BIOS pins not grounded?
 

I have a version 7 PS2 and a DMS3 v2.0

My problem is that I cannot play PS2 backups, but everything else works fine.

I know that when you test for continuity with a multimeter between GND and a BIOS pin, I should get 0.000 (multimeter set to 2K ohm).

However, I get 0L (no connection) on all but the pin to which wire E is connected. When I touch GND (or the copper edge) and wire E, I get something like 0.985. I get the same reading if I touch wire E and any of the the spots circled in green below.

http://www.freemarie.com/devante/dms3_v7_bios.jpg

I've checked for a bridge near all of these spots, but found none.

I've also tested each connection bye touching the pin of the BIOS and the via of the wire on the DMS3. Each wire is connected.

Also, I've checked the connections on the other side of the motherboard exactly where the BIOS is and there doesn't seem to be a bridge there, either.

What could the problem be?

I reinstalled everything.

Here is the old install:
http://www.freemarie.com/devante/ps2_old_front_a.jpg
http://www.freemarie.com/devante/ps2_old_front_b.jpg

... and here's the new install:
http://www.freemarie.com/devante/ps2_new_front_a.jpg
http://www.freemarie.com/devante/ps2_new_front_b.jpg

Well, not reinstall persay, but I moved the wires around, resoldered every point
on the DMS3, resolder wires C through I, N, O, and P.

Guess what. Now it won't read anything at all.

No matter what kind of disc I put in, it just keeps saying "reading disc."

Wow.

were you getting interference with those 2 wires?
are you sure connection "D" is where it's supposed to be?
if there is no bridging then make sure there are no cold solder joints either (on cd/dvd controller connections as well).
check the chip itself maybe solder could have splashed the chip making a bridge or something.
If everything seems correct and it's not working I would remove the chip and clean the ps2 and make sure it works fine without the chip