ASUS Crosshair IV Extreme
Motherboard, from 2011 2 hardware reports
Memory

Up to 16 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 4 slots, up to 16 GB seen working.
It takes DDR3-1600 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR3-1600 240-pin DIMM
- Most seen working
- 16 GB; one machine runs 16 GB
- Firmware says
- 6 GB maximum
- How sure
- 2 of 2 reports show this layout
See 4 GB DDR3-1600 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the ASUS Crosshair IV Extreme?
Yes. 4 slots, up to 16 GB seen working. It takes DDR3-1600 full-size sticks (DIMM).
What type of RAM does the ASUS Crosshair IV Extreme use?
DDR3-1600 full-size sticks (DIMM, 240-pin).
Is this my motherboard?
The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read Crosshair IV Extreme.