torossian :
please tell me if you know what model is the optiplex 790 sff 's motherboard. it has got an intel cpu i7 2600k
Why do you need it?
Dell Part Number - D28YY
Approximate specs
Chipset: Intel Q65 Express/ Supported Processors: Supports: Intel Core i7 2600, Intel Core i5 2500, Intel Core i5 2400, Intel Core i3 2120, Intel Core i3 2100, Intel Core i3 2130, Socket LGA1155
Supported Memory: 16 GB Max, DDR3 (4 Slots), 1 x DIMM1, 1 x DIMM2, 1 x DIMM3, 1 x DIMM4
Audio: Integrated Audio/Microphone/ Disk Drive Interface: SATA X 2/ Expansion: 1 x PCI-e 4x connector(SLOT2), 1 x PCI-e 16x connector(SLOT1)
Peripheral Interfaces: 1 x Display Port Connector, 1 x Serial Port, 1 x Mouse Connector, 1 x Keyboard Connector, Onboard Sound , Onboard VGA, 6 x USB Ports, 1 x Network LAN 10/100 Port Compatible Part Numbers: D28YY
Or from different source;
Manufacturer: Dell
Part Number: D28YY 0D28YY CN-0D28YY
Specifications:
Supported Processors
Intel Core i7 2600 / 3.40GHz, 8M, VT-x, VT-d, TXT (vPro), 95W
Intel Core i5 2500 / 3.30GHz, 6M, VT-x, VT-d, TXT (vPro), 95W
Intel Core i5 2400 / 3.10GHz, 6M, VT-x, VT-d, TXT (vPro), 95W
Intel Core i3 2120 / 3.30GHz, 3M, VT-x, 65W
Intel Core i3 2100 / 3.10GHz, 3M, VT-x, 65W
Intel Core i3 2130 / 3.40GHz, 3M, VT-x, 65W
Chipset
Intel Q65 Express Chipset
Memory:
PC3-10600 1333MHz DDR3
Minimum: 1GB
Maximum: 16GB
External Connectors
1 x RJ45 Gigabit Ethernet Connector
1 x Serial Connector
1 x Display Port
1 x VGA Connector
2 x Audio Ports
6 x USB 2.0 Connectors
2 x PS2 Connectors
Anything else I can help you with?