The Sun Ultra 27 uses DDR3 DIMM 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 PC3-8500 1066MHz
Base Memory
Upgrade Slots
Maximum Memory ~
Maximum Module Size
CPU & Chipset ~
Bus Architecture ~
Notes Important: MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode. Quantum'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
View Product
Part Number 811EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 812EC9
1066MHz 240pin CL9 ECC
In Stock
$26.99
View Product
Part Number 81.5EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
View Product
Part Number 811EC9H
1066MHz 240pin CL9 ECC
In Stock
$29.99
View Product
Part Number 811EC9-2
1066MHz 240pin CL9 ECC
In Stock
$37.99
View Product
Part Number 812EC9H
1066MHz 240pin CL9 ECC
In Stock
$42.99
View Product
Part Number 822ESC9
1333MHz 240pin CL9 Single Rank ECC
In Stock
$48.99
View Product
Part Number 812EC9-2
1066MHz 240pin CL9 ECC
In Stock
$52.99
View Product
Part Number 811EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$59.99
View Product
Part Number 811EC9-4
1066MHz 240pin CL9 ECC
In Stock
$74.99
View Product
Part Number 822ESC9H
1333MHz 240pin CL9 Single Rank ECC
In Stock
$77.99
View Product
Part Number 812EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$84.99
View Product
Part Number 812EC9-4
1066MHz 240pin CL9 ECC
In Stock
$105.99
View Product
Part Number 811EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$119.99
View Product
Part Number 812EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$169.99
View Product
Part Number 812EC9-4
1066MHz 240pin CL9 ECC
In Stock
$105.99
View Product
Part Number 812EC9-4H
1066MHz 240pin CL9 ECC
In Stock
$169.99
View Product
Part Number 812EC9-2
1066MHz 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 812EC9-2H
1066MHz 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 812EC9
1066MHz 240pin CL9 ECC
In Stock
$26.99
View Product
Part Number 811EC9-2
1066MHz 240pin CL9 ECC
In Stock
$37.99
View Product
Part Number 812EC9H
1066MHz 240pin CL9 ECC
In Stock
$42.99
View Product
Part Number 822ESC9
1333MHz 240pin CL9 Single Rank ECC
In Stock
$48.99
View Product
Part Number 811EC9-2H
1066MHz 240pin CL9 ECC
In Stock
$59.99
View Product
Part Number 822ESC9H
1333MHz 240pin CL9 Single Rank ECC
In Stock
$77.99
View Product
Part Number 811EC9
1066MHz 240pin CL9 ECC
In Stock
$18.99
View Product
Part Number 811EC9H
1066MHz 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 81.5EC9H
1066MHz 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
CT961558 6GB Kit of 3 2GB DDR3 PC3-8500 1066MHz ECC DIMM Crucial 812EC7-3
KTS-SF313ES/2G 2GB DDR3 PC3-10600 1333MHz ECC Single Rank DIMM Kingston 822ESC9
KTS-SF313ESK3/6G 6GB Kit of 3 2GB DDR3 PC3-10600 1333MHz ECC Single Rank DIMM Kingston 822ESC9-3