AMD SB800 PDF

AMD Southbridge SB chips to include built-in Serial ATA 3 support. AMD’s SBseries fan speed controller exposed. Options aplenty make this motherboard reviewer swoon by Geoff Gasior — AM on. I’ve been a big fan, pun intended, of fan control options in the BIOS. Some motherboards have real basic functionality while some of have been excellent.

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Advanced Micro Devices, Inc. [AMD/ATI] SB/SB IDE Controller IDE | Ubuntu

This method drapes a string of linear slopes across multiple step points. Webarchive template wayback links Articles with Japanese-language external links.

Retrieved from ” https: The codenamed “Catalunya” platform consists of codenamed “Suzuka” quad-core processors, featuring Socket AM3 and support dual-channel registered DDR3 memory, adm platform supports HyperTransport 3. AMD sockets and chipsets.

AMD’s SB800-series fan speed controller exposed

Big news, no news, and future news. The IGP features are listed below:. CuttinHobo I heard he prefers to be called a Seth Lord Customize The Tech Report Dell returns to the stock market after six years. No Interruptions Day Shortbread. Views Read Edit View history. Motherboard s8b00 need only to connect fan and diode traces to the south bridge and implement the necessary BIOS hooks to give users access to fan control variables.

I couldn’t mad graph them.

Advanced Micro Devices chipsets. In fact, I’d wager that most of us would happily trade the ability to tweak obscure memory timings and system voltages for such robust fan control functionality. Each one can have its own profile, and 3- and 4-pin fans are supported across the board.

From Wikipedia, the free encyclopedia. Of the big three, only Asus has made real progress in improving BIOS-level fan speed controls, and it still has a long way to go to match what now-defunct mobo maker Abit was doing more than seven years ago. Any halfway-decent motherboard BIOS has more than enough clock and voltage ranges for enthusiasts, and most go above and beyond what even truly extreme liquid-nitrogen-fueled overclockers might require.

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Current information about the chipset series is very scarce, while the officially published information about the series is the server chipsets with two variants available, the AMD S chipset and the AMD S chipset, all of them paired with the SBS series southbridge. Motherboard manufacturers typically rely on SuperIO chips or other auxiliary silicon to adjust fan speeds based on system temperatures.

Putting this functionality in the chipset certainly makes sense, but has AMD implemented the sort of functionality enthusiasts might want? Non-linear mode is just as flexible, allowing users to configure as many slopes as they can steps.

Linear mode is most akin to what’s available in contemporary BIOSes, although users aren’t always able to set minimum and maximum temperature thresholds and fan speeds. On the overclocking front, we’ve long passed the point of diminishing returns. Email the author s: The microcontroller can manage fan speeds using three algorithms: Props to Merrikh and AMD for incorporating such powerful fan control support in the south bridge, and shame on any motherboard maker that leaves this particular feature untapped in favor of alternative fan control mechanisms that offer less, well, control.

The codenamed “Maranello” platform consists of six-core “Sao Paulo” or twelve-core “Magny-Cours” processors. Few seem to have picked up on the fact that we also want our rigs to be as quiet as possible, though. While in the same internal event mentioned above, AMD gave a preview on the features of the SB8xx family of southbridges, as follows: Dual-sensor mode is designed primarily for motherboards with passively cooled north-bridge chips that rely on airflow generated by the CPU fan.

This page was last edited on 25 Septemberat Neutronbeam Besides money, let us know Seth what WE can do to help out–there’s a lot of sma In addition to the three algorithms that determine how fan speeds respond to temperature changes, the SB series is governed by single- and dual-sensor policies that dictate how temperatures are interpreted.

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In step mode, fan speeds jump from one value to the next as temperatures rise. MSI’s fan speed controls remain limited but continue to offer at least some tuning options, while Gigabyte’s are still shockingly nonexistent. The fan speed controls available in most modern BIOSes are basic at best and often laughably inadequate when compared to the frankly excessive overclocking options being offered.

There’s plenty of granularity, too. These two processors support a new socket called Socket G34 with four-channel DDR3 support, with other platform features such as HyperTransport 3.

The linear algorithm smooths things out, allowing fan speeds to ramp, well, linearly between predefined minimum and maximum values. In those cases, the thermal diode built into AMD’s north-bridge silicon can be used as a secondary temperature input.

They’ve come a long way in that time, adding integrated flashing utilities, support for multiple configuration profiles, and, of course, the ability to tweak a staggering array of memory timings, clock speeds, and voltages. About us Privacy policy Mailing list Mobile. Instead of being limited to single high and low values, AMD’s step mode can accommodate no fewer than eight predefined fan speeds and corresponding temperatures.

Combine the two, and you have a non-linear approach that’s really more multi-linear. Motherboard chipsets Sb8000 of AMD chipsets.

AMD’s SB800 Is a Completely New Southbridge

Because the south bridge can monitor and power no fewer than five individual fans. Most OSes require patches in order to work reliably. A view of the SB series’ fan control inputs and outputs. That’s a travesty, because this is exactly the sort of fan speed control that I’m sure many an enthusiast would love to have in his motherboard’s BIOS.

So, imagine my delight when, at AMD’s Technical Forum in Taipei last week, I came across a presentation on the fan speed controls enabled by the company’s current generation of south-bridge chips.