The HP/Compaq Business Desktop dx6120 Slim Tower/Microtower uses DDR2 DIMM PC2-3200 400MHz, PC2-4200 533MHz, PC2-6400 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 DDR2 DIMM PC2-3200 400MHz, PC2-4200 533MHz, PC2-6400 800MHz
Base Memory 256MB (Removable) or 512MB (Removable) or 1GB (Removable) or 2GB (Removable)
Upgrade Slots 4 Socket(s)
Maximum Memory 4GB
Maximum Module Size 1GB
CPU & Chipset Intel Celeron D 2.66GHz/ Intel 915G Intel Pentium 4 2.8GHz/ Intel 915G Intel Pentium 4 3.2GHz/ Intel 915G
Bus Architecture PCI; PCI Express; USB 2.0/3.x Type-A
Notes Important: MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode. This system is configurable and may ship with either DDR2-400 (KTH-XW4200/xx) or DDR2-533 (KTH-XW4200AN/xx). Both memory types are compatible, however, when mixed they will default to DDR2-400. If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Models with "-b" are bundled.
Manufacturer Part Numbers
  • PL926AV
  • PL927AV
  • PR378PA
  • PR379A
  • PV011PA
  • PV014PA
  • PV017PA
  • PV018PA
  • PV019PA
  • PV020PA
  • PV021PA
  • PV022PA
  • PV023PA
  • PV024PA
  • PV025PA
  • PV026PA
  • PV027PA
  • PV028PA
  • PV029PA
  • PV030PA
  • PV031PA
  • PV032PA
  • PV033PA
  • PV034PA
  • PV035PA
  • PV036PA
  • PV045PA
  • PV046PA
  • PV047PA
  • PV048PA
  • PV049PA
  • PV050PA
  • PV051PA
  • PV052PA
Part Number 51.2C7
400MHz 240pin CL7
In Stock
$4.99
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Part Number 52.2C7
533MHz 240pin CL7
In Stock
$4.99
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Part Number 54.5C7
800MHz 240pin CL7
Unavailable
$5.99
View Product
Part Number 51.5C7
400MHz 240pin CL7
In Stock
$6.99
View Product
Part Number 52.5C7
533MHz 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 52.2C7H
533MHz 240pin CL7
In Stock
$7.99
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Part Number 521C7
533MHz 240pin CL7
In Stock
$7.99
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Part Number 541C6
800MHz 240pin CL6
In Stock
$7.99
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Part Number 541C7
800MHz 240pin CL7
In Stock
$7.99
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Part Number 54.5C7H
800MHz 240pin CL7
Unavailable
$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 52.2C7-2
533MHz 240pin CL7
In Stock
$9.99
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Part Number 52.5C7H
533MHz 240pin CL7
In Stock
$9.99
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Part Number 54.5C7-2
800MHz 240pin CL7
Unavailable
$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 52.5C7-2
533MHz 240pin CL7
In Stock
$12.99
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Part Number 521C7H
533MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 541C6H
800MHz 240pin CL6
In Stock
$12.99
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Part Number 541C7H
800MHz 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 52.2C7-2H
533MHz 240pin CL7
In Stock
$14.99
View Product
Part Number 511C7-2
400MHz 240pin CL7
In Stock
$15.99
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Part Number 521C7-2
533MHz 240pin CL7
In Stock
$15.99
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Part Number 541C7-2
800MHz 240pin CL7
In Stock
$15.99
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Part Number 54.5C7-2H
800MHz 240pin CL7
Unavailable
$17.99
View Product
Part Number 51.5C7-2H
400MHz 240pin CL7
In Stock
$19.99
View Product
Part Number 52.5C7-2H
533MHz 240pin CL7
In Stock
$19.99
View Product
Part Number 54.5C7-4
800MHz 240pin CL7
Unavailable
$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
View Product
Part Number 52.5C7-4
533MHz 240pin CL7
In Stock
$24.99
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Part Number 521C7-2H
533MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 541C7-2H
800MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 511C7-4
400MHz 240pin CL7
In Stock
$30.99
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Part Number 521C7-4
533MHz 240pin CL7
In Stock
$30.99
View Product
Part Number 541C7-4
800MHz 240pin CL7
In Stock
$30.99
View Product
Part Number 54.5C7-4H
800MHz 240pin CL7
Unavailable
$34.99
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Part Number 51.5C7-4H
400MHz 240pin CL7
In Stock
$39.99
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Part Number 52.5C7-4H
533MHz 240pin CL7
In Stock
$39.99
View Product
Part Number 54.2C7
800MHz 240pin CL7
In Stock
$46.99
View Product
Part Number 511C7-4H
400MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 521C7-4H
533MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 541C7-4H
800MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 54.2C7H
800MHz 240pin CL7
In Stock
$74.99
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Part Number 54.2C7-2
800MHz 240pin CL7
In Stock
$92.99
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Part Number 54.2C7-2H
800MHz 240pin CL7
In Stock
$149.99
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Part Number 511C7-4
400MHz 240pin CL7
In Stock
$30.99
View Product
Part Number 521C7-4
533MHz 240pin CL7
In Stock
$30.99
View Product
Part Number 541C7-4
800MHz 240pin CL7
In Stock
$30.99
View Product
Part Number 511C7-4H
400MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 521C7-4H
533MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 541C7-4H
800MHz 240pin CL7
In Stock
$49.99
View Product
Part Number 511C7-2
400MHz 240pin CL7
In Stock
$15.99
View Product
Part Number 521C7-2
533MHz 240pin CL7
In Stock
$15.99
View Product
Part Number 541C7-2
800MHz 240pin CL7
In Stock
$15.99
View Product
Part Number 54.5C7-4
800MHz 240pin CL7
Unavailable
$21.99
View Product
Part Number 51.5C7-4
400MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 511C7-2H
400MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 52.5C7-4
533MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 521C7-2H
533MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 541C7-2H
800MHz 240pin CL7
In Stock
$24.99
View Product
Part Number 54.5C7-4H
800MHz 240pin CL7
Unavailable
$34.99
View Product
Part Number 51.5C7-4H
400MHz 240pin CL7
In Stock
$39.99
View Product
Part Number 52.5C7-4H
533MHz 240pin CL7
In Stock
$39.99
View Product
Part Number 511C7
400MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 521C7
533MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 541C6
800MHz 240pin CL6
In Stock
$7.99
View Product
Part Number 541C7
800MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 54.5C7-2
800MHz 240pin CL7
Unavailable
$10.99
View Product
Part Number 51.5C7-2
400MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 511C7H
400MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 52.5C7-2
533MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 521C7H
533MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 541C6H
800MHz 240pin CL6
In Stock
$12.99
View Product
Part Number 541C7H
800MHz 240pin CL7
In Stock
$12.99
View Product
Part Number 54.5C7-2H
800MHz 240pin CL7
Unavailable
$17.99
View Product
Part Number 51.5C7-2H
400MHz 240pin CL7
In Stock
$19.99
View Product
Part Number 52.5C7-2H
533MHz 240pin CL7
In Stock
$19.99
View Product
Part Number 54.5C7
800MHz 240pin CL7
Unavailable
$5.99
View Product
Part Number 51.5C7
400MHz 240pin CL7
In Stock
$6.99
View Product
Part Number 52.5C7
533MHz 240pin CL7
In Stock
$6.99
View Product
Part Number 54.5C7H
800MHz 240pin CL7
Unavailable
$8.99
View Product
Part Number 51.2C7-2
400MHz 240pin CL7
In Stock
$9.99
View Product
Part Number 51.5C7H
400MHz 240pin CL7
In Stock
$9.99
View Product
Part Number 52.2C7-2
533MHz 240pin CL7
In Stock
$9.99
View Product
Part Number 52.5C7H
533MHz 240pin CL7
In Stock
$9.99
View Product
Part Number 51.2C7-2H
400MHz 240pin CL7
In Stock
$14.99
View Product
Part Number 52.2C7-2H
533MHz 240pin CL7
In Stock
$14.99
View Product
Part Number 54.2C7-2
800MHz 240pin CL7
In Stock
$92.99
View Product
Part Number 54.2C7-2H
800MHz 240pin CL7
In Stock
$149.99
View Product
Part Number 51.2C7
400MHz 240pin CL7
In Stock
$4.99
View Product
Part Number 52.2C7
533MHz 240pin CL7
In Stock
$4.99
View Product
Part Number 51.2C7H
400MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 52.2C7H
533MHz 240pin CL7
In Stock
$7.99
View Product
Part Number 54.2C7
800MHz 240pin CL7
In Stock
$46.99
View Product
Part Number 54.2C7H
800MHz 240pin CL7
In Stock
$74.99
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
KTH-XW4200/1G 1GB DDR2 PC2-3200 400MHz DIMM Kingston 511C7
KTH-XW4200AN/1G 1GB DDR2 PC2-4200 533MHz DIMM Kingston 521C7
KTH-XW4400C6/1G 1GB DDR2 PC2-6400 800MHz DIMM Kingston 541C6