The Gateway MD7820u Notebook uses DDR2 SODIMM PC3-8500 1066MHz, 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 SODIMM PC3-8500 1066MHz, PC2-6400 800MHz
Base Memory 1GB (Removable) or 2GB (Removable)
Upgrade Slots 2 Sockets
Maximum Memory 4GB
Maximum Module Size 2GB
CPU & Chipset Intel Core 2 Duo 2 GHz Intel GM45
Bus Architecture USB
Part Number 64.5C6
800MHz 200pin CL6
In Stock
$6.99
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Part Number 641C6
800MHz 200pin CL6
In Stock
$7.99
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Part Number 64.5C6H
800MHz 200pin CL6
In Stock
$9.99
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Part Number 64.2C6
800MHz 200pin CL6
In Stock
$10.99
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Part Number 71.5C9
1066MHz 204pin CL9
Call to Order
$10.99
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Part Number 64.5C6-2
800MHz 200pin CL6
In Stock
$12.99
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Part Number 641C6H
800MHz 200pin CL6
In Stock
$12.99
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Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
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Part Number 641C6-2
800MHz 200pin CL6
In Stock
$15.99
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Part Number 642C6
800MHz 200pin CL6
In Stock
$15.99
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Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
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Part Number 64.2C6H
800MHz 200pin CL6
In Stock
$17.99
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Part Number 71.5C9H
1066MHz 204pin CL9
Call to Order
$17.99
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Part Number 64.5C6-2H
800MHz 200pin CL6
In Stock
$19.99
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Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
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Part Number 641C6-2H
800MHz 200pin CL6
In Stock
$24.99
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Part Number 642C6H
800MHz 200pin CL6
In Stock
$24.99
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Part Number 711C9-2
1066MHz 204pin CL9
In Stock
$24.99
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Part Number 712C9H
1066MHz 204pin CL9
In Stock
$24.99
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Part Number 642C6-2
800MHz 200pin CL6
In Stock
$30.99
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Part Number 712C9-2
1066MHz 204pin CL9
In Stock
$30.99
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Part Number 711C9-2H
1066MHz 204pin CL9
In Stock
$39.99
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Part Number 642C6-2H
800MHz 200pin CL6
In Stock
$49.99
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Part Number 712C9-2H
1066MHz 204pin CL9
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 642C6-2
800MHz 200pin CL6
In Stock
$30.99
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Part Number 712C9-2
1066MHz 204pin CL9
In Stock
$30.99
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Part Number 642C6-2H
800MHz 200pin CL6
In Stock
$49.99
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Part Number 712C9-2H
1066MHz 204pin CL9
In Stock
$49.99
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Part Number 641C6-2
800MHz 200pin CL6
In Stock
$15.99
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Part Number 642C6
800MHz 200pin CL6
In Stock
$15.99
View Product
Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
View Product
Part Number 641C6-2H
800MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 642C6H
800MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 711C9-2
1066MHz 204pin CL9
In Stock
$24.99
View Product
Part Number 712C9H
1066MHz 204pin CL9
In Stock
$24.99
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Part Number 711C9-2H
1066MHz 204pin CL9
In Stock
$39.99
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Part Number 641C6
800MHz 200pin CL6
In Stock
$7.99
View Product
Part Number 64.5C6-2
800MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 641C6H
800MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
View Product
Part Number 64.5C6-2H
800MHz 200pin CL6
In Stock
$19.99
View Product
Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 64.5C6
800MHz 200pin CL6
In Stock
$6.99
View Product
Part Number 64.5C6H
800MHz 200pin CL6
In Stock
$9.99
View Product
Part Number 71.5C9
1066MHz 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 64.2C6
800MHz 200pin CL6
In Stock
$10.99
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Part Number 64.2C6H
800MHz 200pin CL6
In Stock
$17.99
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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
M12864H70 1GB DDR3 PC3-8500 1066MHz SODIMM Kingston 711C9
M25664H70 2GB DDR3 PC3-8500 1066MHz SODIMM Kingston 712C9
CT1774895 4GB Kit of 2 2GB DDR2 PC2-6400 800MHz SODIMM Crucial 642C6-2
CT1761707 512GB Solid State Drive Crucial SSD/512G