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1-1.1   Special Features of Motherboard 

 

CPU Thermal Throttling Technology

 (The CPU Overheat Protection Technology)   

To prevent the increasing heat from damage of CPU or accidental shutdown while at 
high  workload,  the  CPU  Thermal  Throttling  Technology  will  force  CPU  to  enter 
partially  idle  mode  from  87.5%  to  12.5%  according  to  preset  CPU  operating 
temperature  in  BIOS  (from  40

  to  90

).  When  the  system  senses  the  CPU 

operating temperature reaching the preset value, the CPU operating bandwidth will be 
decreased  to  the  preset  idle  percentage  to  cool  down  the  processor.  When  at 
throttling mode the beeper sound can be optionally selected to indicate it is in working.   
 

CPU VID---

Shift to Higher Performance 

The CPU voltage can be adjusted for the precisely over-clocking of extra demanding 
computing performance. 

 
CPU  Vcore  Input/Output  Solid  Capacitors(

High-polymer  Solid  Electrolysis 

Aluminum Capacitors) 

CPU  Vcore  Input  and  Output  adopt  OC-CON  solid  capacitors.  The  working 
temperature  is  from  55  degrees  Centigrade  below  zero  to  125  degrees  Centigrade, 
Solid capacitors possess superior physical characteristics that can be while reducing 
the working temperature between 20 degrees Centigrade each time, intact extension 
10  times  of  effective  product  operation  lives,  at  not  rising  degrees  Centigrade  of 
working temperatures each time a relative one, life of product decline 10% only too. 
 

G.P.I Function 

G.P.I is a technology  with remarkable  power saving function:  when you are using a 
computer with G.P.I mold turned on, you save averagely 10.5W in power consumption 
in the whole process than normal computer without G.P.I technology. 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for 790GX

Page 1: ...ocessor Trademark Specifications and information contained in this documentation are furnished for information use only and are subject to change at any time without notice and should not be construed...

Page 2: ...ops attached on PCB or the surface of the components can bring about phenomena as minor as computer instability resulted from corrosion and oxidation from components and PCB or as major as short circu...

Page 3: ...1 3 ITEM CHECKLIST 3 1 4 LAYOUT DIAGRAM 4 CHAPTER 2 HARDWARE INSTALLATION 2 1 CPU INSTALLATION 5 2 2 INSTALL MEMORY 6 2 3 EXPANSION SLOTS 7 CHAPTER 3 CONNCTORS HEADERS JUMPERS SETTING 3 1 CONNECTORS...

Page 4: ...pport 10 100 1000Mbps data transfer rate And the embedded ALC662 6 channel HD Audio CODEC is fully compatible with Sound Blaster Pro standards that offer you with the home cinema quality and satisfyin...

Page 5: ...ge can be adjusted for the precisely over clocking of extra demanding computing performance CPU Vcore Input Output Solid Capacitors High polymer Solid Electrolysis Aluminum Capacitors CPU Vcore Input...

Page 6: ...Mastering ATA PIO DMA and the ULTRA DMA 33 66 100 133 functions that deliver the data transfer rate up to 133 MB s for 2 IDE Devices and for 6 Serial ATA2 ports providing 300 MB sec data transfer rate...

Page 7: ...r Led AMD 790GX Chipset Front Panel Audio Header K B USB Power On JP1 COM Header USB Connector PS 2 Mouse PS 2 Keyboard Line OUT MIC IN USB Connector CPUFAN SYS FAN1 PCI Express2 0 x16 16 lane VGA Con...

Page 8: ...s the processor s heat sink and CPU cooling FAN is working correctly otherwise it may cause the processor and motherboard overheat and damage you may install an auxiliary cooling FAN if necessary To i...

Page 9: ...hannel function Dual channel Limited 1 Dual channel function only supports when 2 DIMM Modules plug in both DIMM1 DIMM2 2 Memory modules plugged in DIMM1 DIMM2 must be of the same type same size and s...

Page 10: ...ive direction and up to 16Gbyte sec concurrent bandwidth at full speed Fully compliant to the PCI Express Base Specification revision2 0 support PCI Express VGA card and other PCI Express device Two 3...

Page 11: ...er plugs If you intend to use a PSU with 20 pin and 4 pin power plugs make sure that the 20 pin power plug can provide at least 15A on 12V and the power supply unit has a minimum power rating of 350W...

Page 12: ...Connector KB The connectors are for PS 2 keyboard and PS 2 Mouse 4 USB Port connector CN5 UL1 for USB The connectors are 4 pin connector that connects USB devices to the system board 5 LAN Port connec...

Page 13: ...wise the system performance on this channel may drop 8 Serial ATAII Port connector SATA1 SATA6 This connector supports the provided Serial ATA2 IDE hard disk cable to connecting the motherboard with s...

Page 14: ...A G N D D A T A 3 Speaker connector SPEAK1 This 4 pin connector connects to the case mounted speaker See the figure below 4 Power LED PWR LED PWRLED1 The Power LED is light on while the system power i...

Page 15: ...upport cooling fans of 350mA 4 2 Watts or less depending on the fan manufacturer the wire and plug may be different The red wire should be positive while the black should be ground Connect the fan s p...

Page 16: ...to external speakers or compressed AC3 data to an external Dolby digital decoder Use this feature only when your stereo system has digital input function Some of the VGA Card need connect SPDIF IN Co...

Page 17: ...JBAT to store the CMOS data To clear the CMOS follow the procedure below 1 Turn off the system and unplug the AC power 2 Remove ATX power cable from ATX power connector 3 Locate JBAT and short pins 2...

Page 18: ...ghts are lit and hard drive is spinning Using ever pressure on both ends of the DIMM press down firmly until the module snaps into places System doesn t boot from hard disk drive can be booted from op...

Page 19: ...e than 65 W to ensure long term working order Note 1 The relation between CPU Power Consumption Amount and Power Phase depending on difference in voltage rating one phase of power can provide 25 30W t...

Page 20: ...rry away heat produced by MOSFET for better heat dissipation effects At the same time we suggest using well ventilated cases to maintain temperature as 38 approximately inside 38 is recommended by CPU...

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