VOGONS

Anyway to boot a Biostar MB-8433UU with dead RTC?

Topic actions

First post, by Chadti99

Posted on 
User metadata
Rank Oldbie
Rank
Oldbie

Waiting for one of these at the moment. I hope it’s the right part.

https://www.ebay.com/itm/273322727960

But in the mean time, is there anyway to boot from a hard drive with a dead rtc battery? I can’t save the primary HDD settings unfortunately but was hoping there may be a method around this I’ve not thought of.

Reply 1 of 3, by Horun

Posted on 
User metadata
Rank l33t++
Rank
l33t++

Is the board like this one: Re: Biostar MB-8433UUD-A, his would boot but halt with dead battery. You could do surgery on the dead RTC and attach an external battery....Takes about 15mins..

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 3, by Chadti99

Posted on 
User metadata
Rank Oldbie
Rank
Oldbie
Horun wrote on 2020-08-27, 23:57:

Is the board like this one: Re: Biostar MB-8433UUD-A, his would boot but halt with dead battery. You could do surgery on the dead RTC and attach an external battery....Takes about 15mins..

Yep I can get past that but can’t keep any settings configured to boot. You think the default would be auto.

I might have to try the mod over the weekend.

Reply 3 of 3, by kalohimal

Posted on 
User metadata
Rank Member
Rank
Member

A picture of the RTC module modded with external coin battery. On this board the RTC is in such an awkward location where I have no place to put the battery holder. Hot gluing it on top of the RTC would block the ISA slot. 🤦‍♂️

The attachment rtc mod.jpg is no longer available

Slow down your CPU with CPUSPD for DOS retro gaming.

Go to top of page Go to top of page
Back to General Old Hardware
Close window
Close window