The IBM/Lenovo IntelliStation Z Pro 6866-B4x,B6x,B7x,C1x uses RDRAM RIMM ECC PC600 266MHz, ECC PC800 800MHz 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 RDRAM RIMM ECC PC600 266MHz, ECC PC800 800MHz
Base Memory 256MB (Removable) or 512MB (Removable)
Upgrade Slots 8 Sockets (4 banks of 2)
Maximum Memory 4GB
Maximum Module Size 512MB
CPU & Chipset Intel Pentium II Xeon 667 MHz Intel Pentium II Xeon 733 MHz Intel Pentium II Xeon 800 MHz
Bus Architecture AGP; ISA; PCI
Part Number 31.1EC3
266MHz 184pin CL3 ECC
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$30.99
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Part Number 31.2EC3
266MHz 184pin CL3 ECC
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$34.99
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Part Number 31.5EC3
266MHz 184pin CL3 ECC
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$40.99
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Part Number 31.1EC3H
266MHz 184pin CL3 ECC
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$49.99
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Part Number 31.2EC3H
266MHz 184pin CL3 ECC
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$54.99
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Part Number 31/64mEC3
266MHz 184pin CL3 ECC
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$54.99
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Part Number 31.5EC3H
266MHz 184pin CL3 ECC
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$64.99
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Part Number 31.2EC3-2
266MHz 184pin CL3 ECC
Call to Order
$68.99
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Part Number 3R3.1C3
27 184pin CL3
In Stock
$69.99
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Part Number 31.5EC3-2
266MHz 184pin CL3 ECC
Call to Order
$80.99
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Part Number 31/64mEC3H
266MHz 184pin CL3 ECC
Call to Order
$87.99
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Part Number 3R3.2C3
27 184pin CL3
In Stock
$92.99
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Part Number 31.2EC3-2H
266MHz 184pin CL3 ECC
Call to Order
$109.99
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Part Number 3R3.1C3H
27 184pin CL3
In Stock
$112.99
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Part Number 31.5EC3-2H
266MHz 184pin CL3 ECC
Call to Order
$129.99
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Part Number 31.2EC3-4
266MHz 184pin CL3 ECC
Call to Order
$136.99
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Part Number 3R3.2C3H
27 184pin CL3
In Stock
$149.99
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Part Number 3R1.2C3-2
266MHz 184pin CL3
In Stock
$185.99
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Part Number 3R3.2C3-2
27 184pin CL3
In Stock
$185.99
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Part Number 31.2EC3-4H
266MHz 184pin CL3 ECC
Call to Order
$219.99
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Part Number 3R3.5C3
27 184pin CL3
In Stock
$255.99
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Part Number 3R3/64mC3
27 184pin CL3
Call to Order
$288.99
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Part Number 3R1.2C3-2H
266MHz 184pin CL3
In Stock
$299.99
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Part Number 3R3.2C3-2H
27 184pin CL3
In Stock
$299.99
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Part Number 3R3.5C3H
27 184pin CL3
In Stock
$412.99
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Part Number 3R3/64mC3H
27 184pin CL3
Call to Order
$464.99
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Part Number 31.5EC3-2
266MHz 184pin CL3 ECC
Call to Order
$80.99
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Part Number 31.5EC3-2H
266MHz 184pin CL3 ECC
Call to Order
$129.99
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Part Number 31.2EC3-4
266MHz 184pin CL3 ECC
Call to Order
$136.99
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Part Number 31.2EC3-4H
266MHz 184pin CL3 ECC
Call to Order
$219.99
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Part Number 31.5EC3
266MHz 184pin CL3 ECC
Call to Order
$40.99
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Part Number 31.5EC3H
266MHz 184pin CL3 ECC
Call to Order
$64.99
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Part Number 31.2EC3-2
266MHz 184pin CL3 ECC
Call to Order
$68.99
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Part Number 31.2EC3-2H
266MHz 184pin CL3 ECC
Call to Order
$109.99
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Part Number 3R1.2C3-2
266MHz 184pin CL3
In Stock
$185.99
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Part Number 3R3.2C3-2
27 184pin CL3
In Stock
$185.99
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Part Number 3R3.5C3
27 184pin CL3
In Stock
$255.99
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Part Number 3R1.2C3-2H
266MHz 184pin CL3
In Stock
$299.99
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Part Number 3R3.2C3-2H
27 184pin CL3
In Stock
$299.99
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Part Number 3R3.5C3H
27 184pin CL3
In Stock
$412.99
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Part Number 31.2EC3
266MHz 184pin CL3 ECC
Call to Order
$34.99
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Part Number 31.2EC3H
266MHz 184pin CL3 ECC
Call to Order
$54.99
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Part Number 3R3.2C3
27 184pin CL3
In Stock
$92.99
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Part Number 3R3.2C3H
27 184pin CL3
In Stock
$149.99
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Part Number 31.1EC3
266MHz 184pin CL3 ECC
Call to Order
$30.99
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Part Number 31.1EC3H
266MHz 184pin CL3 ECC
Call to Order
$49.99
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Part Number 3R3.1C3
27 184pin CL3
In Stock
$69.99
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Part Number 3R3.1C3H
27 184pin CL3
In Stock
$112.99
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Part Number 31/64mEC3
266MHz 184pin CL3 ECC
Call to Order
$54.99
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Part Number 31/64mEC3H
266MHz 184pin CL3 ECC
Call to Order
$87.99
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Part Number 3R3/64mC3
27 184pin CL3
Call to Order
$288.99
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Part Number 3R3/64mC3H
27 184pin CL3
Call to Order
$464.99
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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
KTM-M600K2/128 128MB Kit of 2 64MB RDRAM PC600 266MHz DIMM Kingston 3R1/64mC3-2
KTM-M600K2/256 256MB Kit of 2 128MB RDRAM PC600 266MHz DIMM Kingston 3R1.1C3-2
KTM-M600K2/512 512MB Kit of 2 256MB RDRAM PC600 266MHz DIMM Kingston 3R1.2C3-2
KTM-M800E2/128 128MB Kit of 2 64MB RDRAM PC800 800MHz DIMM Kingston 3R3/64mC3-2
KTM-M800E2/256 256MB Kit of 2 128MB RDRAM PC800 800MHz DIMM Kingston 3R3.1C3-2
KTM-M800E2/512 512MB Kit of 2 256MB RDRAM PC800 800MHz DIMM Kingston 3R3.2C3-2