The Acer Altos 22000 Series 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)
Upgrade Slots 16 Sockets (4 banks of 4)
Maximum Memory 8GB with current products 16GB
Maximum Module Size 512MB
CPU & Chipset Intel Pentium III Xeon 550 MHz ServerWorks GC-HE Intel Pentium III Xeon 700 MHz ServerWorks GC-HE
Bus Architecture PCI
Part Number 11.1ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$30.99
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Part Number 11.1ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$30.99
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Part Number 11.2ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$41.99
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Part Number 11.2ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$41.99
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Part Number 11.1ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$48.99
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Part Number 11.1ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$48.99
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Part Number 11.5ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$55.99
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Part Number 11.5ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$55.99
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Part Number 11.2ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$67.99
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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 11.5ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$89.99
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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 11.5ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$55.99
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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 11.5ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$89.99
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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
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Part Number 11.2ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$41.99
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Part Number 11.2ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$41.99
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Part Number 11.2ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$67.99
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Part Number 11.2ERC3H
100MHz 144pin CL3 Registered ECC
In Stock
$67.99
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Part Number 11.1ERC2
100MHz 144pin CL2 Registered ECC
In Stock
$30.99
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Part Number 11.1ERC3
100MHz 144pin CL3 Registered ECC
In Stock
$30.99
View Product
Part Number 11.1ERC2H
100MHz 144pin CL2 Registered ECC
In Stock
$48.99
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
KVR100X72RC2/128 128MB SDRAM PC100 100MHz ECC REG SODIMM Kingston 11.1ERC2
KVR100X72RC2/256 256MB SDRAM PC100 100MHz ECC REG SODIMM Kingston 11.2ERC2
KVR100X72RC2/512 512MB SDRAM PC100 100MHz ECC REG SODIMM Kingston 11.5ERC2