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  Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup. 
 
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Matthew Hanna Feb 17, 2005, 03:31pm EST Reply - Quote - Report Abuse
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Hey guys, I have a Toshiba a75. Works fairly well for the most part. Yesterday I was playing a very old computer game and everything was working fine, and then all of a sudden my computer shuts off (on ac power). Kind of weird but I just restart and go on my way. Today I was playing the same game and it happened again...just turned off, blank screen etc. So i go to restart it, and as it was about to load windows it does it again. And so I try again, and then it came up as "Error to load windows, go to safe mode or try again" type screen. I try again, and it turns off. I try another time same thing. I decided to give it some time, and maybe 30 minutes later I try again and it starts up w/o a problem. I work on it for an hour or so (I am on it now BTW), and it works fine. I go to class (college student) and when I come back my computer is off (I am assuming it happened again). Anybody have any clue what is going on? Thanks.


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Matthew Hanna Feb 17, 2005, 07:42pm EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I don't really know much about cpus, but i have a feeling that it has something to do with its getting too hot and shutting down? just a hunch, it just seems like right before it does it gets real hot.

Christian Terrazas Feb 24, 2005, 10:45am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I have found the answere to this problem! The original source is here
http://www.hardwareanalysis.com/content/topic/23605/?o=40

This is regarding the Toshiba Satellite A70 and the Toshiba Satellite A75 model laptops only....It may apply to others but it is a reproducable problem and has been reproduced at will on these two models.

There is a serious design issue with the Toshiba A70 / A75 laptop notebooks that is responsible for random freezing and/or rebooting of the system.

After reading many posts on various forums and newsgroups throughout the web in which Toshiba A70 /A75 owners search for a reason to explain this seemingly random freezing and/or rebooting of the system, myself and several other computer technicians have discovered what is causing this. It is reproduced easily under the correct conditions. An A70 /A75 owner can do this themselves and can then contact Toshiba and demand a recall or compensation.

Turn on a Toshiba Satellite A70 S256 or A70 S259 models or the Satellite A75 models and let it boot up. Once windows has finished loading completely, stand up and walk around on a carpet for a minute or less. Touch either metal speaker cover but the left speaker cover is much more sensitive than the right. Now try and move your mouse or type on the keyboard. 7 out of 10 times the system will be froozen or it will reboot. When conditions are ripe for static electricity to build up, you will not even have to walk around on a carpet to generate static in your body. Just moving your hands from the touchpad to the keyboard is often sufficient to create the freeze or reboot. Sliding your finger over the case between the touchpad and the left speaker cover will also freeze and/or reboot the system under these conditions.

I have several of these models at my disposal and can readily reproduce this issue on every one. In an office setting in which a forced air heating system is present (this is the most common heating system for medium to large office buildings) the problem renders the laptop un-usable. Data is often lost and when a reliable running laptop with reliable running software is the difference between working and not working or getting paid or getting fired, this model Toshiba is a definite drain on your ability to get paid, not get fired and to work without constant freezing and reboots.

Those of you who live in a part of the world in which you do not experience cold temperatures and forced air heated buildings should be lucky enough to experience this design flaw very infrequently if at all. Static electricity is funny. Sometimes you can discharge it from your person my holding the desktop as you seat yourself in a chair but at other times it builds just by moving your fingers and hands as you type until you come in contact with something that will conduct it and the metal speaker covers on the A70 /A75 are just the sort of thing that can and does conduct static electricity to your laptop.

Static electricity is nothing new. There are standards manufactures adhere to in an effort to minimize the dissipation of static electricity through a laptop frame into the motherboard, memory and so on.

That's why hardware technicians (the good ones) always stand on a static pad that is grounded and wear a wrist strap that is grounded to a static pad under the laptop. Static discharge will damage memory, motherboard circuits and other wiring harness components.

IMHO the average consumer should not be expected to wear additional static disappating equipment or stand on static dissipation pad to engage in normal everyday use a laptop.

If you do not believe me check the various newsgroups and laptop forums on the Internet. Look for how many messages are posted in regards to the A70 / A75 Toshiba Satellite models freezing and/or rebooting randomly. Some owners of this laptop have been updating the BIOS, disabling tapping on the touchpad, setting the touchpad to the lowest sensitivity possible, turning off hyperthreading and more in an effort to resolve this issue.

If you own a Toshiba Satellite A70 or a Toshiba Satellite A75 laptop and you are experiencing random freezing and/or rebooting, please contact Toshiba and tell Toshiba you have discovered the source of your problem. These laptops have been designed in such a way that normal everyday static electricity levels in the user will cause the system to freeze and/or reboot when the left speaker is touched and sometimes when the right speaker is touched and sometimes when you move your hands from the touchpad to the keyboard and still at other times when you slide your finger over the frame between the touchpad and the speaker covers.

This is a serious and potentially damaging situation for the laptop. Do not delay. Try it yourself and then contact Toshiba if you can reproduce the issue and demand a recall.

Christian Terrazas Feb 24, 2005, 10:48am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I forgot! I own a TOSHIBA A75-S2762.

Matthew Hanna Apr 10, 2005, 08:33pm EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Hey guys.

I've been away for a bit.



It may be this static electicity although I think its because it overheats.


Basically I play some low level cpu games, and it overheated and turned off many times. Therefore I put my cpu up another 2cm or so, to help air flow under the unit. This solved it for awhile.

However now I am playing a new game Gunbound. This cpu should easily run this game. However now it overheats or something even while being raised by 2 cm or so.

Hugo Ramirez Apr 28, 2005, 08:12am EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I'm positive it is an overheat problem, i got a Satellite A75-SP231, can't play videogames in it, at least no more than 5 minutes because it gets overheated and turns off. This really sux, is there something i can do in order to solve this problem?. The only game i can play with no trouble is DOOM 3, it doesn't turns off while playing it, but nothing else works...very weird a?.... Toshiba Tech assist is crap, i reported the problems, they gave me a new laptop and it is all the same...PLZ HELP!!! Do i have to put my laptop in a refrigerator or sumthin?

Another issue, i detected there is a problem with the sound card, sound is extremely low......i tested with external speakers and got same result. Drivers updated....same result....

Maybe I gotta burn this laptop and buy another.
Thnx.

Matthew Hanna May 01, 2005, 07:49pm EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Yeah, I bought a laptop cooler, and that didn't work. To play any games I have ot basically prop the laptop up on something to allow for me airflow.

Murat Kanik May 04, 2005, 10:34am EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
For all Toshiba laptops if there is a overhearting problem it shuts itself off... extra cooler doesnt work... a technician should open the case and clean the cooling system

Matthew Hanna May 04, 2005, 06:11pm EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Yeah but its brand new.

Jiad Elkadri May 17, 2005, 05:03pm EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
check out the following:

http://209.167.114.38/support/TechSupport/TSBs/ALL/-TSB001087.htm

There is a static fix for these laptops. what they end up doing is putting foil around the speaker inside the laptop.

gkv V May 24, 2005, 03:25am EDT Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I have a Toshiba A70 ML1 model, 2 months old. Have been happily working with the unit till some time ago... Few days back it turned off suddenly during usage [was checking out a DVD]. When I turned it on, it started to come up (safe mode) but turned off immediately (within 20 seconds of power on). I guessed it was failing the POST... Then I left it to "cool down" for an hour, placed it on a table and powered it on. It came up OK, and did not turn off for an hour. I tried soft reboots, hibernates, and all were OK in the first hour. But when I tried a hard reboot, it again turned off at the boot up.

Then I tried it the next day, and it went on fine for about 2 hours before getting a sudden death again. I could perceive that the unit had become pretty warm (near the power supply and fans). I tried booting up after few minutes, it died at the POST. Richer with the experience, I left it to cool down (What a way to work !).... after a few hours, it was OK, and first thing I did was to start doing a CD back up of data just to be safe ! Good thing it didn't die during the backup.

As I have seen in some of these posts, it appears to me as a hardware failure caused due to overheating and improper ventillation. Maybe the cooling vents are clogged... But coupled with the Static/Speaker problem, this is a damaging showstopper... You never know when this unit will go to deep sleep... Having purchased a Toshiba for its reported low faults, I am sorely dissappointed.

Alex Oliveira Dec 01, 2005, 05:30pm EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Hey Sports Fans,

If you own the A70 and you think Toshiba should be issuing a recall because of the NUMEROUS problems with this POS.

http://groups.yahoo.com/group/ihatemytoshibaa70/


d e Dec 03, 2005, 04:59am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
so i have had this problem with my A75 too, not the static, but the overheating issue. both seem to be fixable to me, however it will take some effort on our parts, which shouldnt happen.

what ive basically concluded, is that it is overheating because of dust. in the next few days, im going to try and fix it...so i will let everyone know how it goes!!

Jer Cepek Dec 17, 2005, 08:49am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Hey everyone,

I had the exact same problem that you guys had with my Satellite A70. I knew that it for surely was an overheating problem because I installed a program to monitor the CPU temperature, and everytime the thing died and I started it back up, the temperature was sky high. So, I took it upon myself to completely disassemble the computer and clean out the dust, hoping that this was the problem. Once I had completely ripped the thing down to the processor, I couldn't believe what I had found. There are two main parts to the CPU heat sink. The first part (the one that you can see from the vent at the back of the computer) was restricted to about 40% of full air flow by a wall of dust. This was the better part. The other part of the heat sink (the part right over the CPU), was completely plugged SOLID with dust. I cleaned all this crap out, put it back together, and ever since, the fan hasn't even had to go on high power because it cools just fine (and obviously it hasn't died since either!) I can almost guarantee you that this is the problem all of you are having and this will fix it (my computer it only 4 months old and it was already plugged!!). Toshiba has simply very poorly designed its heat sink and it therefore acts more like a dust trap than a heat sink. If you need instructions on how to disassemble your Toshiba, check out: http://www.irisvista.com/tech/index.htm, the instructions are very clear.

Good luck!

Shadow_Ops_Airman1 Dec 17, 2005, 09:11am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
i think there is a problem with the Powersupplies and batteries of those toshiba laptops.

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
Shadow_Ops_Airman1 Dec 17, 2005, 09:14am EST Reply - Quote - Report Abuse
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Edited: Dec 17, 2005, 09:24am EST

 
>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
yall should call tech support. and if they cant help you out post your claim to Maximum PC and they should look into it, also if you are having such a problem sell it on e-bay so someone can actually fix it and put it back into service, or go to a local Toshiba notebook certified repair shop, im somewhat tired of seeing toshiba problems here when most of us cant fix them without actually looking at the laptop itself, it would also help if yall would blow the dust out of them and also if the unit comes with disassembly manual read it. Also before posting a new topic PLEASE USE THE FRACKIN SEARCH FUNCTION AT TOP OF THE SCREEN!

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
Jer Cepek Dec 17, 2005, 09:31am EST Reply - Quote - Report Abuse
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Edited: Dec 17, 2005, 09:32am EST

 
>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Honestly, there's no problem with the power supply or batteries, that makes absolutely no sense. You just need to grow some balls, rip it apart and clean out the heat sink!

Shadow_Ops_Airman1 Dec 18, 2005, 02:06am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
trust me ive cleaned many laptops out, even some other model sattelites that have same problems. trust me sattelites are bitches about heat.

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
Jer Cepek Dec 18, 2005, 08:23am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
Honestly, the thing can't be "a bitch about heat". If the heat sink is returned to its original condition and you still have a good contact between it and the processor (with some thermal grease), then it will cool correctly. Unless you don't have a fan working or something stupid like that it will be ok. Toshiba doesn't hire engineers for nothing, and thermodynamics always works.

Shadow_Ops_Airman1 Dec 18, 2005, 08:53am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
doesnt seem to be, ive seen so many sattelites with the same problem and ive done same procedures, it seems i havent had a problem with compaq or even Dells High end XPS Gen 1 which uses a Desktop chip for performance.

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
Jer Cepek Dec 18, 2005, 08:56am EST Reply - Quote - Report Abuse
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>> Re: Toshiba A75 turns off randomly, both during normal windows ops, gameplay, and bootup.
I'm just trying to understand what you think is the problem, because I don't see what else could be preventing it from cooling unless the fans weren't working... Even if the processor was at 100% all the time, the stock cooling system would be able to cool it, because that's what it's designed to do.


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