The HP/Compaq Business Notebook nx7300 uses DDR2 SODIMM PC2-4200 533MHz, 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 SODIMM PC2-4200 533MHz, PC2-5300 667MHz
Base Memory 512MB (Removable) or 1GB (Removable)
Upgrade Slots 2 Socket(s)
Maximum Memory 2GB using the 940GML chipset 4GB using the 945GM chipset
Maximum Module Size 2GB
CPU & Chipset Intel Celeron M / Intel 940GML Intel Core 2 Duo / Intel 945GM Intel Core Duo / Intel 945GM
Bus Architecture PC Card; USB 2.0/3.x Type-A
Notes Important: MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. Per HP, using the 945GM chipset, either DDR2-533 (KTH-ZD8000A/xx) or DDR2-667 (KTH-ZD8000B/xx) memory may be used. These are compatible, however when mixed they default to 533MHz. Systems shipped with the 940GML chipset support both DDR2-533 and DDR2-667 memory, however, when DDR2-667 is installed it will only operate at 533MHz. 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
  • GB510US
  • GB679US
  • GB844ES
  • GB845ES
  • GB847ES
  • GB848ES
  • GB849ES
  • GB850ES
  • GB851ES
  • GB852ES
  • GB853ES
  • GB854ES
  • GB855ES
  • GB903EA
  • GB904EA
  • GB904ET
  • GB905ET
  • GB906EA
  • GB907EA
  • GB907ET
  • GB909ES
  • GB910ES
  • GB915ES
  • GB917ES
  • GB918ET
  • GB929ES
  • GB930ES
  • GB931ES
  • GB934ES
  • GB935ES
  • GB939ES
  • GB946ES
  • GC002ES
  • GC006ES
  • GC035ES
  • GC057ES
  • GC064ES
  • GC081ES
  • GC084ES
  • GC085ES
  • GC086ES
  • GC088ES
  • GC090ES
  • GC094ES
  • GC097ES
  • GE737PA
  • GE738PA
  • GE739PA
  • GF146US
  • GF147US
  • GF157US
  • GG273UC
  • GM665PC
  • GP795US
  • GR615ES
  • GR61
Part Number 62.2C6
533MHz 200pin CL6
Backordered
$4.99
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Part Number 63.2C6
667MHz 200pin CL6
In Stock
$4.99
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Part Number 62.5C6
533MHz 200pin CL6
In Stock
$6.99
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Part Number 63.5C6
667MHz 200pin CL6
In Stock
$6.99
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Part Number 62.2C6H
533MHz 200pin CL6
Backordered
$7.99
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Part Number 621C6
533MHz 200pin CL6
In Stock
$7.99
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Part Number 63.2C6H
667MHz 200pin CL6
In Stock
$7.99
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Part Number 631C6
667MHz 200pin CL6
In Stock
$7.99
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Part Number 62.5C6H
533MHz 200pin CL6
In Stock
$9.99
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Part Number 63.5C6H
667MHz 200pin CL6
In Stock
$9.99
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Part Number 62.5C6-2
533MHz 200pin CL6
In Stock
$12.99
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Part Number 621C6H
533MHz 200pin CL6
In Stock
$12.99
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Part Number 63.5C6-2
667MHz 200pin CL6
In Stock
$12.99
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Part Number 631C6H
667MHz 200pin CL6
In Stock
$12.99
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Part Number 621C6-2
533MHz 200pin CL6
In Stock
$15.99
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Part Number 622C6
533MHz 200pin CL6
In Stock
$15.99
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Part Number 631C5-2
667MHz 200pin CL5
In Stock
$15.99
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Part Number 631C6-2
667MHz 200pin CL6
In Stock
$15.99
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Part Number 632C6
667MHz 200pin CL6
In Stock
$15.99
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Part Number 62.5C6-2H
533MHz 200pin CL6
In Stock
$19.99
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Part Number 63.5C6-2H
667MHz 200pin CL6
In Stock
$19.99
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Part Number 621C6-2H
533MHz 200pin CL6
In Stock
$24.99
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Part Number 622C6H
533MHz 200pin CL6
In Stock
$24.99
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Part Number 631C5-2H
667MHz 200pin CL5
In Stock
$24.99
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Part Number 631C6-2H
667MHz 200pin CL6
In Stock
$24.99
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Part Number 632C6H
667MHz 200pin CL6
In Stock
$24.99
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Part Number 622C6-2
533MHz 200pin CL6
In Stock
$30.99
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Part Number 632C5-2
667MHz 200pin CL5
In Stock
$30.99
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Part Number 632C6-2
667MHz 200pin CL6
In Stock
$30.99
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Part Number 622C6-2H
533MHz 200pin CL6
In Stock
$49.99
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Part Number 632C5-2H
667MHz 200pin CL5
In Stock
$49.99
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Part Number 632C6-2H
667MHz 200pin CL6
In Stock
$49.99
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Part Number SSD/512G
Call to Order
$929.99
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Part Number SSD/512GH
Call to Order
$1499.99
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Part Number 622C6-2
533MHz 200pin CL6
In Stock
$30.99
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Part Number 632C5-2
667MHz 200pin CL5
In Stock
$30.99
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Part Number 632C6-2
667MHz 200pin CL6
In Stock
$30.99
View Product
Part Number 622C6-2H
533MHz 200pin CL6
In Stock
$49.99
View Product
Part Number 632C5-2H
667MHz 200pin CL5
In Stock
$49.99
View Product
Part Number 632C6-2H
667MHz 200pin CL6
In Stock
$49.99
View Product
Part Number 621C6-2
533MHz 200pin CL6
In Stock
$15.99
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Part Number 622C6
533MHz 200pin CL6
In Stock
$15.99
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Part Number 631C5-2
667MHz 200pin CL5
In Stock
$15.99
View Product
Part Number 631C6-2
667MHz 200pin CL6
In Stock
$15.99
View Product
Part Number 632C6
667MHz 200pin CL6
In Stock
$15.99
View Product
Part Number 621C6-2H
533MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 622C6H
533MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 631C5-2H
667MHz 200pin CL5
In Stock
$24.99
View Product
Part Number 631C6-2H
667MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 632C6H
667MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 621C6
533MHz 200pin CL6
In Stock
$7.99
View Product
Part Number 631C6
667MHz 200pin CL6
In Stock
$7.99
View Product
Part Number 62.5C6-2
533MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 621C6H
533MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 63.5C6-2
667MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 631C6H
667MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 62.5C6-2H
533MHz 200pin CL6
In Stock
$19.99
View Product
Part Number 63.5C6-2H
667MHz 200pin CL6
In Stock
$19.99
View Product
Part Number 62.5C6
533MHz 200pin CL6
In Stock
$6.99
View Product
Part Number 63.5C6
667MHz 200pin CL6
In Stock
$6.99
View Product
Part Number 62.5C6H
533MHz 200pin CL6
In Stock
$9.99
View Product
Part Number 63.5C6H
667MHz 200pin CL6
In Stock
$9.99
View Product
Part Number 62.2C6
533MHz 200pin CL6
Backordered
$4.99
View Product
Part Number 63.2C6
667MHz 200pin CL6
In Stock
$4.99
View Product
Part Number 62.2C6H
533MHz 200pin CL6
Backordered
$7.99
View Product
Part Number 63.2C6H
667MHz 200pin CL6
In Stock
$7.99
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-ZD8000A/1G 1GB DDR2 PC2-4200 533MHz SODIMM Kingston 621C6
KTH-ZD8000A/2G 2GB DDR2 PC2-4200 533MHz SODIMM Kingston 622C6
KTH-ZD8000B/1G 1GB DDR2 PC2-5300 667MHz SODIMM Kingston 631C6
KTH-ZD8000B/2G 2GB DDR2 PC2-5300 667MHz SODIMM Kingston 632C6
CT740578 2GB Kit of 2 1GB DDR2 PC2-5300 667MHz SODIMM Crucial 631C5-2
CT1760560 512GB Solid State Drive Crucial SSD/512G
CT649857 4GB Kit of 2 2GB DDR2 PC2-5300 667MHz SODIMM Crucial 632C5-2
CT1759311 512GB Solid State Drive Crucial SSD/512G