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Cmos cheksum bad

Hi guys. I have a problem with this desktop TOSHIBA EQUIUM. It's a P3, 650 MHz, 30gb, sdram 128 pc133. I think its using SAHARA 3810 mobo with intel chipset socket PGA 370.

The problem is, i can't format it. I'm trying to format it to win xp pro sp2. Everytime i switch it on there's this bip sound come out. I think its 3 times like a short bip bip and after a pause, another short bip. After that it says
i) CMOS setting wrong
ii) CMOS cheksum bad
iii) CMOS date is wrong.

Ok, this is what i've done. I've change the battery 5 times with maxell cr2030, panasonic cr2032, toshiba lithium battery cr2032 and KTS lithium battery. I know these batteries are working good. After i've changed the batteries, i went to the bios setting, setting back the time and the boot device order ( 1stboot cd rom, 2ndboot IDE-0 and third boot floopy ) but still can not boot. The message ii) CMOS cheksum bad, keep appearing without message no i) and iii). After that when i go again to the ''SETUP'', The boot device order have changed back to i) floopy, ii) IDE-0 and iii) cd rom.

Does anybody knows what is happenning actually..? Any kind of help would be apprieciated. I'm going to get some aspirin now :-)

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Try removing the Battery and shorting across the Battery terminals. there could be a cap that is charged and not allowing the cmos to reset.

This is probably a long shot
Rob

Posted on Dec 07, 2008

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From your problem description, it sounds like a corrupt BIOS and or a failing motherboard.

Due to the system age, I'd say cut your losses, salvage what drives are usable, and get a new (or newer) system

Posted on Dec 07, 2008

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