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What is this switch?

Posted: Tue Aug 13, 2013 1:48 pm
by AwesomeNurd
Hi everyone, I received a joblot, there is a motherboard with a ram upgrade and in the bottom there is a switch soldered to 3 points, I wonder what is it? There is also a component that is missing, I took a picture of it. I also don't know what is it

Thank you

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Re: What is this switch?

Posted: Tue Aug 13, 2013 1:54 pm
by bigkidoz
Its either a switch to enable the write points for tsop flashing or switching banks on a 1mb bios, i notice only half of the ram upgrade was completed.

Re: What is this switch?

Posted: Tue Aug 13, 2013 2:10 pm
by AwesomeNurd
The ram chips are soldered on the top as well, I just didn't take a picture of it. Do you know what is the component missing? I want to try to desolder the same from the other mobo and solder it in the 128mb mobo and try to see if it works.

Re: What is this switch?

Posted: Tue Aug 13, 2013 4:08 pm
by Nextelhalo
Is it just me or are those two different boards i see? One has extra RAM soldered in and one does not................

Re: What is this switch?

Posted: Tue Aug 13, 2013 4:24 pm
by AwesomeNurd
Yeah these are two different motherboards, I just wanted to show the little component missing in one of them :)

Re: What is this switch?

Posted: Tue Aug 13, 2013 6:12 pm
by MrMajst3r
Your TSOP has been split. You can choose beetwen 2 bios-banks with this switch.

Re: What is this switch?

Posted: Wed Aug 14, 2013 4:03 am
by bigkidoz
AwesomeNurd wrote:The ram chips are soldered on the top as well, I just didn't take a picture of it. Do you know what is the component missing? I want to try to desolder the same from the other mobo and solder it in the 128mb mobo and try to see if it works.
Looks like a resistor or smd capacitor.