Memory RAM | 8GB Kit (2x4GB) - Lenovo ThinkPad T400 T-Series - (OEM-# Dual-Kit (2x 55Y3711, 55Y3717, 78Y7385, 89Y9225)) - 1333MHz, Unbuffered, 1,5V
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parts-quick 16GB Memory for Lenovo Flex 4 Series Compatible RAM - Walmart.com
PARTS ONLY Intel Thinkpad Lenovo R8-FDFTZ 6475-V57 fan usb plate ram dvdrw T400 | eBay
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Lenovo ThinkPad T400 Hardware and Software Upgrade 2021 - YouTube
8GB 2 X 4GB Memory Compatible for Lenovo ThinkPad T400, T400s, T410, T410i, T410s, T410si, T500, T510, T510i Laptop - DDR3 SODIMM 1066MHz PC3-8500 204 pin RAM (PARTS-QUICK Brand) at Amazon.com
8GB KIT (2 x 4GB) for IBM Lenovo ThinkPad T Series T400 T400s T500. SO-DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
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55Y3711 - Lenovo 1x 4GB DDR3-1333 SODIMM PC3-10600S Dual Rank x8 Replacement
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T400 2764, 2765, 2766, 2767, 2768 - A35 at Amazon.com
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Lenovo T400s Review change upgrade harddisk under LibreBoot / CoreBoot aspects 2018 – Unauthorized network card | dwaves.de
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![T400] Persistent 1-3-3-1 beep error after attempted 2GB --> 8GB RAM upgrade : r/thinkpad](https://preview.redd.it/kawtv99fdea81.png?width=882&format=png&auto=webp&s=bd96ecf7f27946dfa0d529f8c7fe555b4387f1ed "T400] Persistent 1-3-3-1 beep error after attempted 2GB --> 8GB RAM upgrade : r/thinkpad")
T400] Persistent 1-3-3-1 beep error after attempted 2GB --> 8GB RAM upgrade : r/thinkpad
8GB Kit (4GBx2) Upgrade for a Lenovo ThinkPad T400 Series System (DDR3 PC3-12800, NON-ECC, ) Memory Cards - Newegg.com
