Dell PowerEdge T20 Technical Guide      17 
 
Operating humidity  20% to 80% (non-
condensing) 
Operating system driver support  Microsoft Windows 7 32/64, 
Microsoft Windows 8 32/64 
Manageability  Wake On LAN (WOL) 
Pre-boot eXecution 
Environment (PXE) 2.1 
Management capabilities and alerting  Intel Standard Manageability 
Intel Core 2 Duo/Quad 
Processor with vPro 
Technology  
 
PCIe expansion 
PCIe connectivity is integrated with the processor. The T20 supports up to four PCIe slots. PCI card 
dimensions are outlined in Table 13. 
•  1x PCIe x16 slot 3.0 
•  1x PCIe x16 (wired x4) slot 2.0 
•  1x PCIe x1 slot 2.0 
•  1x PCI 32/33 slot 
Table 13.  PCI card dimensions 
Type 
supported 
Max height   Max length   Max wattage 
supported 
PCIe x16 3.0  3.3V/12V  4.38 in/11.13 cm 
full height 
 
6.6 in/16.77 cm 
half length 
 
75*  Graphics 
Gigabit NIC 
Parallel/Serial 
PCIe x1 2.0  3.3V/12V  4.38 in/11.13 cm 
full height 
 
6.6 in/16.77 cm 
half length 
 
25 
Gigabit NIC 
Parallel/
PCI  3.3V/5V/12V/-
12V 
4.38 in/11.13 cm 
full height 
 
6.6 in/16.77 cm 
half length 
 
25  1394  
PCIe x16 (x4) 2.0   3.3V/12V  4.38 in/11.13 cm 
full height 
 
6.6 in/16.77 cm 
half length 
 
25*  Graphics, 
Gigabit NIC 
Parallel/Serial