8GB (4GBx2) Team High Performance Memory RAM Upgrade For Lenovo ThinkPad T400 Series T410 Series Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
OFFTEK 4GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad T400 (6475-xxx) (DDR3-8500) Laptop Memory 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
for Lenovo ThinkPad T400 T410 X201 c225 W700ds X200 Laptop RAM 8GB 2Rx8 PC3 10600S DDR3 1333MHz 4gb pc3 8500 1066 Memory|RAMs| - AliExpress
8GB Kit (2x4GB) Memory RAM Upgrade for Lenovo Thinkpad T400, T500 | eBay
Amazon.com: Lenovo T400 2765-T6U 14.1-Inch ThinkPad (2.26 GHz Intel Core 2 Duo P8400 Processor, 2 GB RAM, 160 GB 7200RPM Hard Drive, XP Pro) : Electronics
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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
Amazon.com: Lenovo Laptop Thinkpad T400 Notebook - Webcam - Core 2 Duo 2.26ghz - 4gb Ddr3 - 160gb - Dvdrw - Windows 7 Pro 64bit : Electronics
4GB DDR3 MEMORY RAM FOR Lenovo ThinkPad T400 6474 - Walmart.com
Lenovo Thinkpad T400 Core 2 Duo 2.53GHZ 3GB RAM 160GB WEBCAM BLUETOOTH 1440x900 | eBay
4GB DDR3 Memory RAM for Lenovo ThinkPad T400 2764 at Amazon.com
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
Lenovo ThinkPad Laptop Computer T400 14" Dual Core 2.0GHz 8GB 500GB Windows 10-64 Pro WiFi
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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
4GB (1x4GB) RAM Memory 4 Lenovo ThinkPad T400, T400S A30 817025010538 | eBay
Renewed Lenovo Thinkpad T400 Laptop C2D P8700 4GB RAM 500GB HDD Windows 10 14" 1600x900 Webcam With 30 Days Return, 90 Days Exchange Warranty
Lenovo ThinkPad T400 2768-Z31 14.1" Notebook - Intel - Core 2 Duo P8700 2.53GHz - Black - 2CN4341 - Shoplet.com
4GB Memory for Lenovo ThinkPad T400 7417, 7420, 7425, 7434-xxx DDR3 PC3-10600 1333MHz SODIMM RAM (PARTS-QUICK Brand) at Amazon.com
memory - Does Lenovo T400 can only work with up to 4GB RAM? - Super User
4GB RAM Memory Upgrade for Lenovo ThinkPad T400 (DDR3-1333MHz 204-pin SODIMM) at Amazon.com
Lenovo T400 memory, hard drive, and keyboard replacement - YouTube
8GB 2X4GB Memory RAM 4 Lenovo Thinkpad T400 2764, 2765, 2766, 2767, 2768, A35 | eBay
Memory RAM Upgrade for Lenovo ThinkPad T400 (2764) 4GB DDR3 SODIMM | eBay
Lenovo ThinkPad T400 laptop
Refurbished: Lenovo Thinkpad T400 - 14.1" Intel Core 2 Duo, 2.26 GHz, 2 GB Ram, 160 GB Hard Drive, Windows 7 Home 32-Bit - Newegg.com
Upgraded Lenovo Think Pad T400 14" Core 2 and 50 similar items
![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")