Which RAM slots should I use if the fourth DIMM slot is broken?
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MellowOrbit42
I have a Z890 Eagle WiFi 7 motherboard, and the fourth RAM slot appears to be damaged or nonfunctional. With only two memory sticks, should I install them in slots 1 and 2, or slots 2 and 3? I want to preserve dual-channel performance if possible.
Answers
Assuming you’re counting the slots from left to right, install the RAM in slots 1 and 3 rather than placing both next to each other. Check the motherboard labels as well, since the printed A1/B1 names matter more than the physical numbering.
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Use the first and third physical slots—usually labeled A1 and B1. That keeps the sticks in separate memory channels so dual-channel mode can work. Normally two sticks go in A2 and B2, but if the fourth slot is unusable, A1 and B1 are the sensible alternative.
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MellowOrbit42: Thanks, that clears it up. I checked the manual but found it confusing, so I’ll try slots 1 and 3.