Question DDR3 for Rampage Extreme X48

Aug 19, 2020
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Hi there got this old 775 system with Rampage Extreme X48 board. I had all 4 slots with 4x2gb sticks with 8gb total.
One of sitcks had an issue and i am now running 6gb total.
Been thinking changing all sticks my question is can i use 4gb sticks instead of 2gb and leave 2 slots free for future upgrade?? Read about that with some tweaks this mobo can accept 12gb of RAM.
My idea is to use 2x4gb sticks and get 8gb and then try and use some more.
Any suggestions?? Thanks
 
4gb ddr2 modules were not only expensive (and are even more expensive today because of their rarity), but compatibility was very hit and miss because of the bleeding edge nature of the tech at the time.

I have some 4gb ddr2 modules that I've acquired over time (5+ years) and I've only got a handful of systems in which they work. These are not very plug and play, and you'll spend more for the memory than the replace the system with a complete lga1155 system. :oops:

But if you really want to know if it is possible, do a search for 16GB and 12GB and your motherboard and read, and you'll find out pretty quick what is and is not possible.
 
Aug 19, 2020
22
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hi there... about memory issue got on my Asus Rampage Extreme 775 mobo with 2xGB Gskill F3 12800CL7 1600 1.9v. Timing 7-7-7-18
As was advised i bought a Corsair KIT CML8GBX3M2A1600C9 1.5V Timings 9-9-9-24.
When i try to boot with just 1 sitck 4GB system won't boot... any advice??? i tried to clear CMOS... no sucess...
might these model be no match with board???
 
Aug 19, 2020
22
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is it possible that system fails to boot due to CPU?? i had a Core2Duo E8500 that i sold to replace by a Q9650 CPU witch i'am waiting to arrive but currently i'am with a old Intel Core E2200.
Can it be the CPU is somehow limiting the RAM?? I did try to put my old Gskill modules at 1400mhz and they only boot at 800mhz default speed i gues.
will try that boot with both gskill and corsair modules to see if it goes otherwise maybe will have to change to a higher voltage kit.... thanks! will keep in touch
 
Aug 19, 2020
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Well indeed but a q9650 still has more juice left....
Been reading about problably will need to exchange these vengeance for Corsair CMX8GX3M2A1600C9 XMS3. They work at 1.65. Think these vengeance at 1.5 wont work... tried booting with my gskill system boots but only recognizes gskill module...