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Thread: Asus T100TA shutting down after exactly 30 minutes, please help!!!

  1. #21
    Soundwave
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    Quote Originally Posted by Rocket_Scientist View Post
    It's likely a BIOS problem, 30 min is more than enough time to flash an updated one.
    It takes less than 5 minutes if you have all files ready to go.
    TA & TAS are mixed together. Asus never provides change logs.
    https://www.asus.com/support/Download/3/580/0/1/40/
    In order of update by date:
    BIOS 207 (T100TAS); 2014/06/18
    BIOS 213 (T100TAS); 2015/03/05
    BIOS 214 (T100TAS); 2015/10/21

    Since you are still on Win8.1, look for Windows BIOS Flash Utility WinFlash_Win81_32_VER2420.zip
    Just a thought but can I go from 207 straight to 214 or should I go through 213 first ??

    Quote Originally Posted by Audio01 View Post
    Sorry to say, forget about that 30 min problem. There's no fix. It seems it's some kind of defect. I finally purchased an used T100TA motherboard from eBay for about USD 65.- That's all you can do. Obviously assuming that you could manage to do the motherboard swap.

    Cheers!
    Sadly I think you are correct, when you look about there are many many people with many different laptops and desktops which suffer this which makes me think its a rouge chip somewhere on the board which is causing it. I'll try the BIOS route but dont hold out much hope.
    Motherboard change doesnt really phase me, just would prefer an easier option.

    Quote Originally Posted by Rocket_Scientist View Post
    1. The only thing Live Update updates is Live Update.
    2. I wouldn't call it a working machine. If I had a car that shut down every 30 minutes, I'd sell it for parts.
    1) Oh I understood Asus Live update would up date the BIOS in the end just not as quick as doing it manually.
    2) I get what you're saying but having a car that runs for 30mins is better than having no car at all, especially if you only want to do a 30min trip

    Quote Originally Posted by helpifIcan View Post
    Yes no log for BIOS but the windows log might give you a clue to what is causing the crash. More then likely a hardware issue then software.
    Looking at the logs it just dies with the standard unexpected shut down comment, it happens so quickly I dont think it has a chance to write anything of use.

    I'm definately of the opinion its a universal chip thats been used on the board somewhere which is the problem, google throws up loads of people with similar issues from laptops to desktops https://www.google.co.uk/search?q=co...exactly+30mins
    Trouble is many folks think its some kind of OS power setting but its not.

    Think I'm on a hiding to nothing but I'll try the BIOS upgrade

  2. #22
    Starscream
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    You can go from 207 straight to 214.
    Asus Transformer T100TAM-C1-GM, Atom Z3775, 2GB-RAM, 64GB eMMC, Win8.1-32 updated to Win10-32
    ASUSTeK Computer Inc. -Support- Drivers and Download T100TAM

  3. #23
    Soundwave
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    Right so thought I'd give an update on this mess so after updating to Bios 214 as suspected it made no difference what so ever and still it shuts down on exactly on the 30min mark

    So I started looking about for a new MOBO for it and found a complete tab minus the keyboard for the same price as a MOBO

    This new/2nd hand unit seems fine currently, it is slightly different mind.

    The old one is speced as below
    Model T100TAS
    CPU is Z3775
    Bios is T100TAS.207 14/05/2014 (now has the updated Bios of 214)


    This replacement is spec'd like this....
    Model T100TA
    CPU is Z3740
    Bios is 304

    So whats the difference ?? it does seem the processor speed is a tadge slower @ 1.33GHz compared to 1.46GHz of the old one.

    I am assuming the new/2nd hand one is a slightly older model ? yet the Bios is a higher number ??

  4. #24
    Starscream
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    Quote Originally Posted by ChrisBe View Post
    ...

    The old one is speced as below
    Model T100TAS
    CPU is Z3775
    Bios is T100TAS.207 14/05/2014 (now has the updated Bios of 214)


    This replacement is spec'd like this....
    Model T100TA
    CPU is Z3740
    Bios is 304

    So whats the difference ?? it does seem the processor speed is a tadge slower @ 1.33GHz compared to 1.46GHz of the old one.

    I am assuming the new/2nd hand one is a slightly older model ? yet the Bios is a higher number ??
    Intel Atom Z3775 vs Z3740
    Replacement is a TA not a TAS & has older BIOS, latest is 314.
    BIOS numbers don't mean too much, look at the BIOS date.

    BTW, someone else had the same shutdown problem with an Asus desktop. It was the motherboard.
    https://superuser.com/questions/8081...on-bios-screen
    Last edited by Rocket_Scientist; 04-13-2017 at 05:01 PM.
    Asus Transformer T100TAM-C1-GM, Atom Z3775, 2GB-RAM, 64GB eMMC, Win8.1-32 updated to Win10-32
    ASUSTeK Computer Inc. -Support- Drivers and Download T100TAM

  5. #25
    Soundwave
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    Quote Originally Posted by Rocket_Scientist View Post
    Intel Atom Z3775 vs Z3740
    Replacement is a TA not a TAS & has older BIOS, latest is 314.
    BIOS numbers don't mean too much, look at the BIOS date.

    BTW, someone else had the same shutdown problem with an Asus desktop. It was the motherboard.
    https://superuser.com/questions/8081...on-bios-screen
    Cheers RS

    Right so the replacement is an older unit and apparently shouldnt be as good, yet I've checked the pair and the replacement is faster ?

    I've rest both Tabs to factory now so they are exactly in the same state. There is something very odd going on with my original which should be the better of the two. From a cold restart the original takes 30sec's to get to the log in screen, the replacement takes a mere 12 seconds.
    The replacement seems far more frugal with the battery, both have exactly the same settings yet the original has a nasty habit of munching through the battery at an alarming rate when in standby, where as the replacement barely sniffs at the battery when in standby.
    I've never got more than 24hrs from the original one when in standby, I tended to just put it down to it being a Win 8 tablet and I tended to shut it down completely to save the battery, but the replacement tab has done 36hrs and a bit of surfing and its only at 56% now !!!

    The replacement feels completely different, looks to me like my original has always been a bit of a sick tablet and I should have sent it back, but not knowing what a good one felt like I was none the wiser. Theres something the originals doing that the replacement isnt I feel.

    Yes there are many folks who have suffered the 30min shut down issue, the best I've found is its a rouge chip that was used at sometime on a number of boards which does a check after 30mins and if it doesnt like something it kills off the power.

    Boards effected seem to be ASUS, ACER, DELL to name 3

  6. #26
    Starscream
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    Z3775 has a much higher turbo frequency.
    Your power options advanced settings may be keeping it a maximum all the time. Look for Processor Power Management.
    Mine was set to 100% for all. Need to reduce it when sleep or sitting idle.
    How to Use Maximum CPU Power in Windows 10

    When in use, you can monitor cpu usage with HWInfo.
    https://www.hwinfo.com/
    Last edited by Rocket_Scientist; 04-14-2017 at 05:19 PM.
    Asus Transformer T100TAM-C1-GM, Atom Z3775, 2GB-RAM, 64GB eMMC, Win8.1-32 updated to Win10-32
    ASUSTeK Computer Inc. -Support- Drivers and Download T100TAM

  7. #27
    Soundwave
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    Quote Originally Posted by Rocket_Scientist View Post
    Z3775 has a much higher turbo frequency.
    Your power options advanced settings may be keeping it a maximum all the time. Look for Processor Power Management.
    Mine was set to 100% for all. Need to reduce it when sleep or sitting idle.
    How to Use Maximum CPU Power in Windows 10

    When in use, you can monitor cpu usage with HWInfo.
    https://www.hwinfo.com/
    Useful stuff there RS

    Although that doesnt explain why the 3775 takes so long to boot from cold and its general sluggish response, both are running stock Win8 from the inbuilt ROM

    Interestingly since finding this older unit I've been using it way more than the original ever got used because its so much more usable now.

  8. #28
    Starscream
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    Quote Originally Posted by ChrisBe View Post
    U...Although that doesn't explain why the 3775 takes so long to boot from cold and its general sluggish response...
    Whatever hardware timer is causing the 30 minute shutdown is eating up all the cpu clock cycles. That will cause it be always be slow.
    BTW, you might find this interesting:
    It's Microsoft's fault cheap Windows laptops don't use better hardware - Geek.com
    Asus Transformer T100TAM-C1-GM, Atom Z3775, 2GB-RAM, 64GB eMMC, Win8.1-32 updated to Win10-32
    ASUSTeK Computer Inc. -Support- Drivers and Download T100TAM

 

 
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