The IBM/Lenovo IdeaPad Y430 (DDR3) 2781-8xx uses DDR3 SODIMM 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.

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Memory Type DDR3 SODIMM PC3-8500 1066MHz
Base Memory 512 MB (Removable) or 1 GB (Removable) or 2 GB (Removable)
Upgrade Slots 2 Sockets
Maximum Memory 3 GB with Windows Vista 32-bit 4 GB with Windows Vista 64-bit
Maximum Module Size 2GB
CPU & Chipset Intel Core 2 Duo Intel GM45 Intel Core 2 Duo Intel PM45 Intel Pentium Dual Core Intel GM45
Bus Architecture PC Card
Notes Notebooks with 32-bit operating systems, if 4GB is installed, the recognized memory may be reduced to 3GB or less (depending on system configuration and memory allocation).
Manufacturer Part Numbers
  • 2781-8xx
Part Number 71.5C9
1066MHz 204pin CL9
Call to Order
$10.99
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Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
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Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
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Part Number 71.5C9H
1066MHz 204pin CL9
Call to Order
$17.99
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Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
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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 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 712C9-2H
1066MHz 204pin CL9
In Stock
$49.99
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Part Number 712C9-2
1066MHz 204pin CL9
In Stock
$30.99
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Part Number 712C9-2H
1066MHz 204pin CL9
In Stock
$49.99
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Part Number 712C9
1066MHz 204pin CL9
In Stock
$15.99
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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 711C9-2H
1066MHz 204pin CL9
In Stock
$39.99
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Part Number 711C9
1066MHz 204pin CL9
In Stock
$12.99
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Part Number 711C9H
1066MHz 204pin CL9
In Stock
$19.99
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
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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
KTL-TP1066/1G 1GB DDR3 PC3-8500 1066MHz SODIMM Kingston 711C9
KTL-TP1066/2G 2GB DDR3 PC3-8500 1066MHz SODIMM Kingston 712C9
KTL-TP1066S/2G 2GB DDR3 PC3-8500 1066MHz SODIMM Kingston 712C9