CPU/Mobo AMD Bulldozer Discussion Thread

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Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

Come on ASUS, you're giving AM3+ to 760G based motherboards, and not 785G mobos?? I want AM3+ on 785G EVO mobos !!!!
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

what does that mean? I thought that the current Gigabyte 890FXA-UD5 boards will be compitable with the bulldozer through a simple BIOS update. If the new revision includes a whole new socket upgrade then my dream will not come true.. :(
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

sadly even that is a rev 3.1 with a (black colored) AM3+ socket.

If you look at the specs of the earlier revision v3.0, the new bios is not available and the cpu support is restricted to AM3 processors.

:(

I am not sure what shenanigans Asus folks are pulling to support Zambezi but I guess its prudent to wait and watch to see how this plays out.

As of now, people making AMD mobo purchases should be very careful of what revision they are getting and whether the board has the new black socket with explicit support for AM3+.
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

Reading the comments from techpowerup, there seems to be a pin difference which would make running a AM3+ on current motherboards impossible. Just dashed my hopes completely!
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

Source: http://news.softpedia.com/news/AMD-...-with-AM3-Motherboards-Explained-189891.shtml

Yesterday, Asus dropped a bomb shell when it announced officially that some of their AM3 motherboards are compatible with AMD's upcoming AM3+ Bulldozer chips via a simple BIOS update, a feat that AMD said time and time again that it was impossible to achieve.

To support its claims, AMD has always pointed at the different pin layouts of the two sockets, as AM3+ has one extra pin that makes inserting Bulldozer/Zambezi CPUs in AM3motherboards impossible.

However, sources cited by the Sweclcokers website claim that the extra pin available on the socket isn't present on Zambezi processors, so the pin layout is identical to that of an ordinary AM3 CPU.

As a result, these can be installed inside regular AM3 boards and all that is required is a BIOS update so that the new processors will be recognized by the board.

From Asus' entire lineup of AM3 motherboards, the company said that only six models are compatible with AMD's upcoming processors, including the company's high-end Crosshair IV Formula and Crosshair IV models.

According to the same website, the limitation could be imposed by the fact that AM3+ CPUs place a higher power demand on the board than their AM3 counterparts.

Right now, AMD hasn't issued any official response regarding Bulldozer's compatibility with AM3 motherboards, but we will keep you up to date if such an announcement is released.

The official Asus post regarding their motherboard compatibility with Zambezi CPUs can be read here and the 3012 beta BIOS files, with support for AM3+ processors, can be downloaded from the company's FPT by following this link.

Bulldozer is AMD's next-generation high-performance CPU architecture that was designed from the ground up in order to eliminate some of the redundancies that come with traditional multi-core designs and the first Zamabezi chips (the name used for the Bulldozer desktop CPUs) are expected to arrive in June of 2011.
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

I wonder if amd could release a kit to upgrade older sockets for new ones that would be really cool.
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

wud b good if mods wud change this threads name to Bulldozer Discussion Thread... :)

Source: Rumour: AMD FX-series (Bulldozer) releasing June 11th - VR-Zone.com

Five years in the making, AMD's Bulldozer has gone through a slew of changes in schedule. According to the last report, Bulldozer's shipping date was suggested as June 20th. Now, DonanimHaber is introducing a new date - June 11th. AMD's 9-series motherboards will release in May, presumably during Computex 2011 time. Around this time, AMD's FX series is expected to be officially announced and dated.

Considering June 11th is a Saturday, it does seem like an odd time to release a major CPU. The previous date of June 20th seems more realistic. Regardless, AMD's official timeline remains "Q2 2011" and unless there are any major changes, AMD's FX series is set to be unleashed some time in June 2011. A preliminary line-up of FX series CPUs has already been leaked and can be viewed here.

Source: DonanimHaber
 
Re: AMD Bulldozer Said to Be Compatible with AM3 Motherboards

Let me see if I can fix this (if anyone is still reading)..

First have a look at the difference of AM3 and AM3+

The_missing_pin.jpg


Which in fact does make it physically impossible for a AM3+ CPU, to fit in a AM3 motherboard.

However, current AMD chipsets like the 890, 880, 870, 790, 760- series etc. IS compatible with Zambezi/Bulldozer/FX AM3+ CPU's.

So, what the motherboard manufacturers are currently doing, is fitting AM3+ sockets on existing AM3 motherboards, and calling them a new revision.

To sum up: For a motherboard to support Zambezi/Bulldozer/FX, it will need a AM3+ socket, but not (necceseraly) the new 990FX / 990X chipset.

Generally AM3+ sockets are black, and AM3 sockets are white, so it's actually quite easy to spot which boards are compatible, and which are not.

Just have a look at Gigabytes website, and you'll be able to spot both AM3 and AM3+ sockets on motherboards (confusingly) under the AM3 tab:

http://gigabyte.com/products/list.as...jid=10&p=2&v=2
If you want to check if you board has an AM3+ socket, just look for 3 things:

1) Black socket
2) Written "AM3b" in it
3) Has one less pinhole
hmm that is too bad at june, so i have to wait for more than 3 more months before check benchmark then i can update what i want at soon compare am3+ socket only z
 
comp@ddict said:
why in the world did i buy a 785G motherboard, seems the 760G ones support AM3+.... bummer
i too have a 785 chipset

really annoying that for an upgrade i have to sell my motherboard
 
^^ Any AM3 motherboard requires a socket change to be compatible with AM3+ proccys.. that's what is indicated in the pics above. A simple BIOS upgrade will not be enough. So existing users have no other go. On the other hand, only the people who buy new revisions (with modified AM3 socket on the same board) will be able to later upgrade to AM3+ proccys.

But how much of a performance impact will it have.. it's anybodys guess ATM
 
vpraveenis said:
^^ Any AM3 motherboard requires a socket change to be compatible with AM3+ proccys.. that's what is indicated in the pics above. A simple BIOS upgrade will not be enough. So existing users have no other go. On the other hand, only the people who buy new revisions (with modified AM3 socket on the same board) will be able to later upgrade to AM3+ proccys.

But how much of a performance impact will it have.. it's anybodys guess ATM

Yeah sure, the AM3r2 socket has one extra pin - but does the CPU itself have that extra pin? I mean, the AM3 socket itself had one pin more than the AM3 CPUs... And then Asus has confirmed AM3+ will work in their AM3 socket mobos with a BIOS upgrade.
 
AMD's Upcoming Bulldozer Processor Gets Pictured - Softpedia

The very first pictures depicting a processor based on the highly anticipated Bulldozer architecture have made their way to the Web, to reveal some more details about AMD's upcoming CPU lineup. The chip is marketed as an engineering sample and was built by AMD in 2010.

No other information except for the two pictures were provided, but the product code of the chip doesn't seem to resemble any AMD processor that is available right now.

Sadly, most of the OPN is masked so we can't find out the chips TDP or any other details, but we do know this is a desktop CPU, probably one of the FX-series models which AMD is expected to launch at the beginning of June.

Moving to the backside of the chip, we find that it uses a different pin arrangement than that of today's AM3 chips, which seems to contradict Asus' and MSI's claims regarding AM3 motherboard compatibility with AM3+ processors.

A possible explanation for this fact could be that the engineering sample pictured is based on an older revision of the Zambezi core which wasn't actually compatible with AM3 motherboards and that somewhere down the line AMD has decided to remove those two extra pins.

AMD's upcoming Bulldozer processors will be split into three different product families depending on the systems they target.

The Zamabezi core will be used for desktop processors, Valencia for entry-level and mid-range servers, and Interlagos will be used in HPC systems.

However, all will share the same architecture that features a modular design approach, each module being comprised of two 128-bit FMA floating point units, which can be combined into one 256-bit FPU, two integer cores, with four pipelines each and as much as 2048KB of L2 cache.

The first Bulldozer processors are expected on June 11 (some sources even say June 7) and will use the Zambezi desktop die. (via Donanim Haber)
 
AMD 900-Series Chipset Required for Bulldozer Power Gating Technology

Source: AMD 900-Series Chipset Required for Bulldozer Power Gating Technology - Softpedia

Softpedia said:
AMD's upcoming 900-series motherboard chipsets, that the company plans to launch together with its Zamabezi FX processors based on the Bulldozer architecture, will feature an improved power management technology which should decrease the energy consumption of AMD's future CPUs.

Ever since the first details about AMD's 900-series chipsets emerged, many have wondered how these controllers are different than their 800-series counterparts, as most of their features were virtually identical.

This question became ever more important after it was uncovered that the desktop Bulldozer chips are pin compatible with the AM3 socket, some motherboard manufacturers even expressing their support for these CPUs in some of their current products, as long as a revised BIOS version was installed.

However, these questions can be now put to rest, as Nordic Hardware has uncovered one of the major features that the 900-series AMD chipsets bring to the table.

According to the publication, the Zambezi FX processors require a 900-series motherboard for activating the power gating features found inside the processor itself.

Unlike AMD's previous CPUs, the Bulldozer architecture uses a new version of the Turbo Core technology that can optimize the performance of the chip according to the tasks run, in order to improve its power efficiency.

Furthermore, AMD has also implemented a series of power-gates in the chips, which can shut off specific parts of the CPU when these aren't used, such as an inactive core.

This is the first time that this technology makes its way into AMD's processors, but it has been used by Intel since the days of the first Nehalem chips.

Outside of a power-gating capable processor, the technology also requires the motherboard to support certain specialized control circuits, which are only found in 900-series chipsets.

At this moment, we don't know jut how much of a difference this new technology will make in terms of power consumption, but it could prove to be quite an important selling point for AMD's upcoming chipsets.

The first Zambezi FX processors are expected to make their appearance at the beginning of June together with the AMD 990FX northbridge controller.
 
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