T100HA forgets time of day when powered off

[dougbert]

Hello,

If I power down my T100HA and turn it on a few minutes later, I often find that the Windows time setting
is behind by as much as a couple of hours. The "update time automatically" setting does not seem to help,
unless I turn that setting off and on again, at which point the clock gets correctly set.

Is this a known issue? Or does this sound like a hardware problem? If this were
a desktop PC, I would naturally suspect the CMOs backup battery, but of course
the T100 has no user-servicable parts...

The BIOS is up-to-date, I believe: version 214.

I just noticed that if I go into the BIOS setup screen, usually
the time of day setting is counting seconds, but sometimes it is frozen.
Does that seem like a smoking gun for a hardware problem?

Thanks,
Doug

[tanmahah]

Hello,

If I power down my T100HA and turn it on a few minutes later, I often find that the Windows time setting
is behind by as much as a couple of hours. The "update time automatically" setting does not seem to help,
unless I turn that setting off and on again, at which point the clock gets correctly set.

Is this a known issue? Or does this sound like a hardware problem? If this were
a desktop PC, I would naturally suspect the CMOs backup battery, but of course
the T100 has no user-servicable parts...

The BIOS is up-to-date, I believe: version 214.

I just noticed that if I go into the BIOS setup screen, usually
the time of day setting is counting seconds, but sometimes it is frozen.
Does that seem like a smoking gun for a hardware problem?

Thanks,
Doug

I'm facing the same problem. It's a few days old tablet. BIOS clock is not ticking.
I tried to stop windows time service, thinking it may be interferring. But, no, it is not.
Tried to download and flash the BIOS 214(ASUS Transformer Book T100HA | 2-in-1 PCs | ASUS Global). WinFlash says that it is too old to flash.
Restarted Time Service. No gain.
I hope it is a BIOS problem. May be clock crystal is bad.

Have you contacted ASUS? I'll trying to contact them.
Will update here.

[Asus_USA]

Hello,

If I power down my T100HA and turn it on a few minutes later, I often find that the Windows time setting
is behind by as much as a couple of hours. The "update time automatically" setting does not seem to help,
unless I turn that setting off and on again, at which point the clock gets correctly set.

Is this a known issue? Or does this sound like a hardware problem? If this were
a desktop PC, I would naturally suspect the CMOs backup battery, but of course
the T100 has no user-servicable parts...

The BIOS is up-to-date, I believe: version 214.

I just noticed that if I go into the BIOS setup screen, usually
the time of day setting is counting seconds, but sometimes it is frozen.
Does that seem like a smoking gun for a hardware problem?

Thanks,
Doug

I'm facing the same problem. It's a few days old tablet. BIOS clock is not ticking.
I tried to stop windows time service, thinking it may be interferring. But, no, it is not.
Tried to download and flash the BIOS 214(ASUS Transformer Book T100HA | 2-in-1 PCs | ASUS Global). WinFlash says that it is too old to flash.
Restarted Time Service. No gain.
I hope it is a BIOS problem. May be clock crystal is bad.

Have you contacted ASUS? I'll trying to contact them.
Will update here.

We're sorry to hear about this issue you started experiencing with the time on your Notebooks and we are happy to have this looked into for you. Please email socialsupportus@asus.com with your serial number, current operating system and details for further assistance.

If you have any further questions, comments, or concerns please do not hesitate to let us know. We will be more than happy to assist you. Once again, thank you for choosing ASUS products and services.

Thank you,

-In Search of Incredible-

Technical Support Department
ASUS USA :: Support Center | ASUS USA

[Rocket_Scientist]

...If I power down my T100HA and turn it on a few minutes later, I often find that the Windows time setting
is behind by as much as a couple of hours. The "update time automatically" setting does not seem to help,
unless I turn that setting off and on again, at which point the clock gets correctly set.

Is this a known issue? ...

I've been seeing the same thing on my desktops & notebooks.
Either a Windows 10 problem (firewall) and/or a time server problem.

[tanmahah]

The web is full of complaints regarding BIOS clock, mostly(90%) related to Asus Mobo, Tabs, PC, etc.). I'm surprised that they never looked at such complaint seriously.
I've already raised a request through VIP.ASUS.COM. I'm waiting for the reply.

[tanmahah]

ASUS says that CMOS battery is dying, so I've to run to their Service Center.
I'm returning the product. Don't want to create problems for future.

When CMOS battery dies, time returns to some fixed value, as 1.1.2000, on every boot.
While my tablet doesn't show this symptom. It shows the time when I shut it. So, I think they have some other problem.

Better if ASUS says it in clear words here, instead of telling us to contact somewhere else.

This was my first ASUS product. Disappointed.

[janner43]

These things still have a CMOS battery? Really... is this right or just another ill informed adviser...?
(Genuine question)

[Rocket_Scientist]

There may be a capacitor that the main battery keeps charged, but there is no replaceable CMOS battery.

[janner43]

There may be a capacitor that the main battery keeps charged, but there is no replaceable CMOS battery.

I thought so - but didn't want to say definitively...

[TheFedex87]

Hi all. I received the T100HA just a month ago, and I have the same problem. Time is frozen at the same hour when I switch off the pc. Did somone solved the problem?