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OT: Can CMOS battery on PC motherboard be hot-swapped?

Started by Joerg February 24, 2013
Jim Thompson wrote:
> > On Sat, 02 Mar 2013 17:46:44 -0500, "Michael A. Terrell" > <mike.terrell@earthlink.net> wrote: > > > > >Jim Thompson wrote: > >> > >> On Fri, 01 Mar 2013 20:09:27 -0800, josephkk > >> <joseph_barrett@sbcglobal.net> wrote: > >> > >> >On Mon, 25 Feb 2013 07:47:15 -0700, Jim Thompson > >> ><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote: > >> > > >> >>On Sun, 24 Feb 2013 10:59:35 -0800, Joerg <invalid@invalid.invalid> > >> >>wrote: > >> >> > >> >>[snip] > >> >>>> > >> >>> > >> >>>That's odd. Because the PC here is always sent to hibernate and the > >> >>>power is turned off. But it remains connected to 120VAC. Still, this > >> >>>morning the RTC was off again by more than five minutes from yesterday. > >> >>> > >> >>> > >> >>[snip] > >> >> > >> >>RTC's are often rather crappy. > >> >> > >> >>I use Socketwatch from... > >> >> > >> >> http://www.robomagic.com > >> >> > >> >>I'm currently within 50ms of UTC/ > >> >> > >> >> ...Jim Thompson > >> > > >> >You do not need an addon since Win2000/XP they do ntp natively, should be > >> >within 1 ms or better. > >> > > >> >?-) > >> > >> Socketwatch updates the clock once an hour. My statement was > >> technically incorrect... the 50ms was the last correction before I > >> read the clock. > >> > >> Socketwatch is automatic and settable to any interval desired and > >> checks _multiple_ time servers. > >> > >> Where is this Win2000/XP feature that does ntp automatically? > > > > Click on the clock in the taskbar to open the date & time. Click the > >right tab. > > I don't see how you can set that to every 15 minutes... looks like > it's once per week or upon reboot.
He just said automatic, not every 15 minutes.
On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid>
wrote:

>josephkk wrote: >> On Mon, 25 Feb 2013 12:43:01 -0800, Joerg <invalid@invalid.invalid> wrote: >> >>>> True. It's the clock and status registers below 0Fh that get >>>> scribbled to constantly. One could split the CMOS function in half, >>>> with the lower half continuing to be CMOS, while the rest is changed >>>> to flash. However, that will add front end cost and additional >>>> complexity, which are not good things. >>>> >>> Wouldn't it be a zero-cost piece of cake to at least write those to hard >>> disk and in case of finding a blank offer the user to restore from >>> there? Also, the BIOS is in flash so why not store there instead? >> >> The "CMOS" has long ago gone to flash onboard the southbridge chip. >>> It would behove the industry to think about this because there is one >>> major reason why PC sales are slumping: The things became to darn >>> complicated for ol'Leroy. He does not want to face a pricey Geek Squad >>> call every time some obtuse "unrecoverable error" has occurred. So he >>> invests his money into a smart phone instead. Because that's not >>> complicated. A PC is complicated. >> >> I think you really missed the boat on this one. Desktops in the home has >> hit saturation, but laptops for students and many other travel prone >> people is still growing. My latest laptop might be able to eat your 2 >> year old desktop for lunch performance wise; it is a real screamer. >> > >And after 2h the fun is over, battery exhausted. I do heavy SPICE and a >laptop won't last long that way. The HD writes for the RAW files alone >are a major burden.
Plug it in. Your desktop isn't going to work for very long if it's unplugged either. Most people scale back their processing power substantially when operating on battery. Two hours is a thing of the past.
>But what I meant was PC sales in general, including laptops. Many older >folks buy laptops these days because they don't want a space-hogging >tower and monitor setup. And it's the saem thing there: Writing setup >info that hardly ever changes into voltaile RAM is not smart.
Who does that, with flash being so ubiquitous?
krw@attt.bizz wrote:
> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> > wrote:
[...]
>> But what I meant was PC sales in general, including laptops. Many older >> folks buy laptops these days because they don't want a space-hogging >> tower and monitor setup. And it's the saem thing there: Writing setup >> info that hardly ever changes into voltaile RAM is not smart. > > Who does that, with flash being so ubiquitous?
Jeff brought an example, I don't know which mfgs use this: http://www.bioscentral.com/misc/cmosmap.htm# I have a Dell and the manual states that an image of the CMOS should be taken before removing the battery, in order to be able to restore the settings in there. But it fails to say how and what software to use for this. -- Regards, Joerg http://www.analogconsultants.com/
On Sat, 02 Mar 2013 16:09:27 -0800, Joerg <invalid@invalid.invalid>
wrote:

>krw@attt.bizz wrote: >> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> >> wrote: > >[...] > >>> But what I meant was PC sales in general, including laptops. Many older >>> folks buy laptops these days because they don't want a space-hogging >>> tower and monitor setup. And it's the saem thing there: Writing setup >>> info that hardly ever changes into voltaile RAM is not smart. >> >> Who does that, with flash being so ubiquitous? > > >Jeff brought an example, I don't know which mfgs use this: > >http://www.bioscentral.com/misc/cmosmap.htm# > >I have a Dell and the manual states that an image of the CMOS should be >taken before removing the battery, in order to be able to restore the >settings in there. But it fails to say how and what software to use for >this.
Maybe just write down the settings? There's not very many. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
On Sat, 02 Mar 2013 17:14:10 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>On Sat, 02 Mar 2013 16:09:27 -0800, Joerg <invalid@invalid.invalid> >wrote: > >>krw@attt.bizz wrote: >>> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> >>> wrote: >> >>[...] >> >>>> But what I meant was PC sales in general, including laptops. Many older >>>> folks buy laptops these days because they don't want a space-hogging >>>> tower and monitor setup. And it's the saem thing there: Writing setup >>>> info that hardly ever changes into voltaile RAM is not smart. >>> >>> Who does that, with flash being so ubiquitous? >> >> >>Jeff brought an example, I don't know which mfgs use this: >> >>http://www.bioscentral.com/misc/cmosmap.htm# >> >>I have a Dell and the manual states that an image of the CMOS should be >>taken before removing the battery, in order to be able to restore the >>settings in there. But it fails to say how and what software to use for >>this. > >Maybe just write down the settings? There's not very many. > > ...Jim Thompson
One of the best points in the entire thread.
Jim Thompson wrote:
> On Sat, 02 Mar 2013 16:09:27 -0800, Joerg <invalid@invalid.invalid> > wrote: > >> krw@attt.bizz wrote: >>> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> >>> wrote: >> [...] >> >>>> But what I meant was PC sales in general, including laptops. Many older >>>> folks buy laptops these days because they don't want a space-hogging >>>> tower and monitor setup. And it's the saem thing there: Writing setup >>>> info that hardly ever changes into voltaile RAM is not smart. >>> Who does that, with flash being so ubiquitous? >> >> Jeff brought an example, I don't know which mfgs use this: >> >> http://www.bioscentral.com/misc/cmosmap.htm# >> >> I have a Dell and the manual states that an image of the CMOS should be >> taken before removing the battery, in order to be able to restore the >> settings in there. But it fails to say how and what software to use for >> this. > > Maybe just write down the settings? There's not very many. >
Everything past 0Fh? Not "many"? Ok, I just bought a new set of ink roller pens so at least I wouldn't run out of ink :-) -- Regards, Joerg http://www.analogconsultants.com/
On Sat, 02 Mar 2013 16:31:53 -0800, Joerg <invalid@invalid.invalid>
wrote:

>Jim Thompson wrote: >> On Sat, 02 Mar 2013 16:09:27 -0800, Joerg <invalid@invalid.invalid> >> wrote: >> >>> krw@attt.bizz wrote: >>>> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> >>>> wrote: >>> [...] >>> >>>>> But what I meant was PC sales in general, including laptops. Many older >>>>> folks buy laptops these days because they don't want a space-hogging >>>>> tower and monitor setup. And it's the saem thing there: Writing setup >>>>> info that hardly ever changes into voltaile RAM is not smart. >>>> Who does that, with flash being so ubiquitous? >>> >>> Jeff brought an example, I don't know which mfgs use this: >>> >>> http://www.bioscentral.com/misc/cmosmap.htm# >>> >>> I have a Dell and the manual states that an image of the CMOS should be >>> taken before removing the battery, in order to be able to restore the >>> settings in there. But it fails to say how and what software to use for >>> this. >> >> Maybe just write down the settings? There's not very many. >> > >Everything past 0Fh? Not "many"?
Come on! You DO have equipment later than 1980 ???
> >Ok, I just bought a new set of ink roller pens so at least I wouldn't >run out of ink :-)
I just bought some T\u\l (that's an over-bar :) medium needlepoint pens. I've been having problems with the usual rollerball offerings going all the way thru the cheap-ass paper masquerading as "green", and bleeding such that readability goes to hell. So far the T\u\l pens seem quite good. Do the world a favor... locate a greenie and burn his ass to the ground >:-} ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
On Sat, 02 Mar 2013 17:42:33 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>On Sat, 02 Mar 2013 16:31:53 -0800, Joerg <invalid@invalid.invalid> >wrote: > >>Jim Thompson wrote: >>> On Sat, 02 Mar 2013 16:09:27 -0800, Joerg <invalid@invalid.invalid> >>> wrote: >>> >>>> krw@attt.bizz wrote: >>>>> On Sat, 02 Mar 2013 09:03:38 -0800, Joerg <invalid@invalid.invalid> >>>>> wrote: >>>> [...] >>>> >>>>>> But what I meant was PC sales in general, including laptops. Many older >>>>>> folks buy laptops these days because they don't want a space-hogging >>>>>> tower and monitor setup. And it's the saem thing there: Writing setup >>>>>> info that hardly ever changes into voltaile RAM is not smart. >>>>> Who does that, with flash being so ubiquitous? >>>> >>>> Jeff brought an example, I don't know which mfgs use this: >>>> >>>> http://www.bioscentral.com/misc/cmosmap.htm# >>>> >>>> I have a Dell and the manual states that an image of the CMOS should be >>>> taken before removing the battery, in order to be able to restore the >>>> settings in there. But it fails to say how and what software to use for >>>> this. >>> >>> Maybe just write down the settings? There's not very many. >>> >> >>Everything past 0Fh? Not "many"? > >Come on! You DO have equipment later than 1980 ??? > >> >>Ok, I just bought a new set of ink roller pens so at least I wouldn't >>run out of ink :-) > >I just bought some T\u\l (that's an over-bar :) medium needlepoint >pens. I've been having problems with the usual rollerball offerings >going all the way thru the cheap-ass paper masquerading as "green", >and bleeding such that readability goes to hell. So far the T\u\l >pens seem quite good.
I've been using Tul pens since 2007. I just wish I could buy only the red ones. I have plenty of the others. I have some of the medium point ones. They're great for writing (what little writing I do) but I prefer the fine point for markups.
>Do the world a favor... locate a greenie and burn his ass to the >ground >:-} > > ...Jim Thompson
krw@attt.bizz wrote:
> On Sat, 02 Mar 2013 17:42:33 -0700, Jim Thompson > <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote: > >> On Sat, 02 Mar 2013 16:31:53 -0800, Joerg <invalid@invalid.invalid> >> wrote:
[...]
>>> Ok, I just bought a new set of ink roller pens so at least I wouldn't >>> run out of ink :-) >> I just bought some T\u\l (that's an over-bar :) medium needlepoint >> pens. I've been having problems with the usual rollerball offerings >> going all the way thru the cheap-ass paper masquerading as "green", >> and bleeding such that readability goes to hell. So far the T\u\l >> pens seem quite good. > > I've been using Tul pens since 2007. I just wish I could buy only the > red ones. I have plenty of the others. I have some of the medium > point ones. They're great for writing (what little writing I do) but > I prefer the fine point for markups. >
Actually, I'll have to correct my statement, it's gel pens. Pentel EnerGel BLN105, 0.5mm. Those are really nice for drawing schematics that need to be scanned and shared, or "skyped". Also to write on the back side of the green AMPAD paper where pencil is hardly readable. [...] -- Regards, Joerg http://www.analogconsultants.com/
On Sat, 02 Mar 2013 17:14:10 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>Maybe just write down the settings? There's not very many. > ...Jim Thompson
Digital camera? NvramRestorer - dumping and restoring BIOS settings in Windows <http://www.codeproject.com/Articles/38226/NvramRestorer-dumping-and-restoring-BIOS-settings> (Login required). HWdirect <http://www.eprotek.com> CMOS Save <http://mindprod.com/products4.html#CMOSSAVE> <http://www.softpedia.com/get/System/System-Miscellaneous/CMOS-save-CMOSrest.shtml> Using the IBM ASU (advanced settings utility) DUMP command: <http://publib.boulder.ibm.com/infocenter/toolsctr/v1r0/index.jsp?topic=%2Fasu%2Fdump_cmd.html> <http://publib.boulder.ibm.com/infocenter/toolsctr/v1r0/topic/asu/asu_guide.pdf> CMOS save/restore <http://www.simtel.net/product/view/id/50211> Disclaimer: I haven't tested any of these. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558