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M52 or M55 Realtime Clock problem (XP)
Posted: Wed Feb 14, 2007 9:36 am
by xgc505m
Hi, 1st Post.
I've several IBM M55, and a couple of M52-945G that appear to be gaining time. I'm not concerened with the odd second or so, but the onboard clock is gaining 4 or 5 mins a day. Has anyone else seen this problem?
Build is XP SP2.
Ed
Posted: Thu Feb 15, 2007 11:42 am
by leoblob
Is the clock in the BIOS running too fast also?
M52 or M55 Realtime Clock problem (XP)
Posted: Thu Feb 15, 2007 11:58 am
by xgc505m
Hi Leoblob,
Yes, the BIOS Clock (System Time) is moving as well, curiously if I disable Audio Support (within the bios), the clock is stable.
V odd.
Ed.
Re: M52 or M55 Realtime Clock problem (XP)
Posted: Fri Feb 16, 2007 12:47 pm
by leoblob
xgc505m wrote: if I disable Audio Support (within the bios), the clock is stable
That is extremely strange. I have no idea how that could be possible.
Do all your M52s and M55s have this problem, or just some? And did they have this problem from the start, or did this happen more recently?
If it were me, I would replace the CMOS batteries and see if that helps. Also, I would check the BIOS versions to see if the computers that are OK (I assume some of them are) have different versions than on the 'bad' machines.
Posted: Tue Feb 20, 2007 7:22 am
by xgc505m
Thanks, I'll check the BIOS version accross the machines.
I've also found that disabling the SoundMAX driver in Device Drivers, rather than in the BIOS, has the same corrective effect and a bit easier to manage.
Ed
M52 or M55 Realtime Clock problem (XP)
Posted: Tue May 22, 2007 8:06 am
by xgc505m
Hi,
Managed to get hold of a mate at Lenovo, he confirmed there is an issue between the sound chipset and the Microsoft driver. We are not sure of the scope or reach of the issue, e.g which chipsets are affected, the only workaround is to disable the driver.
Posted: Tue May 22, 2007 1:16 pm
by leoblob
Thanks for posting your follow-up. That is a pretty weird problem.
Re: M52 or M55 Realtime Clock problem (XP)
Posted: Tue May 22, 2007 1:34 pm
by ryengineer
xgc505m wrote:Hi,
Managed to get hold of a mate at Lenovo, he confirmed there is an issue between the sound chipset and the Microsoft driver. We are not sure of the scope or reach of the issue, e.g which chipsets are affected, the only workaround is to disable the driver.
I thought about Moore's law of silicon chip upon your posting which is very impossible.
