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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
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How to replace RAM in a laptop - replacing RAM in a Lenovo / IBM T400 laptop - YouTube
LENOVO THINKPAD T400 14.1 in – Intel Core2 Duo P8700, 2 GB DDR3 RAM, -None – ASA College: Florida
![T400] Persistent 1-3-3-1 beep error after attempted 2GB --> 8GB RAM upgrade : r/thinkpad](https://av.libreboot.org/t400/memory.jpg "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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4GB (1X4GB) Memory Ram Compatible with Lenovo Thinkpad T400 2766 By CMS A34 - Computer Memory Solutions
![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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Lenovo ThinkCentre P360 Ultra SFF, 2022, i7, 512GB SSD, 16GB RAM, Nvidia T400
