Enable Second Ram Slot

Posted By admin On 30/07/22
  1. Ram Slot Order
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!
Enable ram slot 2Enable Second Ram SlotAgp slotRam slot types

Ram Slot Order

Jan 07, 2019 It worked. (Sometimes it didn't work. Then I changed slot. But, usually, it works after the second time. It's probably not the mobo's problem, because if i try to turn on the PC without RAM, it makes the continuous beep sound indicating the mobo is working properly. I think that it's either the PSU problem, or the RAM (probably the RAM). If only two of the blue memory slots are populated with matched DIMMs, dual-channel mode is enabled.