EVGA Z77 FTW not seeing all ram?

[Zckl]

So bought a friends computer off of him and when I bought it, it saw all 32g's of RAM. However I needed to reset the bios and now it doesn't see all 32 gigs, only 16. I'm pretty sure it has something to do with a setting in the bios but im not to familiar with this stuff yet.

 

[Zckl]

Oh yeah, I was afraid that maybe one of the slots got fried so I tested all slots and they seem to be working so thats why I think its a setting in the bios.

 

[EVGA_Jaeson]

It could be the memory settings. What CPU are you using, what are the timings and frequency of the memory, and did you ever remove the CPU at any point before it stopped working?

 

[Zckl]

It could be the memory settings. What CPU are you using, what are the timings and frequency of the memory, and did you ever remove the CPU at any point before it stopped working?

Im using an 7-3770K. I never removed the CPU before it stopped working. Mem frequency is 1333 Mhz (according to bios)
and im not sure how to get the timings.

 

[EVGA_Jaeson]

The only setting that may cause half your memory to not show would be under Overclocking > Memory Configuration > Memory MISC Configuration. Make sure that both Channel A and Channel B DIMM Control are set to "Enabled Both DIMMS".

If that doesn't help, it could be some kind of grounding issue, you may want to try pulling the motherboard from the case and testing it on a piece of cardboard or a wooden surface. If it's still doing it outside the case, try testing each memory stick in the first red DIMM from the CPU to make sure all four sticks are recognizing.

 

[Zckl]

Thank you for your advice evga_jaeson, however I have somehow fixed it. On the bother board there is this switch, and switch says bios1, bios2, bio3. It was set at bios1 so I switched it to bios3 and for some reason it worked. The bios saw all 32g's. Windows also saw all 32g's but it said only 8 was usable. I think I fixed that by going to msconfig, the boot tab, then advanced options, then checked the box that said maximum and set it to the correct amount.