Acer Aspire G7750 Series Service Manual page 28

Parameter
Adjust DRAM Configuration
Adjust PCI-E Frequency
MCP PCI-Express
Frequency, MHz
Auto Disabled DIMM/PCI
Frequency
CPU Voltage (V)
DRAM Voltage (V)
NB Voltage (V)
SB Voltage (V)
NB Memory Reference
Voltage
DIMM Memory Reference
Voltage
Memory Terminator Voltage
CPU GTL Reference
Voltage
NB GTL Reference Voltage
FSB Terminator Voltage
Spread Spectrum
20
Description
Press Enter to access the Adjust DRAM Configuration submenu to override the memory's
Serial Presence Detect (SPD) settings by manually entering values for DRAM timings.
Sets the PCI Express clock frequency.
Sets the reference clock for the media and communications processor
(MCP) PCI Express
Enables or disables the system to remove (turn off) clocks from empty
DIMM and PCI slots to minimize electromagnetic interference (EMI).
Select processor voltage control.
Select memory voltage control to increase memory speed.
Select Northbridge (NB) chipset voltage control.
Select Southbridge (SB) chipset voltage control.
Set the NB memory reference voltage.
Set the memory reference voltage.
Set the memory terminator voltage.
Set the processor Gunning Transreceiver Logic (GTL) reference voltage to
provide headroom for overclocking quad-core processors.
Set the NB GTL reference voltage to provide the best level of stability on
the system.
Set the FSB terminator voltage.
Enables or disables the reduction of the mainboard's EMI.
Note: Remember to disable the Spread Spectrum feature if you are
overclocking. A slight jitter can introduce a temporary boost in clock speed
causing the overclocked processor to lock up.
Option
101 to 115
101 to 115
Enabled
Disabled
Auto
2.00
Min: 1.80v
Max: 2.80 V
Auto
Min: 1.200v
Max: 1.600 V
Auto
Min: 1.500v
Max: 2.000 V
Auto
Auto
Auto
Auto
Auto
Auto
Enabled
Disabled
Chapter 2