reinserted. Be careful when screwing the Y-shaped retainer back in - because of the springy nature of the legs, if the screwdriver slips the screw will fly across the room and you'll have to hunt for it :-) The other thing to note when reassembling is that the wi-fi on-off switch engages with the lug on the motherboard, if this is wrong you won't be able to move the switch and the actual state will be the opposite of the switch position.

Finally, after I reassembled it still refused to start. I noticed the DVD drive wasn't properly flush with the case, and on removing the DVD drive it started. Close inspection of the drive and laptop connectors revealed a small metal tab had come loose, and the laptop continued to work with this tab removed and the drive reinserted properly. I removed and swapped some memory modules while experimenting with the DVD drive which also had some effect - it's possible that an ill-fitting DVD drive bends the memory above it and affects the contact. It's entirely possible that this was the only problem to begin with, and that playing with the CPU made no difference, so maybe check this first! But whatever it was, happily my m400 seems to be operational again.


Posted on Apr 11, 2009

mimranon
  • 72 Answers

SOURCE: Toshiba M400 Battery 100% but when power disconnected shuts down

hi dear i dont think you can any test on this my addvice is take to toshiba service center ...

thnx

Posted on May 14, 2009

  • 1 Answer

SOURCE: My portege M400 wont start

I have the M400 and it also does this. I don't know much about computers, but I found out when you apply a little pressure to the left of the touchpad and beneath the keyboard as you're flipping on the power slider, it boots up much more often. I know... sounds crazy and stupid, but it works for mine and it's been doing it for almost a whole year now. It doesn't work everytime, but whenever the light flashes and the fan cranks up to a million RPM i just pull the battery out

Posted on Jul 09, 2009

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I have a Toshiba Tecra M7 that won't boot and up until this morning nothing worked. This is what I've done so far this morning WHEN it does decide to boot. 1. Power up computer from off with ESC...


Your hard drive may have gone south. Remove it and check with diagnostic software. Bad sectors in critical areas of operating system data will do this.

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Toshiba Tecra M4-S435 is Tablet PC. Windows XP (Profession) has no option of touch screen.
In order to use the feature, you need to install Windows XP Tablet PC Edition or you may install Windows 7, which supports this feature and you would definately be able to use stylus and touch screen, as I have installed Windows 7 and its working fine with all the drivers etc.

Hope it helps! Good Luck!
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Estrange characters appears in my tecra m4 645 nvidia


The video card has unseated or is fried due to overheating. The typical repair is to replace the entire motherboard which will cost about US$600 from a technician. The graphics chip GPU is soldered onto the motehrboard. I ahve heard some people cooking the GPU to reflow the solder if it is an unseated GPU chip that came loose but I have not tried this myself. This is a common problem of Tecra M4's and I have been through this problem 4 times in the past 4 years, each with expensive motherboard replacements.

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Soundcard driver for Toshiba Tecra M4-PTM40A Tablet.


The XP SP2 driver should work. http://www.csd.toshiba.com/cgi-bin/tais/su/su_sc_dtlViewDL.jsp?soid=980401&moid=893054&rpn=PTM42U&BV_SessionID=@@@@0801357951.1210987874@@@@&BV_EngineID=ccceadeedmeimgicgfkceghdgngdgmn.0&ct=DL&all_docs=false

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