The IBM/Lenovo Netfinity 5500 M10 8661-5xx uses SDRAM DIMM ECC REG PC100 100MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type SDRAM DIMM ECC REG PC100 100MHz
Base Memory 128MB (Removable) 256MB (Removable)
Upgrade Slots 4 Sockets
Maximum Memory 2GB
Maximum Module Size 512MB
CPU & Chipset Intel Pentium III Xeon 550 MHz
Bus Architecture ISA; PCI
Part Number 11.1ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$30.99
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Part Number 11.2ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$41.99
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Part Number 11.1ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$48.99
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Part Number 11.5ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$55.99
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Part Number 11.2ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$67.99
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Part Number 11.2ERC3-2
100MHz 144pin CL3 Registered ECC
In Stock
$83.99
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Part Number 11.5ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$89.99
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Part Number 11.5ERC3-2
100MHz 144pin CL3 Registered ECC
In Stock
$111.99
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Part Number 11.2ERC3-2H
100MHz 144pin CL3 Registered ECC
In Stock
$134.99
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Part Number 11/64mERC3
100MHz 144pin CL3 Registered ECC
Call to Order
$154.99
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Part Number 11.5ERC3-2H
100MHz 144pin CL3 Registered ECC
In Stock
$179.99
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Part Number 11/64mERC3H
100MHz 144pin CL3 Registered ECC
Call to Order
$249.99
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Part Number 11.5ERC3-2
100MHz 144pin CL3 Registered ECC
In Stock
$111.99
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Part Number 11.5ERC3-2H
100MHz 144pin CL3 Registered ECC
In Stock
$179.99
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Part Number 11.5ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$55.99
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Part Number 11.2ERC3-2
100MHz 144pin CL3 Registered ECC
In Stock
$83.99
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Part Number 11.5ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$89.99
View Product
Part Number 11.2ERC3-2H
100MHz 144pin CL3 Registered ECC
In Stock
$134.99
View Product
Part Number 11.2ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$41.99
View Product
Part Number 11.2ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$67.99
View Product
Part Number 11.1ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$30.99
View Product
Part Number 11.1ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$48.99
View Product
Part Number 11/64mERC3
100MHz 144pin CL3 Registered ECC
Call to Order
$154.99
View Product
Part Number 11/64mERC3H
100MHz 144pin CL3 Registered ECC
Call to Order
$249.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KTM7241/128 128MB Registered ECC Module Kingston
KTM7263/512 512MB SDRAM PC100 100MHz ECC REG SODIMM Kingston 11.5ERC3
KTM8022/256 256MB Registered ECC Module Kingston