2 Of 4 Slots Used
Regarding the different memory specs for the 2-memory-slot vs. 4-memory-slot W510 models, here's what the tabook says, with info specific to just the 2-slot model listed in blue, and info specific to the 4-slot model listed in red (info in black is common to both models): -Processor. ^^ is the task manager and showing 2 out of 4 slots. My other laptop is very similar but a year older and says 1 of 2 slots but i know where both slots are.
I've recently started having problems with my RAM memory (4 ram sticks of 2gb).
In task manager for win8, i see that memory says slots used 1 out of 4, which is currently 4 GB, but when i opened my laptop i can only see two. It also says slot 1: empty; slot 2: empty; slot 3: 4.0 GB,1333 MHz; slot 4: empty. I have 2 sticks of 2GB memory. When I use CPU-Z it has slots 1 - 4 showing. It is showing my memeory in slots 1 & 3. Does this mean I have 4 slots or is that for computers that have 4 slots. In looking at my options, I found that within the Performance tap of Task Manager that it shows my laptop having 'Slots used: 2 of 4' so I had hoped to use the other two ports for additional memory. However, according to the hardware specifications for my laptop, there are only 2 x SODIMM slots available for use.
It worked perfectly fine before. Got 4 of the exact same ram sticks, but now the motherboard refuses to read more than 2 of the 4 slots at a time. (used to have 8GB, now it only sees 4gb). I've tried every ram stick individually in every slot and they all work properly. I've tried every combo of 2 sticks in all possible slot combinations and all worked. However as soon as I add the third and fourth or just a third stick it completely ignores that stick.
2 Of 4 Slots Used To
I'm 100% sure the sticks are compatible as they have worked properly before. Interesting aspect is that I updated my BIOS shortly before it happened (Not sure if it happened right away after updating). I've already tried downgrading my bios but the flash utility won't let me saying my backup file from the bios is 'outdated'. The Ai Suite program also can't downgrade it because the 'Bios interface has been changed/altered'. Could it be that the newer bios has different default settings which might cause some of my sticks to stop working(even though they're all the same sticks)?
Slots Used 2 Of 4 But I Only Have 2 Slots
PS. Already tried the CMOS reset, Battery reset, reseating the sticks numerous times, even moving them around which shouldn't have effect cause they're all 100% alike, also tried switching Memory remap around. My motherboard is an ASUS P8H67-M, the Ai suite (program from the motherboard) does see the entire 8gb installed, CPU-Z sees 8 GB as well but bios sticks to 4gb installed)
2 Of 4 Slots Used Ram
Hope there's someone out there able to help.
Slots Used 2 Of 4
Regards,
Brian