Bad Ram Slot Symptoms

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Bad Ram Slot Symptoms 4,8/5 4429 reviews
Hi Guys,
I've got an Asus P5B Deluxe motherboard. Today I tried adding some new RAM to take it from 4GB to 8GB. The board is about 6 years' old. I've never used the black RAM slots before, only the yellow ones (2x2GB in slots 1 and 3).
My system only sees 6GB, not 8GB. I've tried various combinations of the RAM, get the same result.
To check the new RAM wasn't defective, I tried it in slot 1, a known good slot. All 4 sticks of RAM worked in slot 1, so the RAM wasn't faulty.
All 4 sticks work in every slot except slot 2 (the first black RAM slot). If I put any stick in slot 2 - old or new - the PC is dead, it won't even boot to the BIOS.
So it looks like I have a defective RAM slot.
Does anyone know of any way to fix this? The board is too old to RMA. I've tried an emery board down the defective slot, and I've tried squirting WD40 down it. No improvement.
Does anyone have any other ideas on how to get that bad slot working?
Thanks!
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Bad Ram Slot Symptoms Blocked

Slot 2 seemed to be the problem.used flat piece of plastic like the guitar pick.it worked gigitty.was confused on whether the slot is bad, the ram stick, or both??reason for confusion there is that i tried the slot 2 ram in the 1 slot with slot 2 empty and no boot but slot 1 ram in 1 slot with slot 2 empty did work.now with both in. I recently upgraded my system means I upgraded all the motherboard and ram etc and graphics card was same then I faced freezes, display errors, crashes and choppy graphics+artifacts, in case I replaced my old HD 4650 with new HD 5570 and problem didn't resolve so i ran MemTest and got 18 errors in my one RAM stick and 2 errors in my other RAM sticks so please answer the following question:- 1.