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2GB RAM Memory for Lenovo ThinkPad X61 Tablet Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade - Walmart.com
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OFFTEK 2GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad X61 (7762-xxx) (DDR2-5300) Laptop Memory at Amazon.com
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CMS 8GB (2X4GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad X61 Notebook Ddr2 Pc6400 Sodimm - A41 at Amazon.com
![My X61 Thinkpad, which I use for school. T8100 CPU and 1.5 GB of RAM, running Ubuntu Mate 18.04. : r/thinkpad My X61 Thinkpad, which I use for school. T8100 CPU and 1.5 GB of RAM, running Ubuntu Mate 18.04. : r/thinkpad](https://i.redd.it/3a78zuycok331.jpg)
My X61 Thinkpad, which I use for school. T8100 CPU and 1.5 GB of RAM, running Ubuntu Mate 18.04. : r/thinkpad
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CMS 2GB (1X2GB) DDR2 5300 667MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Ibm Lenovo® Thinkpad X61 Notebook Ddr2 Pc5300 Sodimm - A38 System Specific Memory - Newegg.com
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