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Can X1-E Gen2 use DDR4-3200?

X1 / X1-Carbon (X1C) / X1-Extreme (X1E) Series/Generations
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Thinkpad2024
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Can X1-E Gen2 use DDR4-3200?

#1 Post by Thinkpad2024 » Mon Dec 01, 2025 5:27 pm

I'm planning to upgrade my X1 Extreme Gen2. Does anyone know if it can run at 3200MHz or should I just go with the DDR4-2666? While I'm at it, does anyone sell 48Mb RAM sticks? I'd like to upgrade to 64 and it seems like a waste to throw away the 16 I currently have.
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dcfbf
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Re: Can X1-E Gen2 use DDR4-3200?

#2 Post by dcfbf » Mon Dec 01, 2025 6:01 pm

The official number from Lenovo is that the X1 extreme gen 2 tops out at 2666Mhz.
Intel also says that 9th gen mobile processors only use up to 2666Mhz.

There are no 48GB DDR4 SO-DIMMs
IBM: 760ED, 600E, 570, T23, X30, T40, G41, T43 SATA, T43 UXGA, R52 IPS SXGA+
Lenovo: X41t, T60p UXGA, R60, T60, T61 4:3, T61, X61 SXGA+, T500, X301, E40, X201t, W520, X220, T430, W541, T450s, Yoga 460, P71, X1 Carbon 6, T480, T14 G3, X1 Carbon 12

Current Dailies: X1C6, P71
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