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RAM for ThinkPad ThinkPad T61 (7658)

Model Years: 2007–2008

Max RAM: 8GBRAM Slots: 2RAM Type: DDR2 PC2-6400 800MHz
✓ RAM Upgradeable

Quick answer

Our data matches the ThinkPad ThinkPad T61 (7658) with Kingston 4GB DDR2-800 SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 4GB); OWC 4GB DDR2 800MHz SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 4GB); Kingston 2GB DDR2-800 SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 2GB), plus 1 more option listed below.

Supported memory profile: DDR2 PC2-6400, SO-DIMM, 800MHz, up to 8GB max, 2 slots.

Before buying, confirm your exact model number, memory generation, form factor (SO-DIMM), speed, and maximum supported capacity. Live eBay listings are shown below and may change.

Compatible RAM for the ThinkPad ThinkPad T61

Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Listings are updated daily.

Frequently Asked Questions

What RAM fits the ThinkPad ThinkPad T61 (7658)?

Based on our compatibility data, the ThinkPad ThinkPad T61 (7658) supports DDR2 PC2-6400, SO-DIMM, 800MHz, up to 8GB max, 2 slots. Matched modules include Kingston 4GB DDR2-800 SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 4GB); OWC 4GB DDR2 800MHz SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 4GB); Kingston 2GB DDR2-800 SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 2GB); Crucial 2GB DDR2-800 SODIMM (DDR2 PC2-6400, SO-DIMM, 800MHz, 2GB). Always confirm your exact model number before purchasing.

How do I verify RAM compatibility?

Check that your device label or manual shows 7658 (or ThinkPad T61). Confirm memory generation, form factor (SO-DIMM), speed, slot count, and maximum supported capacity match the specs on this page before ordering.

Can I mix RAM speeds or capacities?

Many systems run best with matched pairs (same capacity and speed). Mixing capacities or speeds may work but can force lower speeds or single-channel mode — check your OEM documentation.

Are these listings live and current?

Current eBay listings for compatible RAM modules are shown below. Prices and availability change frequently — verify listing details and seller ratings before you buy.

RAM Upgrade Guide for the ThinkPad ThinkPad T61

This device uses DDR2 PC2-6400 at 800MHz. Maximum supported capacity is 8GB.

This model has 2 RAM slots. Installing matched pairs (dual-channel) gives the best performance — use identical capacity modules in both slots.

Always power off and unplug your device before installing RAM. Ground yourself to avoid static discharge.