Defective Ram Slot
Given the specific slots, I assume it's one of the address signals that does not work properly, due to the DIMMs seeing it float, which can cause all sorts of fun things. It could be a CPU issue (oddly specific but possible), bent pin (surprisingly common) or less visible motherboard defect. Today, I doubled the RAM in my Gateway NV57h. And it didn’t cost me a dime. Well not today, anyway. TL;DR: The RAM wasn’t seated properly. Like for a long time. And I’m a geek who should know better. Try reseating your RAM. I’ve had this machine for almost 3 years (in itself a record, Continue reading 'The Fix to My Laptop’s Dead RAM Slot'. Then I tried testing one ram slot and one ram stick at a time. I discovered that one of the ram slots is malfunctioning because both ram sticks in slot A only allow the laptop to turn on while having both ram sticks in A and B and having ram stick 1 or 2 in slot B individually will not work.
Faulty Ram Slot Macbook Pro
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!