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RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkCentre A51 8131, 8132, 8133, 8134

Part #. ABD • DDR2-400 / PC2-3200 • CL3 • 1.8V • 16-chip 64M x8 • more info

Buy new: $92.99 $72.99

Part #. KTM3211/1G • DDR2-533 / PC2-4200 • 1.8V • more info

Buy new: $108.99 $84.99

Part #. ADA • DDR2-533 / PC2-4200 • CL4 • Dual Rank • 1.8V • 16-chip 64x8 • more info

Buy new: $92.99 $72.99

Part #. KTM3219/1G • DDR-400 / PC3200 • 1.8V • more info

Buy new: $96.99 $75.99

We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.

Need some help installing your upgrade? See our guides and videos.

System Specifications

Comments:

MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of dual channel mode.
The BIOS addresses 4GB maximum, however, the system will only utilize 3GB.

Standard Memory:

Maximum Memory:

Expansion:

CPU/Chipset:

Bus Architecture:

Mfr's System P/N's:

Upgrade Path:

Virtually any configuration up to 4GB can be reached using any combination of 512MB and 1GB modules.