![T400] Persistent 1-3-3-1 beep error after attempted 2GB --> 8GB RAM upgrade : r/thinkpad](https://preview.redd.it/kor2ttzbdea81.png?width=846&format=png&auto=webp&s=351a2f9ea41024fdb2ffe4d17ae313f07b49bea1 "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
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Upgrading RAM on my Lenovo Thinkpad T410 – Luca Ferrari – Open Source advocate, human being
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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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Lenovo Thinkpad T Series T400 RAM Repair Guide | Installation Video
55Y3711 - Lenovo 1x 4GB DDR3-1333 SODIMM PC3-10600S Dual Rank x8 Replacement
Lenovo T400 memory, hard drive, and keyboard replacement - YouTube
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Lenovo ThinkPad T400 Repair - iFixit
