Features: ATI RS480/ULi M1575 Reference Board

The ULi M1575 Reference Board combined an ATI RS480 North Bridge with the ULi M1575 South Bridge to demonstrate clearly full compatibility with the ATI North Bridge. It is worth pointing out that the ATI RS480 supplies 22 PCIe lanes. The M1575 adds 4 more PCIe lanes. That means that the RS480/M1575 combo provides a total of 26 PCIe lanes compared to the total 20 lanes in competitors’ single-chip solutions.

ULi RS480/M1575 Reference
Processor Socket 939 for AMD K8 Processor
Chipset ATI RS480 + ULi M1575

RS480:
● Supports HyperTransport Bus 16×16 @ 1000 MHz Double Data Rate with LVDS-like differential technology (transfer rate 8 GB/S Max.).
● Supports three PCI-Express 22 lanes.

M1575 :
● Supports PCI-Express 4 lanes.
Memory ● Provides 4 184-pin DIMMs for PC1600/2100/2700/3200 DDR SDRAM up to 4GB.
● Supports up four unbuffered DDR DIMMs modules per the DDR SDRAM with a maximum capacity of 1 GB per module.
● Up to four unbuffered DIMMs in a 128-bit configuration, or up to two unbuffered DIMMs in
a 64-bit configuration.
Expansion Slots
● 1 PCI-E_X16 slot
● 2 PCI-E_X1 slots
● 2 PCI slots
● 1 CNR slot
● 1 LPC slot
Onboard Audio/LAN ● Built-in 7.1-channel AZALIA CODEC (Realtek ALC880)
● Built-in 10/100 Ethernet PHY onboard (DAVICOM DN9161)
Standard I/O
● Provides 6 audio jacks (Mic In, Line In, Line Out, Surround, Surrback, Cen/Lfe), 1 Analog Line-IN header (CD_IN).
● Provides 1 RJ-45 connector for LAN.
● PS2 Keyboard, PS2 Mouse, 1x FDD, 2xCOM, 1xLPT onboard
● 8 Universal Serial Bus (USB 2.0)
● 2 Ultra DMA 33/66/100/133 IDE Connectors
● 4 Serial ATA Connectors
System BIOS
● LPC ROM (4Mb and architected by Super I/O) (ITE8712F_IX)
● ACPI 2.0, DMI 2.0, APM 1.2, WFM 2.0, SMBIOS 2.3, Sm art for HDD, PnP 1.0a, USB 2.0/1.1, PCI 2.2
● Supports S0, S1, S3, S4 and S5.
● Supports AMD Power-Now.
● Supports en/disable C2 and C3 Function.
● Stepless frequency selection and over system bus frequency (over CLK operation Option) (ICS 951416)
● CPU/System FAN revolving detection
● CPU/System Temperature detection
● System Voltage detection
● USB device wake-up from S1, S3, S4 (Optional)
● KB/Mouse wake-up from S1-S3
● Wake-on-LAN from S1, S3-S4
● Wake-on-Ring from S1, S3-S4
System Protection
and Management
● Hardware monitoring (ITE8712F_IX)
● CPU Thermal Protection
● 2 Fan (1 CPU Fan, 1 SYS Fan) connectors

Index The ULi M1575 South Bridge
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  • CrystalBay - Thursday, October 13, 2005 - link

    Nice , no active cooling chipset fans to burn out in days after purchase.
  • formulav8 - Thursday, October 13, 2005 - link

    Could it really be as simple as the Codec for causing higher cpu usage compared to other codecs or does the audio's hardware have more of a impact? I may go do some research on this.


    Jason
  • Wesley Fink - Thursday, October 13, 2005 - link

    We have seen very large variations in Azalia HD Audio CPU utilization depending on the driver version used with the codec. That's why we suggested, in the article, that ULi, Realtek, or whichever codec is used for HD audio, may need to do more optimization of the HD Audio drivers.
  • formulav8 - Thursday, October 13, 2005 - link

    I don't see why these companys cannot put decent non cpu hogging audio in their south bridge.

    They do look to have good disk performance though.


    Jason
  • Myrandex - Friday, October 14, 2005 - link

    I knew there was a reason I keep using my Creative Sound blaster Audigy 2 sound card ;)

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