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AMD 790GX User's Manual
3.6 JHPD Jumper & JDVI_HDMI Jumper
Pin No.
Definition
1-2
DVI
2-3
HDMI
JDVI_HDMI Jumper
This motherboard is built with the onboard DVI and HDMI
connectors, by default the primary output is through the
DVI port (pin#1-2), if you are going to connect the video
output to a HDMI device, please short this set of jumper to
pin #2-3.
Pin No.
Definition
1-2
Auto
2-3
DVI/HDMI EN
JHPD Jumper
While JHPD jumper is being shorted at pin#1-2, it will
automatically detect the HDMI or DVI device connected,
however, when certain DVI or HDMI devices can't be
detected, please short the jumper to pin #2-3 to manually
override the setting.
3.7 JHDT Jumper (for AMD OverDrive)
1-2
（
Default
）
Normal HDT
Default status
.
2-3
OVER_DRIVE Enable to allow the AMD
OverDrive feature to function.
JHDT Jumper
