X79 dual-channel panel featuring uneven dimmers
X79 dual-channel panel featuring uneven dimmers
I recently acquired some used components and ended up with 48GB of RAM on an Asus P9X79 board. You have two 16GB modules and two 8GB modules, plus a Corsair 16GB kit and several Hyperx units. You're wondering the best way to set them up so performance stays optimal without reducing capacity unnecessarily. You’re not interested in cutting modules or risking instability. You’d prefer to fill all eight slots fully rather than removing parts. Your current layout is 1234-4321, with kits 1 and 3 using 8GB modules and kits 2 and 4 using 4GB modules. This arrangement seems to follow the manual instructions on page 25, but you feel it’s not quite correct.
This refers to a standard memory configuration often used in computing.
You mentioned having 48 gigabytes of RAM across two 16GB units and two 8GB units. I need to clarify the exact configuration—do you have four 8GB modules and four 4GB modules? If so, assign the 8GB sticks to the x1 slots and the 4GB sticks to the x2 slots, keeping in mind their speeds and capacities.
A1 holds 8GB units, A2 has 4GB, B1 contains 8GB, B2 is 4GB, C1 and C2 each have 8GB, D1 and D2 each have 4GB. Essentially, the blue slots are packed with 8GB modules while the black slots accommodate 4GB ones. This maintains balanced channel capacities, with capacity thresholds alternating between modules.
Check if any of the sticks are double-sided. If not, they’re all 4GB I/O, which is great—especially if the same RAM IC brand is used for all, to keep things compatible. Even with different revisions, they should work fine. If these are XMP RAMs, it’s best to skip them since you’ll need manual tuning, or risk issues with mixed ICs or voltage adjustments. Assuming they’re 4GB, but aiming for around 2400 or more, using as much VCCSA/VTTA as needed is wise, targeting a max core voltage of about 1.52V. For the RAM setup, balance all channels—consider putting 4GB and 8GB sticks together in one channel, as suggested. If the ICs come from different manufacturers or brands, match both types on the same channel depending on quantity. Samsung sticks should go in the inner slots because they’re generally the least reliable (~2400 max for 4GB vs 3200+ for some Hyundai models). Send photos of each burner with the kits installed separately. Once you identify the ICs or at least the manufacturers, organize them as shown on the screenshots to avoid mismatched channels and system instability.