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http://www.anandtech.com/weblog/showpost.aspx?i=583

...we have had an interesting time with our AMD AM3 motherboards. We tested several BIOS releases, provided our input, and then tested what came back to us. This should have been a quick process based on our agreements with the suppliers and fairly mature chipsets. As it turns out, the performance differences between BIOS releases have been all over the map. It has been a case of plug one leak and then find two more a day later instead of just fixing a particular set of problems. Although the boards have been extremely solid at stock settings, when pushed they have exhibited more personalities than Sybil.

This is not to slight the products or scare monger away potential customers. We absolutely love the latest AM3 products from MSI, Gigabyte, and ASRock along with their updated AM2+ lineups. Testing started a few weeks ago with our motherboards from ASUS for a series of articles ranging from CrossFireX performance with the ultra hot and chic Phenom II X3 720BE, a DDR2 versus DDR3 memory performance comparison, enhancing platform performance via increases in Northbridge speed, and of course the actual motherboard reviews.

The good news is that the latest beta BIOS' have solved the vast majority of problems, it just took sometime to get to this point. The one interesting aspect is that all of the motherboards at one time or another suffered from similar problems. This usually does not occur and it lead to some interesting discoveries and then solutions on behalf of the BIOS teams. At one point I joked with a particular supplier if all of the BIOS engineers from the various motherboard companies met at the same Internet Cafe in Taipei during evening hours to discuss ways to ensure my total hair loss by May.

It was just strange as each 790FX AM3 board eventually suffered the same problem. Everything from the boards hard locking if HT reference clocks were set over 214 with CrossFireX active to various problems clocking Northbridge speeds up and poor memory performance just to name a few. To everyone's credit, the problems have been identified and are being solved or have been solved. We are at the point now where the last few remaining problems will mainly affect those who utilize Dry Ice or LN2 for overclocking, otherwise, the boards are in or will be in excellent shape within a week as updated BIOS' are released. We will discuss this further in an upcoming article, but a major factor for some of the quirky behavior between BIOS releases had to do with updated AGESA code from AMD during and after the AM3 launch.

All that said, we are at the point now where our results at least make sense and are repeatable. Later today we will publish the 720BE CrossFire article and in a couple of days we will have the DDR2/DDR3 comparison on the AMD platform. In early April we will start rolling out the motherboard reviews for the 790FX/790GX AM3 boards along with a really good AM2+ 780G product update from ASRock that impressed us and should be in stock shortly.

In the meantime, we are expecting our first retail Core i7 D0 stepping processors in a few days and will provide an immediate update on a product that has been generating a lot of forum buzz the past few weeks. Speaking of the i7, we will discuss the ASRock X58 motherboard shortly as it is running four GTX-295 cards without a problem and our long term stability tests have indicated this is a very solid product from a newcomer in this market. Also on the calendar in April is our second X58 motherboard roundup with a focus on the motherboards priced under $250. Raja will provide results for the more extreme crowd with the latest enthusiast boards from EVGA, Foxconn, and ASUS.