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#1
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trouble with old 486
Hi,
I just removed my old 486 from the closet to install debian. There was a message about a low battery and bios needing something (?) so I went in the bios and set the default and save the configuration. It seem it was a mistake... Now, when the computer boot, I have this message: cmos memory size mismatch run setup utility press f1 to resume when I press f1 i get: on board parity error addr (hex) = (0000: 000a) system halted and nothing when the computer boot, it write: press del to run setup I tryed but it dosen't work, I also tryed f1, with no luck The bios battery is welded, so I removed the bios chip (it is written AMI on it) and ground all the legs trying to reset it, but again without any luck. the computer is a clone, 486 33 mhz with 16 megs of ram. Thanks for any suggestion Frank |
#2
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On Sat, 17 Apr 2004 23:31:40 -0400, "Francois"
wrote: Hi, I just removed my old 486 from the closet to install debian. There was a message about a low battery and bios needing something (?) so I went in the bios and set the default and save the configuration. It seem it was a mistake... Now, when the computer boot, I have this message: cmos memory size mismatch run setup utility press f1 to resume needs a new battery. when I press f1 i get: on board parity error addr (hex) = (0000: 000a) system halted could also be a ram problem. and nothing when the computer boot, it write: press del to run setup I tryed but it dosen't work, I also tryed f1, with no luck The bios battery is welded, so I removed the bios chip (it is written AMI on it) and ground all the legs trying to reset it, but again without any luck. What do you mean by "Welded"? Is it a barrel type battery soldered on the board? If so, most of those were rechargeable batteries. Try leaving it on for a while. They also normally had a 4 pin connector close to the onboard battery for an external battery. The BIOS chip is not where the settings are stored (even though they are the bios setup settings). The CMOS ram was part of the chipset even back in the 486 days. Removing the BIOS EEPROM and shorting it will have no effect. the computer is a clone, 486 33 mhz with 16 megs of ram. Thanks for any suggestion Frank Don't spend too much time fighting with this old system. JT |
#3
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Don't spend too much time fighting with this old system. JT I just removed the ram and replace half of it and every thing is almost back to normal. Being 2:30 am, I will go to bed and try to find the bad ram tomorrow. My theory is that when I set the bios to default, wich certainly include parity check (and it was not included in the old setting) the bad ram became a trouble maker. Of course, this is just my theory, wich can be wrong since I don't know much.... I know I should not spend too much time on this 10$ computer but I used to run RH on a even older 386 that act as a firewall and cable modem router perfectly for years, and I'm pretty sure this one can do the same. Thanks for your input regards, Frank |
#4
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"Francois" wrote in message . .. Hi, I just removed my old 486 from the closet to install debian. There was a message about a low battery and bios needing something (?) so I went in the bios and set the default and save the configuration. all you have to do is unsolder the old battery... you can replace it with almost any battery that's 3 - 5 volts |
#5
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On Sun, 18 Apr 2004 05:00:24 -0500, "philo" wrote:
"Francois" wrote in message ... Hi, I just removed my old 486 from the closet to install debian. There was a message about a low battery and bios needing something (?) so I went in the bios and set the default and save the configuration. all you have to do is unsolder the old battery... you can replace it with almost any battery that's 3 - 5 volts Hey do those blow up with excessive heat? Well they are kind of dinky so I guess it wouldnt be that big of a pop. I was reading a bizarre story about a guy who was using his cell phone and it exploded. They think there might have been some cheapo counterfeit batteries in it. |
#6
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"Francois" typed:
"JT" typed: [...] Don't spend too much time fighting with this old system. [...] I know I should not spend too much time on this 10$ computer but I used to run RH on a even older 386 that act as a firewall and cable modem router perfectly for years, and I'm pretty sure this one can do the same. I wish I had an old system to experiment different distributions on. -- Ayaz Ahmed Khan - Powered by Mandrake Linux 9.0 |
#7
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On Sun, 18 Apr 2004 13:06:20 GMT, "
wrote: Hey do those blow up with excessive heat? Well they are kind of dinky so I guess it wouldnt be that big of a pop. They are sealed but if properly designed should vent, hopefully in a safe manner. Dinky may not be an issue though if it explodes in your eyes. Desoldering (done right/normally) won't heat it up enough to explode/vent it. I was reading a bizarre story about a guy who was using his cell phone and it exploded. They think there might have been some cheapo counterfeit batteries in it. .... don't stick hot exloding batteries next to your ear? There is a danger of rapid charging batteries without thermal cutoff or wrong charger but an overly charged battery has a lot more heat energy in it than you'd add by desoldering. |
#8
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"Ayaz Ahmed Khan" wrote in message newsan.2004.04.18.13.14.40.349110.2391@myrealbox .com... I wish I had an old system to experiment different distributions on. -- Ayaz Ahmed Khan - Powered by Mandrake Linux 9.0 I'm surprised you can't get something like this for free. Even the schools won't take a system that old (or a Pentium, Pentium II, Pentium PRO, or Pentium III). I just recently had to "resurrect" an old system that was having some problems w/o spending much money...I managed to buy a new MB, w/1.2GHz CPU, on board LAN, VIDEO, and SOUND and it came to a whopping $10 after rebate (it is a P3 class MB with a VIA processor). |
#9
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"George" typed:
"Ayaz Ahmed Khan" wrote in message newsan.2004.04.18.13.14.40.349110.2391@myrealbox .com... I wish I had an old system to experiment different distributions on. I'm surprised you can't get something like this for free. Even the schools won't take a system that old (or a Pentium, Pentium II, Pentium PRO, or Pentium III). I just recently had to "resurrect" an old system that was having some problems w/o spending much money...I managed to buy a new MB, w/1.2GHz CPU, on board LAN, VIDEO, and SOUND and it came to a whopping $10 after rebate (it is a P3 class MB with a VIA processor). Hardware is still moderately expensive here. I bought, for example, a 40-Gb Seagate's Barracuda hard-disk after grinding for over four years a small 4-Gb Fujitsu one, which has been booting two OSs on it. I bought my first PC, a Pentium-I, some seven years ago. Since then, I have upgraded it only once, and only to a Pentium-III, 700Mhz Celeron. I can do almost everything on this system and don't forsee an upgrade any sooner, nor require one. It boots three OSs: Mandrake 9.0, Slackware 9.0, and WinXP. I'll be removing the latter very soon, and will probably replace it with either Mandrake 9.2 or Debain. Anyway. Had to cast it off my chest. -- Ayaz Ahmed Khan - Powered by Mandrake Linux 9.0 |
#10
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Ayaz Ahmed Khan wrote:
"George" typed: "Ayaz Ahmed Khan" wrote in message newsan.2004.04.18.13.14.40.349110.2391@myrealbox .com... I wish I had an old system to experiment different distributions on. I'm surprised you can't get something like this for free. Even the schools won't take a system that old (or a Pentium, Pentium II, Pentium PRO, or Pentium III). I just recently had to "resurrect" an old system that was having some problems w/o spending much money...I managed to buy a new MB, w/1.2GHz CPU, on board LAN, VIDEO, and SOUND and it came to a whopping $10 after rebate (it is a P3 class MB with a VIA processor). Hardware is still moderately expensive here. I bought, for example, a 40-Gb Seagate's Barracuda hard-disk after grinding for over four years a small 4-Gb Fujitsu one, which has been booting two OSs on it. I bought my first PC, a Pentium-I, some seven years ago. Since then, I have upgraded it only once, and only to a Pentium-III, 700Mhz Celeron. I can do almost everything on this system and don't forsee an upgrade any sooner, nor require one. It boots three OSs: Mandrake 9.0, Slackware 9.0, and WinXP. I'll be removing the latter very soon, and will probably replace it with either Mandrake 9.2 or Debain. Isn't Mandrake 10 out? -- ~misfit~ |
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