ULi M1575 for ATI Crossfire – SATA2 and Fast USB for the ATI Chipset
by Wesley Fink on October 13, 2005 4:21 PM EST- Posted in
- CPUs
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.
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. |
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| 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. |
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| Expansion Slots |
● 1 PCI-E_X16 slot ● 2 PCI-E_X1 slots ● 2 PCI slots ● 1 CNR slot ● 1 LPC slot |
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| Onboard Audio/LAN | ● Built-in 7.1-channel AZALIA CODEC (Realtek ALC880) ● Built-in 10/100 Ethernet PHY onboard (DAVICOM DN9161) |
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| 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 |
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| 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 |
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| System Protection and Management |
● Hardware monitoring (ITE8712F_IX) ● CPU Thermal Protection ● 2 Fan (1 CPU Fan, 1 SYS Fan) connectors |
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nlr_2000 - Saturday, October 15, 2005 - link
nlr_2000 - Saturday, October 15, 2005 - link
It's on page 5.DRavisher - Friday, October 14, 2005 - link
Just you wait. In a couple of years ATi will finaly figure out how USB works and release a self made southbridge under the slogan "USB done right!", where they will tout their superiority in USB over nvidia, and how important good USB performance from the same company that designed the northbridge is for a company.sprockkets - Friday, October 14, 2005 - link
why bother with another southbridge? Keep it simple for linux driver support.But since video with nvidia is better supported anyhow, might as well just use the 6100 vs the exp 200
LoneWolf15 - Friday, October 14, 2005 - link
Good review. I guess for me it all comes down to the same thing though, economics.SLI and Crossfire have a high cost. Two video cards, a motherboard that supports them, a power supply that supports them, plus additional cooling. And then within 6-10 months, a new high-end card comes out that's a single-slot solution that can beat previous SLI/Crossfire solutions before it, and since it's single slot, doesn't need the special mainboard.
I think we'll see in a year, maybe two tops, that vendors will begin implementing either dual-core GPU chips, or two GPU chips on a single PCIe card much more often, making SLI and Crossfire a moot point for all but people who need a high-performance multi-monitor setup. I think SLI and Crossfire are just stopgap solutions until this arrives, and a lot of money to spend when a mid-to-high-end single card will give you what you need for less.
notposting - Thursday, October 13, 2005 - link
Don't suppose there's been any word on more motherboard's based on ULi's 1695 North bridge?The Asrock looks like a pretty good board, but I when I toss my chips into the 64bit pile I'll be trying to get a top line mobo featurewise, Firewire, SATA2, gigabit Lan, great sound.
Good to see some competition for Nvidia (and Intel ironically by Nvidia) in the chipset department. Better for us and pushes them (all the manufacturers) harder.
tuteja1986 - Thursday, October 13, 2005 - link
My main reason for wanting to buy a ATI chipset at the moment is because of Sata 2 performance and overclocking abilities. I couldn’t care less for USB since I only use a USB mouse, and Joystick that computer. If i really need a fast USB port than i would just buy a cheap $10 PCI USB/Firewire card from my local computer store.Madellga - Thursday, October 13, 2005 - link
We got an important piece of information provided by Wesley: The Crossfire motherboards are not a paperlaunch due to ATI delays, they were delayed by the OEMs due a last minute change to the ULI1575 chipset.It is worth in my opinion the delay, as we can get a truly competitive solution, even if one doesn't need the Crossfire feature.
I still have a question for Wesley: some say that the ATI/ULI combo chipsets run cooler than Nvidia's. Is that true?
Wesley Fink - Thursday, October 13, 2005 - link
I've had the bare ULi SB running for hours. It's very warm to the touch but not hot - without any heatsink at all. A passive heatsink should be plenty. The ATI RS480 north bridge has a passive heatsink which is completely cool to the touch. The final Crossfir RD482 uses the .11 process compared to the .13 on theis RS480.The ATI solution is 2 chips compared to the single-chip nVidia, which may partially account for the extra heat many complain about on the nVidia nF4.
The ATI chipset delays are a result of several factors - the ULI M1575 being just one. I have been told the chipset has been ready for months, but the video component was a moving target. Final release needed a coordinated Crossfire video and chipset solution, and Crossfire has only recently been solidified to the point of production. The video delays made the chipset late since no manufacturer wanted to launch a new chipset only to face potentail board revisions in a month or two.
Cygni - Thursday, October 13, 2005 - link
Not entirly true... the boards NOT using ULi southbridges (using the ATI SB540) arent exactly flooding the market, ya know.No, the last minute change simply kept a few major players like ASUS from (not really) launching with the rest of the boards that are using the ATI southbridge.