The MSI CX640DX uses DDR3 SODIMM PC3-10600 1333MHz, PC3-8500 1066MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type DDR3 SODIMM PC3-10600 1333MHz, PC3-8500 1066MHz
Base Memory 4 GB (Removable)
Upgrade Slots 2 Socket(s)
Maximum Memory 8 GB
Maximum Module Size 4GB
CPU & Chipset ~
Bus Architecture HyperX - Supported; SSD - SATA 2.5-inch 9.5mm; USB 2.0/3.x Type-A
Notes MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. With 32-bit operating systems, if 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.
Manufacturer Part Numbers
  • N/A
Part Number 71.5C9
1066MHz 204pin CL9
Call to Order
$10.99
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Part Number 72.5C9
1333MHz 204pin CL9
Call to Order
$10.99
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Part Number 711C7
1066MHz 204pin CL7
In Stock
$12.99
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Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
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Part Number 721C9
1333MHz 204pin CL9
In Stock
$12.99
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Part Number 712C7
1066MHz 204pin CL7
In Stock
$15.99
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Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
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Part Number 722C9
1333MHz 204pin CL9
In Stock
$15.99
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Part Number 71.5C9H
1066MHz 204pin CL9
Call to Order
$17.99
View Product
Part Number 72.5C9H
1333MHz 204pin CL9
Call to Order
$17.99
View Product
Part Number 711C7H
1066MHz 204pin CL7
In Stock
$19.99
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Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 721C9H
1333MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 714C7
1066MHz 204pin CL7
In Stock
$21.99
View Product
Part Number 714C9
1066MHz 204pin CL9
In Stock
$21.99
View Product
Part Number 724C9
1333MHz 204pin CL9
In Stock
$21.99
View Product
Part Number 711C9-2
1066MHz 204pin CL9
In Stock
$24.99
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Part Number 712C7H
1066MHz 204pin CL7
In Stock
$24.99
View Product
Part Number 712C9H
1066MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 721C9-2
1333MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 722C9H
1333MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 712C9-2
1066MHz 204pin CL9
In Stock
$30.99
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Part Number 722C9-2
1333MHz 204pin CL9
In Stock
$30.99
View Product
Part Number 714C7H
1066MHz 204pin CL7
In Stock
$34.99
View Product
Part Number 714C9H
1066MHz 204pin CL9
In Stock
$34.99
View Product
Part Number 724C9H
1333MHz 204pin CL9
In Stock
$34.99
View Product
Part Number 711C9-2H
1066MHz 204pin CL9
In Stock
$39.99
View Product
Part Number 721C9-2H
1333MHz 204pin CL9
In Stock
$39.99
View Product
Part Number 714C9-2
1066MHz 204pin CL9
In Stock
$43.99
View Product
Part Number 724C9-2
1333MHz 204pin CL9
In Stock
$43.99
View Product
Part Number 712C9-2H
1066MHz 204pin CL9
In Stock
$49.99
View Product
Part Number 722C9-2H
1333MHz 204pin CL9
In Stock
$49.99
View Product
Part Number 714C9-2H
1066MHz 204pin CL9
In Stock
$69.99
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Part Number 724C9-2H
1333MHz 204pin CL9
In Stock
$69.99
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Part Number SSD/60G
Call to Order
$92.99
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Part Number SSD/80G
Call to Order
$123.99
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Part Number SSD/60GH
Call to Order
$149.99
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Part Number SSD/80GH
Call to Order
$199.99
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Part Number SSD/120G
Call to Order
$247.99
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Part Number SSD/240G
Call to Order
$371.99
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Part Number SSD/120GH
Call to Order
$399.99
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Part Number SSD/240GH
Call to Order
$599.99
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Part Number 714C9-2
1066MHz 204pin CL9
In Stock
$43.99
View Product
Part Number 724C9-2
1333MHz 204pin CL9
In Stock
$43.99
View Product
Part Number 714C9-2H
1066MHz 204pin CL9
In Stock
$69.99
View Product
Part Number 724C9-2H
1333MHz 204pin CL9
In Stock
$69.99
View Product
Part Number 714C7
1066MHz 204pin CL7
In Stock
$21.99
View Product
Part Number 714C9
1066MHz 204pin CL9
In Stock
$21.99
View Product
Part Number 724C9
1333MHz 204pin CL9
In Stock
$21.99
View Product
Part Number 712C9-2
1066MHz 204pin CL9
In Stock
$30.99
View Product
Part Number 722C9-2
1333MHz 204pin CL9
In Stock
$30.99
View Product
Part Number 714C7H
1066MHz 204pin CL7
In Stock
$34.99
View Product
Part Number 714C9H
1066MHz 204pin CL9
In Stock
$34.99
View Product
Part Number 724C9H
1333MHz 204pin CL9
In Stock
$34.99
View Product
Part Number 712C9-2H
1066MHz 204pin CL9
In Stock
$49.99
View Product
Part Number 722C9-2H
1333MHz 204pin CL9
In Stock
$49.99
View Product
Part Number 712C7
1066MHz 204pin CL7
In Stock
$15.99
View Product
Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
View Product
Part Number 722C9
1333MHz 204pin CL9
In Stock
$15.99
View Product
Part Number 711C9-2
1066MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 712C7H
1066MHz 204pin CL7
In Stock
$24.99
View Product
Part Number 712C9H
1066MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 721C9-2
1333MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 722C9H
1333MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 711C9-2H
1066MHz 204pin CL9
In Stock
$39.99
View Product
Part Number 721C9-2H
1333MHz 204pin CL9
In Stock
$39.99
View Product
Part Number 711C7
1066MHz 204pin CL7
In Stock
$12.99
View Product
Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
View Product
Part Number 721C9
1333MHz 204pin CL9
In Stock
$12.99
View Product
Part Number 711C7H
1066MHz 204pin CL7
In Stock
$19.99
View Product
Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 721C9H
1333MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 71.5C9
1066MHz 204pin CL9
Call to Order
$10.99
View Product
Part Number 72.5C9
1333MHz 204pin CL9
Call to Order
$10.99
View Product
Part Number 71.5C9H
1066MHz 204pin CL9
Call to Order
$17.99
View Product
Part Number 72.5C9H
1333MHz 204pin CL9
Call to Order
$17.99
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
KVR1333D3S9/1G 1GB DDR3 PC3-10600 1333MHz SODIMM Kingston 721C9
KVR1333D3S8S9/2G 2GB DDR3 PC3-10600 1333MHz SODIMM Kingston 722C9
KVR1333D3S9/2G 2GB DDR3 PC3-10600 1333MHz SODIMM Kingston 722C9
KVR1066D3S7/4G 4GB DDR3 PC3-8500 1066MHz SODIMM Kingston 714C7
SVP200S3/60G 60GB Solid State Drive Kingston SSD/60G
SVP200S3B/60G 60GB Solid State Drive Kingston SSD/60G
SV200S3N7A/64G 64GB Kit of 2 32GB Solid State Drive Kingston SSD/32G-2
SVP200S3/60G 8523.51.0000, 5A992.C 60GB Solid State Drive Kingston SSD/60G
KVR1333D3S9/4G 4GB DDR3 PC3-10600 1333MHz SODIMM Kingston 724C9
SVP200S37A/60G 60GB Solid State Drive Kingston SSD/60G
SVP200S3B7A/60G 60GB Kit of 2 30GB Solid State Drive Kingston SSD/30G-2
SH103S3/480G 80GB Solid State Drive Kingston SSD/80G
SH103S3B/480G 480GB Kit of 2 240GB Solid State Drive Kingston SSD/240G-2
SKC300S37A/480G 80GB Solid State Drive Kingston SSD/80G
KVR13S9S8/4 4GB DDR3 PC3-10600 1333MHz SODIMM Kingston 724C9
KVR13S9S6/2 2GB DDR3 PC3-10600 1333MHz SODIMM Kingston 722C9
SV310S3B7A/960G 960GB SSDNow V310 SATA 3 2.5 (7mm height) Upgrade Bundle Kit w/Adapter Bundle Kit,SATA3 (6Gbps),V310 Series, SSD 2.5-inch 7mm Kingston
SKC300S3B7A/480G 480GB Kit of 2 240GB Solid State Drive Kingston SSD/240G-2
SHSS3B7A/960G 960GB HyperX SAVAGE SSD SATA 3 2.5 Bundle Kit Bundle Kit,HyperX Savage,SATA3 (6Gbps), SSD 2.5-inch 7mm Kingston
SKC310S37A/960G 60GB Solid State Drive Kingston SSD/60G
SKC310S3B7A/960G 960GB SSDNow KC310 SSD SATA 3 2.5 (7mm height) Upgrade Bundle Kit Bundle Kit,KC310 Series,SATA3 (6Gbps), SSD 2.5-inch 7mm Kingston
SHSS37A/960G 60GB Solid State Drive Kingston SSD/60G
SUV400S37/960G 60GB Solid State Drive Kingston SSD/60G
SUV500/1920G 1920GB SSDNOW UV500 SATA3 2.5" Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston
SUV500B/1920G 1920G SSDNOW UV500 SATA3 2.5" Bundle Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston
SHFR200/960G 960G HyperX Fury SHFR SATA3 2.5" RGB Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
KVR1066D3S7/2G 2GB DDR3 PC3-8500 1066MHz SODIMM Kingston 712C7
KVR1066D3S7/1G 1GB DDR3 PC3-8500 1066MHz SODIMM Kingston 711C7
SA400S37/960G 60GB Solid State Drive Kingston SSD/60G
SHFR200B/960G 960G HyperX Fury SHFR SATA3 2.5" RGB BUNDLE Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
SQ500S37/960G 60GB Solid State Drive Kingston SSD/60G
SUV500/960G 60GB Solid State Drive Kingston SSD/60G
SUV500B/960G 960G SSDNOW UV500 SATA3 2.5" Bundle Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston
SHFR200/480G 480G HyperX Fury SHFR SATA3 2.5" RGB Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
SA400S37/480G 80GB Solid State Drive Kingston SSD/80G
SHFR200B/480G 480G HyperX Fury SHFR SATA3 2.5" RGB BUNDLE Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
SQ500S37/480G 80GB Solid State Drive Kingston SSD/80G
SUV500/480G 80GB Solid State Drive Kingston SSD/80G
SUV500B/480G 480G SSDNOW UV500 SATA3 2.5" Bundle Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston
SHFR200/240G 240G HyperX Fury SHFR SATA3 2.5" RGB Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
SHFR200B/240G 240G HyperX Fury SHFR SATA3 2.5" RGB Bundle Available From Our Preferred Partners HyperX FURY, SSD 2.5-inch 9.5mm Kingston
SA400S37/240G 240GB Solid State Drive Kingston SSD/240G
SQ500S37/240G 240GB Solid State Drive Kingston SSD/240G
SUV500/240G 240GB Solid State Drive Kingston SSD/240G
SUV500B/240G 240G SSDNOW UV500 SATA3 2.5" Bundle Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston
SA400S37/120G 120GB Solid State Drive Kingston SSD/120G
SQ500S37/120G 120GB Solid State Drive Kingston SSD/120G
SUV500/120G 120GB Solid State Drive Kingston SSD/120G
SUV500B/120G 120G SSDNOW UV500 SATA3 2.5" Bundle Available From Our Preferred Partners UV500 Series, SSD 2.5-inch 7mm Kingston