help with multimeter

[setharial]

Hey guys I need a quick favor: some advice with a multimeter.

I'm about to prod and molest my ps2 looking for bridges and continuity between points.

This is a full feature multimeter with ohms, volts, amps (?), continuity, and diode setting. I know how to test for continuity and listen for the solid beep. But how can I test for bridges on the bios? Do I set a value on the multimeter on the ohms? and if so what value?

Thanks!

[jenko]

set it on ohms and the lowest possible coz it will be like 0.5 ohms if there is continuity

[setharial]

so if i touch two points that aren't suppose to have continuity and its around 0.5 ohms then there's a bridge?

[pegz]

yes, if there isn't a bridge it will read 1 on most meters,, if there is a bridge there will be hardly any resistance between the 2 points as jenko says around 0.5, u'll know if there is a bridge as it'll flash up on the meter as if you've touched the two probes together.

P

[setharial]

yea i'm reading around .7 - .8 on connections that i KNOW are good (3.3v) but aroudn the bios I'm getting some strange readings on points that aren't suppose to be connected. Sometimes it even jumps up high then back down to 0.7

[pegz]

make sure you are holding it staedy and that the points you are testing are clean of any burnt flux etc as you won't get a clear reading.

you want to be testing the pin you've soldered to and the pin on either side for bridges, no point testing from the point you've soldered back to the chip as unless you are the worst solderer in the world you won't have ****ed this up.

bridges etc are on the point you've soldered to on the mobo to points very close by

P

[setharial]

I noticed it jumps up REALLY high when i first touch the points, then it goes back down to .7

is this normal? it does it for every point i touch i'm checking continuity on