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System Voltage Low message on Optiplex 745
Optiplex 745. On post, we get a "System battery voltage is low". I have replaced the CR2032 battery twice now, the last time with a brand new battery directly from the store; however, the message continues to interrupt POST on every reboot. Of course, this does not seem to cause any other problems, and the battery seems to be properly holding the CMOS settings. I run my updates remotely on the computers for this client, and I have no way to get this one to come back up remotely when interrupted by a POST message.
I have already upgraded to the latest BIOS available through the Dell download site, to no avail.
speedstep
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April 10th, 2013 08:00
What Size MT Desktop SFF or USFF? Also what is the Date Code on the battery.
New is not always new. What country are you in? Did you try a Dated DL2032 instead?
Brian.Hart
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April 10th, 2013 08:00
Thank you. I will try that. It is a bit difficult to see jumpers on these compact machines because much of the hardware is mounted above the motherboard.
osprey4
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April 10th, 2013 08:00
Write down the current BIOS settings and reset the CMOS. Then re-enter your original settings and see if that fixes the problem.
osprey4
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April 10th, 2013 08:00
Hi Brian,
This error has been logged in the BIOS somewhere. There should be a place in the BIOS (apologies for my not looking it up) to ignore or delete BIOS log errors.
Brian.Hart
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April 10th, 2013 08:00
Already done--at least if you mean Restore Defaults. That is, I already tried resetting BIOS to defaults, then re-entering my settings. Is there another way?
Brian.Hart
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April 10th, 2013 08:00
I already looked for that. I can clear the error log and have done so, but I see no way to ignore/bypass new errors (except for the standard option to ignore keyboard errors), and this error recurs on every boot.
osprey4
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April 10th, 2013 08:00
No, you have to turn the system off and jumper the RTC_RST pins on the motherboard.
osprey4
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April 10th, 2013 09:00
Brian,
In case it's helpful, here is your manual (PDF). Yes, unfortunately, the smaller units are much trickier to work on.