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RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkCentre M55 8810, 8811, 8814, 8816-xxx

RamCity 2GB CL6 240-pin DIMM

Part #. CCK • DDR2-800 / PC2-6400 • CL6 • 1.8V • 16-chip 128M x8 • more info

Buy new: $114.99 $89.99

18 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL4 240-pin DIMM

Part #. AMF • DDR2-533 / PC2-4200 • CL4 • 1.8V • 16-chip 128x8 • more info

Buy new: $107.99 $83.99

7 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 240-pin DIMM

Part #. KTM4982/2G • DDR2-667 / PC2-5300 • 1.8V • more info

Buy new: $141.99 $110.99

15 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 240-pin DIMM

Part #. KTM3211/2G • DDR2-533 / PC2-4200 • 1.8V • more info

Buy new: $135.99 $105.99

1 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB 240-pin DIMM

Part #. KTL2975C6/2G • DDR2-800 / PC2-6400 • 1.8V • more info

Buy new: $135.99 $105.99

28 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL5 240-pin DIMM

Part #. APM • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 128x8 • more info

Buy new: $114.99 $89.99

30 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 240-pin DIMM

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

Buy new: $110.99 $86.99

5 in Stock Free Shipping Guaranteed Compatible

Kingston 1GB 240-pin DIMM

Part #. KTL2975C6/1G • DDR2-800 / PC2-6400 • 1.8V • more info

Buy new: $98.99 $76.99

30 in Stock Free Shipping Guaranteed Compatible

RamCity 1GB CL4 240-pin DIMM

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

Buy new: $90.99 $70.99

21 in Stock Free Shipping Guaranteed Compatible

RamCity 1GB CL5 240-pin DIMM

Part #. AFB • DDR2-667 / PC2-5300 • CL5 • 1.8V • 16-chip 64x8 • more info

Buy new: $90.99 $70.99

13 in Stock Free Shipping Guaranteed Compatible

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:

Systems come standard with either DDR2-533 (KTM3211) or DDR2-667 (KTM4982) or DDR2-800 (KTL2975).
When mixing the KTM3211, KTM4982, or the KTL2975, all installed memory will run at the slowest installed memory speed.
AMD Sempron processors support DDR2-533 and DDR2-667 memory only.
DDR2-800 modules are not supported with this processor.
MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of dual channel mode.
If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).
Maximum configurations require a 64-bit operating system.

Standard Memory:

256MB (Removable) or
512MB (Removable) or
1GB (Removable)

Maximum Memory:

Expansion:

4 Sockets

Bus Architecture:

PCI Express; PCI-X

Mfr's System P/N's:

8810-xxx; 8811-xxx; 8814-xxx; 8816-xxx

Upgrade Path:

Virtually any configuration up to 8GB can be reached using any combination of 512MB, 1GB and 2GB modules.

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RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkCentre M55 8810, 8811, 8814, 8816-xxx