The HP/Compaq Media Center m1264n uses DDR2 DIMM PC2-3200 400MHz, PC2-5300 667MHz 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 DDR2 DIMM PC2-3200 400MHz, PC2-5300 667MHz
Base Memory 256 MB (Removable) or 512 MB (Removable) or 1 GB (Removable)
Upgrade Slots 4 Sockets
Maximum Memory 4 GB
Maximum Module Size 1GB
CPU & Chipset Intel Pentium 4 3 GHz Intel 915GV
Bus Architecture PCI; USB
Notes 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).
Manufacturer Part Numbers
  • PW784AA
Part Number 51.2C7
400MHz 240pin CL7
In Stock
$4.99
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Part Number 53.2C7
667MHz 240pin CL7
In Stock
$4.99
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Part Number 53.5C7
667MHz 240pin CL7
In Stock
$5.99
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Part Number 51.5C7
400MHz 240pin CL7
In Stock
$6.99
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Part Number 51.2C7H
400MHz 240pin CL7
In Stock
$7.99
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Part Number 511C7
400MHz 240pin CL7
In Stock
$7.99
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Part Number 53.2C7H
667MHz 240pin CL7
In Stock
$7.99
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Part Number 531C7
667MHz 240pin CL7
In Stock
$7.99
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Part Number 53.5C7H
667MHz 240pin CL7
In Stock
$8.99
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Part Number 51.2C7-2
400MHz 240pin CL7
In Stock
$9.99
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Part Number 51.5C7H
400MHz 240pin CL7
In Stock
$9.99
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Part Number 53.2C7-2
667MHz 240pin CL7
In Stock
$9.99
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Part Number 53.5C7-2
667MHz 240pin CL7
In Stock
$10.99
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Part Number 51.5C7-2
400MHz 240pin CL7
In Stock
$12.99
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Part Number 511C7H
400MHz 240pin CL7
In Stock
$12.99
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Part Number 531C7H
667MHz 240pin CL7
In Stock
$12.99
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Part Number 51.2C7-2H
400MHz 240pin CL7
In Stock
$14.99
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Part Number 53.2C7-2H
667MHz 240pin CL7
In Stock
$14.99
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Part Number 511C7-2
400MHz 240pin CL7
In Stock
$15.99
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Part Number 531C5-2
667MHz 240pin CL5
In Stock
$15.99
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Part Number 531C7-2
667MHz 240pin CL7
In Stock
$15.99
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Part Number 53.5C7-2H
667MHz 240pin CL7
In Stock
$17.99
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Part Number 51.5C7-2H
400MHz 240pin CL7
In Stock
$19.99
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Part Number 53.5C7-4
667MHz 240pin CL7
In Stock
$21.99
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Part Number 51.5C7-4
400MHz 240pin CL7
In Stock
$24.99
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Part Number 511C7-2H
400MHz 240pin CL7
In Stock
$24.99
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Part Number 531C5-2H
667MHz 240pin CL5
In Stock
$24.99
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Part Number 531C7-2H
667MHz 240pin CL7
In Stock
$24.99
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Part Number 511C7-4
400MHz 240pin CL7
In Stock
$30.99
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Part Number 531C7-4
667MHz 240pin CL7
In Stock
$30.99
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Part Number 53.5C7-4H
667MHz 240pin CL7
In Stock
$34.99
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Part Number 51.5C7-4H
400MHz 240pin CL7
In Stock
$39.99
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Part Number 511C7-4H
400MHz 240pin CL7
In Stock
$49.99
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Part Number 531C7-4H
667MHz 240pin CL7
In Stock
$49.99
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Part Number 511C7-4
400MHz 240pin CL7
In Stock
$30.99
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Part Number 531C7-4
667MHz 240pin CL7
In Stock
$30.99
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Part Number 511C7-4H
400MHz 240pin CL7
In Stock
$49.99
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Part Number 531C7-4H
667MHz 240pin CL7
In Stock
$49.99
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Part Number 511C7-2
400MHz 240pin CL7
In Stock
$15.99
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Part Number 531C5-2
667MHz 240pin CL5
In Stock
$15.99
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Part Number 531C7-2
667MHz 240pin CL7
In Stock
$15.99
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Part Number 53.5C7-4
667MHz 240pin CL7
In Stock
$21.99
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Part Number 51.5C7-4
400MHz 240pin CL7
In Stock
$24.99
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Part Number 511C7-2H
400MHz 240pin CL7
In Stock
$24.99
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Part Number 531C5-2H
667MHz 240pin CL5
In Stock
$24.99
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Part Number 531C7-2H
667MHz 240pin CL7
In Stock
$24.99
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Part Number 53.5C7-4H
667MHz 240pin CL7
In Stock
$34.99
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Part Number 51.5C7-4H
400MHz 240pin CL7
In Stock
$39.99
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Part Number 511C7
400MHz 240pin CL7
In Stock
$7.99
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Part Number 531C7
667MHz 240pin CL7
In Stock
$7.99
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Part Number 53.5C7-2
667MHz 240pin CL7
In Stock
$10.99
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Part Number 51.5C7-2
400MHz 240pin CL7
In Stock
$12.99
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Part Number 511C7H
400MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 531C7H
667MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 53.5C7-2H
667MHz 240pin CL7
In Stock
$17.99
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Part Number 51.5C7-2H
400MHz 240pin CL7
In Stock
$19.99
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Part Number 53.5C7
667MHz 240pin CL7
In Stock
$5.99
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Part Number 51.5C7
400MHz 240pin CL7
In Stock
$6.99
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Part Number 53.5C7H
667MHz 240pin CL7
In Stock
$8.99
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Part Number 51.2C7-2
400MHz 240pin CL7
In Stock
$9.99
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Part Number 51.5C7H
400MHz 240pin CL7
In Stock
$9.99
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Part Number 53.2C7-2
667MHz 240pin CL7
In Stock
$9.99
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Part Number 51.2C7-2H
400MHz 240pin CL7
In Stock
$14.99
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Part Number 53.2C7-2H
667MHz 240pin CL7
In Stock
$14.99
View Product
Part Number 51.2C7
400MHz 240pin CL7
In Stock
$4.99
View Product
Part Number 53.2C7
667MHz 240pin CL7
In Stock
$4.99
View Product
Part Number 51.2C7H
400MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 53.2C7H
667MHz 240pin CL7
In Stock
$7.99
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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
KTH-XW4200/1G 1GB DDR2 PC2-3200 400MHz DIMM Kingston 511C7
CT908267 2GB Kit of 2 1GB DDR2 PC2-5300 667MHz DIMM Crucial 531C5-2