Mainboard AV40, AV40R

When use SCSI, Raid and IDE HDD devices, firstly please select "First Boot Device from SCSI" then select "RAID & SCSI Boot Order" options in Bios.

•  If need to disable RAID Bios function via S/W (Bios), please disable "Onboard RAID Boot Rom" option in Bios. Thus upon system boot up it will skip detection step for RAID device. When entering Windows OS still can detect RAID device, you can install the RAID driver for Promise FastTrak but RAID function is unusable since it is disabled in Bios.
•  AV40R does not support H/W disable of RAID Bios function, if required please purchase AV40 (without RAID).

Standard ATX power supply for AMD K7 and Intel PIII processor based mainboard is inadequate for this type of mainboard. Please use standard P4 power supply for AV40/R. Power supplies must comply with either the ATX12V or SFX12V design guidelines (see the http://www.formfactors.org/ for details) and supply additional current on the 12V power rail through a new 2x2 connector. Also, additional 3.3V and 5V current is supplied through a separate 1x6 connector, on the ATX12V power supplies (SFX12V power supplies do not have the separate 1x6 connector). All Pentium 4 processor-based systems require the standard 2x10, 20-pin ATX power connector as well as the 2x2, 4-pin 12V connector. You'll find there are 3 power connectors from the P4 power supply : 20-pin std ATX power header, 6-pin Auxiliary ATX power header and 2*2-pin ATX12V power header. 

	This P4 mainboard uses 20-pin Pentium 4 standard ATX power header  (connect to J11)
	Connect 6-pin Aux VccNcc3 ATX power supply header to JP10
	Connect 2*2-pin + 12VPC ATX power supply header to JP9

The ATX power connector is directional and will not go in unless the guides match perfectly making sure that pin#1 is properly positioned. Make sure that the latch of the ATX power connector clicks into place. The power supply must be supplied to ACPI +5V standby power and at least 720mA. Also make sure your P4 power supply have enough power for higher speed processor installed. Please don't connect the power connectors to the mainboard until all other H/W devices has been installed.

No, it does not support ECC memory. AV40/R supports DDR 200/266 compliant SDRAM up to 1.5GB (un-buffered) capacity only. Also supports DDR 200/266 compliant SDRAM up to 3GB (registered) capacity.

After installing the driver for ATI series AGP 4x VGA card on AV40/R mainboard, why do I get a blank screen? Then no matter what I do, system powers up but still blank screen.

Please follow the following steps to avoid the problems :

• 1. Disable AGP 4x mode or change to 2x mode in Bios
• 2. Install O.S.
• 3. Install VIA 4-in-1 drivers (4.29V or later)
• 4. Install ATI VGA driver
• 5. Enter to O.S.
• 6. Restart the system and go back to Bios Setup to enable AGP 4x mode.

Adhesive thermal silicone gel such as Shin-Etsu Silicone will set after about 6 hours and form a strong bond between the heatsink and CPU die or other applied surfaces (eg. memory module, chipsets). This type of adhesive thermal compound is strongly not recommended to use on P4 Socket 423/478 CPU die. Since fan heatsink will stick strongly to the P4 CPU die and due to P4 Socket 423/478 ZIF socket structural design, upon removal of the heatsink will force P4 CPU to break apart from the ZIF socket thus damaging both pins on P4 CPU and ZIF socket. Please use non-adhesive thermal compound for P4 CPU only to avoid any damage done to the ZIF socket and P4 CPU.

RAID 0 or RAID 1 function is only supported by the master channel of Promise ATA RAID (Promise PDC20265R chip). The HDD connects to the slave channel of Promise ATA RAID are to be as ATA HDD.

Before installing Windows 2000/XP, please extract the Promise IDE RAID driver from our download page to an empty floppy disk. Follow the following procedure to install RAID driver during the initial OS install setup :

• 1. Boot up with Win2000/XP CD
• 2. The message " Press F6 if you need to install a third party SCSI or RAID driver..." will appear at the bottom of the initial OS setup screen. 
  Press <F6> to install RAID driver
• 3. When the "Windows 2000/XP Setup" window is generated, press "S" to specify an Additional Devices.
• 4. Press "O" to select "Other" and press the <Enter> key.
• 5. Insert the Windows 2000/XP RAID driver floppy disk in drive A: and press <Enter> key.
• 6. Follow the setup menu.
• 7. If you need to specify any additional devices to be installed, do so at this time.
• 8. Once all RAID/SCSI devices are specified and respective driver installed continue with Win2000/XP installation.

System cannot resume from S3 when 3 registered DDR DIMMs are installed on AV40/R , but if install only 1 or 2 DDR DIMM is installed the system can resume from S3 normally. Therefore if you are using 3 pcs of registered DDR memory please set suspend mode in Bios to S1 (Bios default is S1).

Links concerning this chapter:

• Short tabulated overview
• Socket 478 Mainboards with VIA-chipset
• High resolution images Socket-478-mainboards ATX form factor