The Sun Ultra 27 Workstation uses DDR3 DIMM ECC PC3-10600 1333MHz, ECC 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 DIMM ECC PC3-10600 1333MHz, ECC PC3-8500 1066MHz
Base Memory 1 GB (Removable) or 2 GB (Removable)
Upgrade Slots 6 Sockets
Maximum Memory 24 GB
Maximum Module Size 4GB
CPU & Chipset ~
Bus Architecture PCI Express; PCI-X
Notes MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode. We's DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is used and the number of modules installed. Intel Xeon 3500 Series processors support up to 3 channel of DDR3 memory. At least 1 DIMM must be installed into each channel for full performance. Please refer to the system manual for proper installation of DIMMs for Single, Dual, and Triple Channel configurations.
Part Number 81.5EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
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Part Number 811EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
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Part Number 82.5EC9
1333MHz 240pin CL9 ECC
In Stock
$18.99
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Part Number 821EC9
1333MHz 240pin CL9 ECC
In Stock
$18.99
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Part Number 812EC9
1066MHz 240pin CL9 ECC
In Stock
$26.99
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Part Number 822EC9
1333MHz 240pin CL9 ECC
In Stock
$26.99
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Part Number 81.5EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
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Part Number 811EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
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Part Number 82.5EC9H
1333MHz 240pin CL9 ECC
In Stock
$29.99
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Part Number 821EC9H
1333MHz 240pin CL9 ECC
In Stock
$29.99
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Part Number 811EC9-2
1066MHz 240pin CL9 ECC
In Stock
$37.99
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Part Number 821EC9-2
1333MHz 240pin CL9 ECC
In Stock
$37.99
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Part Number 812EC9H
1066MHz 240pin CL9 ECC
In Stock
$42.99
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Part Number 822EC9H
1333MHz 240pin CL9 ECC
In Stock
$42.99
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Part Number 814EC9
1066MHz 240pin CL9 ECC
In Stock
$46.99
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Part Number 824EC9
1333MHz 240pin CL9 ECC
In Stock
$46.99
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Part Number 812EC9-2
1066MHz 240pin CL9 ECC
In Stock
$52.99
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Part Number 822EC9-2
1333MHz 240pin CL9 ECC
In Stock
$52.99
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Part Number 811EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$59.99
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Part Number 821EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$59.99
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Part Number 811EC9-4
1066MHz 240pin CL9 ECC
In Stock
$74.99
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Part Number 814EC9H
1066MHz 240pin CL9 ECC
In Stock
$74.99
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Part Number 821EC9-4
1333MHz 240pin CL9 ECC
In Stock
$74.99
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Part Number 824EC9H
1333MHz 240pin CL9 ECC
In Stock
$74.99
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Part Number 812EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$84.99
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Part Number 822EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$84.99
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Part Number 814EC9-2
1066MHz 240pin CL9 ECC
In Stock
$92.99
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Part Number 824EC9-2
1333MHz 240pin CL9 ECC
In Stock
$92.99
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Part Number 812EC9-4
1066MHz 240pin CL9 ECC
In Stock
$105.99
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Part Number 822EC9-4
1333MHz 240pin CL9 ECC
In Stock
$105.99
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Part Number 811EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$119.99
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Part Number 821EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$119.99
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Part Number 814EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$149.99
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Part Number 824EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$149.99
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Part Number 812EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$169.99
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Part Number 822EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$169.99
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Part Number 814EC9-4
1066MHz 240pin CL9 ECC
In Stock
$185.99
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Part Number 824EC9-4
1333MHz 240pin CL9 ECC
In Stock
$185.99
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Part Number 814EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$299.99
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Part Number 824EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$299.99
View Product
Part Number 814EC9-4
1066MHz 240pin CL9 ECC
In Stock
$185.99
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Part Number 824EC9-4
1333MHz 240pin CL9 ECC
In Stock
$185.99
View Product
Part Number 814EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$299.99
View Product
Part Number 824EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$299.99
View Product
Part Number 814EC9-2
1066MHz 240pin CL9 ECC
In Stock
$92.99
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Part Number 824EC9-2
1333MHz 240pin CL9 ECC
In Stock
$92.99
View Product
Part Number 812EC9-4
1066MHz 240pin CL9 ECC
In Stock
$105.99
View Product
Part Number 822EC9-4
1333MHz 240pin CL9 ECC
In Stock
$105.99
View Product
Part Number 814EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$149.99
View Product
Part Number 824EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$149.99
View Product
Part Number 812EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$169.99
View Product
Part Number 822EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$169.99
View Product
Part Number 814EC9
1066MHz 240pin CL9 ECC
In Stock
$46.99
View Product
Part Number 824EC9
1333MHz 240pin CL9 ECC
In Stock
$46.99
View Product
Part Number 812EC9-2
1066MHz 240pin CL9 ECC
In Stock
$52.99
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Part Number 822EC9-2
1333MHz 240pin CL9 ECC
In Stock
$52.99
View Product
Part Number 811EC9-4
1066MHz 240pin CL9 ECC
In Stock
$74.99
View Product
Part Number 814EC9H
1066MHz 240pin CL9 ECC
In Stock
$74.99
View Product
Part Number 821EC9-4
1333MHz 240pin CL9 ECC
In Stock
$74.99
View Product
Part Number 824EC9H
1333MHz 240pin CL9 ECC
In Stock
$74.99
View Product
Part Number 812EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$84.99
View Product
Part Number 822EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$84.99
View Product
Part Number 811EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$119.99
View Product
Part Number 821EC9-4H
1333MHz 240pin CL9 ECC
In Stock
$119.99
View Product
Part Number 812EC9
1066MHz 240pin CL9 ECC
In Stock
$26.99
View Product
Part Number 822EC9
1333MHz 240pin CL9 ECC
In Stock
$26.99
View Product
Part Number 811EC9-2
1066MHz 240pin CL9 ECC
In Stock
$37.99
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Part Number 821EC9-2
1333MHz 240pin CL9 ECC
In Stock
$37.99
View Product
Part Number 812EC9H
1066MHz 240pin CL9 ECC
In Stock
$42.99
View Product
Part Number 822EC9H
1333MHz 240pin CL9 ECC
In Stock
$42.99
View Product
Part Number 811EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$59.99
View Product
Part Number 821EC9-2H
1333MHz 240pin CL9 ECC
In Stock
$59.99
View Product
Part Number 811EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 821EC9
1333MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 811EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
View Product
Part Number 821EC9H
1333MHz 240pin CL9 ECC
In Stock
$29.99
View Product
Part Number 81.5EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 82.5EC9
1333MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 81.5EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
View Product
Part Number 82.5EC9H
1333MHz 240pin CL9 ECC
In Stock
$29.99
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
KTS-SF313E/1G 1GB DDR3 PC3-10600 1333MHz ECC DIMM Kingston 821EC9
KTS-SF313E/2G 2GB DDR3 PC3-10600 1333MHz ECC DIMM Kingston 822EC9
KTS-SF313E/4G 4GB DDR3 PC3-10600 1333MHz ECC DIMM Kingston 824EC9
KTS-SF313EK3/6G 6GB Kit of 3 2GB DDR3 PC3-10600 1333MHz ECC DIMM Kingston 822EC9-3
CT961558 6GB Kit of 3 2GB DDR3 PC3-8500 1066MHz ECC DIMM Crucial 812EC7-3