Missing Jumper Pins Supermicro X10SAE

[PK232]

Recently I wanted to load the BIOS defaults on a Supermicro X10SAE MB and according to the manual the way you do that is short pins 1 and 2 of jumper JBT1. Unfortunately I could not find the pins for jumper JBT1. At first I thought I was not looking in the right area on the board but after looking back and forth between the manual and the board many times, I finally spotted on the board a place were it was marked JBT1 in small print. I was obviously looking in the right area but there was no jumper. I ended up removing the battery and shorting the contacts which worked but I have never run into missing jumper pins before. Anyone else seen this sort of thing?

 

[VirtualLarry]

It's not entirely uncommon, for 2-pin "Clear CMOS" jumper headers to ship without any sort of jumper on one of the pins, because it's too easy for it to fall off and get lost anyways.

 

[PK232]

It's not entirely uncommon, for 2-pin "Clear CMOS" jumper headers to ship without any sort of jumper on one of the pins, because it's too easy for it to fall off and get lost anyways.

This isn't a case of the removable jumper being missing but the actual pins that jumper goes on being missing. The only thing on the board is the silk screen printing "JBT1" which indicates where it should be located.

Edit: I have reviewed my first post, and I did say "no jumper" in the fourth sentence instead of "pins" like I did in the second sentence. My apologies for the confusion. It is definitely the pins that are missing.

 

[dave_the_nerd]

My Supermicro motherboard is the same way.

Dunno why they decided to do it that way, but they did. Must be cheaper or something. Or maybe just to keep people from accidentally resetting the CMOS? *shrug*

Anyway, a proper server is supposed to have months or years of uptime - you aren't tweaking CMOS settings every ten minutes and rebooting like you do on an enthusiast class system (which may have a CMOS reset button accessible externally. (I mean, holy crap, I wouldn't have foreseen that back when overclocking involved drawing conductive lines on your CPU and switching jumpers around because there weren't even BIOS controls.)

 

[LTC8K6]

Question
Can you tell me how to clear CMOS by short JBT1 on board?
Answer
There is two ways to clear the CMOS.

1st option.

1. Disconnect AC power cord and remove internal CMOS battery.
2. Short JBT1 solder pad with flat screw driver for 5 second.

2nd option.

1. Disconnect AC power cord and remove internal CMOS battery.
2. Use the coin battery short (+ and -) on battery terminal socket for 5 second.

http://www.supermicro.com/support/faqs/faq.cfm?faq=13103