 OT CMOS (by Reid [KS]) Oct 15, 2009 1:22 AM
 OT CMOS (by compwhiz [CA]) Oct 15, 2009 3:07 AM
OT CMOS (by Reid [KS]) Oct 15, 2009 3:51 AM
OT CMOS (by John... [MI]) Oct 15, 2009 5:52 AM
OT CMOS (by Dale [KY]) Oct 15, 2009 6:08 AM
OT CMOS (by Virden [OH]) Oct 15, 2009 6:33 AM
OT CMOS (by Josh [CA]) Oct 15, 2009 8:01 AM
OT CMOS (by John [NJ]) Oct 15, 2009 9:23 AM
OT CMOS (by John [NJ]) Oct 15, 2009 9:27 AM
OT CMOS (by Dave [CA]) Oct 15, 2009 12:31 PM
OT CMOS (by Reid [KS]) Oct 15, 2009 2:46 PM
OT CMOS (by John... [MI]) Oct 16, 2009 6:10 AM
OT CMOS (by Reid [KS]) Posted on: Oct 15, 2009 1:22 AM
Message:
I've have The first Computer I ever bought . It was a Pionex 486DX . I updated it with an Evergreen 90Mhz Over drive chip , extra RAM and two HDD's it ran on windows 3.11 For the last 11 years I was just using it as basically a copy machine . This last spring the CMOS battery went dead . I took it to 2 places and they couldn't even identify were the CMOS battery was in the thing. I would just toss it out but it's got a lot of information on the HDD that I want. What do I do ? --69.155.xx.xx |
OT CMOS (by compwhiz [CA]) Posted on: Oct 15, 2009 3:07 AM
Message:
The CMOS battery is the shape and size of a quarter on modern machines. It is found on the main circuit board. You can get a replacement at any electronics store.
On older machines the battery is the shape of a 9v battery and generally have red and black wires terminated with a connector. You will need to find an exact match for a replacement. You should be able to find it on the Internet.
--68.122.xx.xxx |
OT CMOS (by Reid [KS]) Posted on: Oct 15, 2009 3:51 AM
Message:
I looked High and low for The flat silver type battery and so did both Computer shops. I searched the Net with no success and to be sure I'm no Computer authority . Both shops said they couldn't identify a battery . These weren't home town guys I toke the thing to Bartlesville , Oklahoma . I still have the papers that came with the machine and they didn't help their techs either I guess, I haven't taken it to a third place yet cause the first two charged me for nothing . --69.155.xx.xx |
OT CMOS (by John... [MI]) Posted on: Oct 15, 2009 5:52 AM
Message:
It could also be soldered directly to the board and look more like a capacitor.
But, in any case, maybe we're looking at this the wrong way. Do you really want it fixed? Or do you just want the data? If so, the drive is likely IDE and you could therefore still just connect it to many modern machines to copy the data off onto a new PC.
So, do you need it to run -- or do you just want a copy of the data?
- John...
--207.241.xxx.xxx |
OT CMOS (by Dale [KY]) Posted on: Oct 15, 2009 6:08 AM
Message:
My 286 machine CMOS battery died sometime around 1992. I remember a small battery pack that plugged into the mother board somewhere. I bought a battery case at radio shack and put in some double A batteries that added up to whatever voltage the old battery was and plugged it into the board.
It lasted until I built a Pentium machine in 1995 or 1996.
--199.61.xx.xxx |
OT CMOS (by Virden [OH]) Posted on: Oct 15, 2009 6:33 AM
Message:
Reid, post a picture link of the board, I used to do the overclocking tinkering - there were many battery styles some grey some black, many silver cr3025 cells that cost 3bux in drug mart. If you can solder wiring to an old hobby radio I am sure you can fix this, back then mfm was the drive language, ide was made popular when the drive geometry went past 540 meg bytes - big stuff then, I paid over 400bux to get one of those 500mg drives in 94 for my 486dx48 <-- my grandkids still use it for painting pictures with w311. --76.241.xxx.xxx |
OT CMOS (by Josh [CA]) Posted on: Oct 15, 2009 8:01 AM
Message:
John (MI)is correct. That is what I would do.
Remove the hard drive and plug it up to the computer you are posting with to this forum.
Unless you are using a webtv to post here?
If your not confident to do that. Then take the thing to a PC shop and have them copy the data to a CD for you.
--24.176.xxx.xx |
OT CMOS (by John [NJ]) Posted on: Oct 15, 2009 9:23 AM
Message:
The old drive is IDE (know this from the age of your PC). Newer high end PC's may not have IDE slots in their motherboards, only PCI and SATA. If that's the case, simply "plugging" your old drive into a new PC as a slave drive may not work too well if there are no IDE slots on the motherboard.
John
New Jersey --192.4.xxx.xxx |
OT CMOS (by John [NJ]) Posted on: Oct 15, 2009 9:27 AM
Message:
Me again... I also heard rumor that if the motherboard battery dies, you may not be able to bootup with a new replacement battery because once the battery dies, it can affect settings in the PC's BIOS. Again, I heard this as a rumor and I did not google to confirm.
John
New Jersey --192.4.xxx.xxx |
OT CMOS (by Dave [CA]) Posted on: Oct 15, 2009 12:31 PM
Message:
When the battery dies, the BIOS will default back to it's factory settings, so any changes you made in the BIOS setup will be lost, but it should still boot.
If you have an old battery, it will likely be a small rectangle with black and red wires that plug into the motherboard via a connector. If you can find that, you can probably search the internet for a replacement.
It you have a new battery, it's a silver disc about the size of a quarter. Again, look on the internet for a replacement.
Otherwise, as already suggested, plug the drive into another computer. One thing you will need to do though is change the jumper on the drive from master to slave since the drive in the other computer will already be configured as the master. Once that system boots up you should be able to see the old drive and copy anything you want from it. --192.55.xx.xx |
OT CMOS (by Reid [KS]) Posted on: Oct 15, 2009 2:46 PM
Message:
Since after thinking about it, all I need is the info on the HDD . I don't know why The computer shops didn't mention that to me ? Oh Well I'll have someone copy off the info onto a CD as recommended. The poor old 486 / 90 Mhz has served it's purpose . The less I actually do to it the better as i always seem to find new and novel ways to screw things up. I can probably get either my Son or grandkids to copy these Hard drives . Thanks for everyones help and ideas . --69.155.xx.xx |
OT CMOS (by John... [MI]) Posted on: Oct 16, 2009 6:10 AM
Message:
If you have any trouble finding someone to do it, just let me know and I'd be happy to do it for you -- copy it onto CDs or, more likely depending on the drive size, a USB key or something.
- John...
--64.25.xxx.xxx |
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