I was reading through these posts the other day and someone posted that the Athlon 4 is going to be compatible with current AMD Thunderbird/Duron boards. I was just seeing if anyone knew if that is true or not. Also when is the Athlong 4 schedule to come out and any estimated prices for processors of the athlon 4 yet? Thanks
Yes- they will be backwards compatible with every socket A board and chipset. As long as the board supports the lower voltages of the Athlon 4- it'll work (and all boards do). The BIOS might recognize it as a regular Athlon or even a Duron since the voltage is lower- but it'll work just like a Athlon 4.
Was just reading an article from AnandTech about a computer show in Hong kong. Here's what they say about Athlon 4 and motherboard issues.
"AMD unveiled their new Athlon core with the Athlon 4 a couple weeks ago. While no benchmarks have been published yet, the question remains whether the new processor will work on current motherboards. We took this chance to ask ABIT if they have any information on this topic with respect to their popular KT7A-RAID. He told us that, so far, their testing has been quite positive and that the Athlon 4 chips they have in hand are working properly on the KT7A-RAID.
When asked if this is because the KT7A-RAID has a very wide range of CPU core voltages (from 1.100 – 1.850 in 0.025V increments), we got a somewhat surprising response. While voltage values available on the board could be an issue, the most important piece of the puzzle is the necessary circuitry for detecting the chip correctly. They said that the circuitry on their current KT7A-RAID is already capable of detecting the Palomino core and that's the main reason why the chip will work on their board, but possibly not on others.
This is quite surprising since we previously thought that voltage would be the most important factor for getting the Palomino to work on a KT133A. However, if the correct circuitry is really what is needed for this to happen, it could be bad news for those KT133A users whose boards happen to not have this circuitry since no BIOS update can fix that. We have yet to see how other manufacturers will address this issue, though, and we'll be doing our own testing in the lab soon enough".
According to AMD, as long as the motherboard manufactorers followed AMD's suggested guidlines the new palimino's will be compatable in the old socket a boards. However, this is not often the case so likely we will see a few boards that are not compatable. Just as to what boards are and are not we will have to wait and see. We very well could see a repeat of when the slot-a t-bird was released where the slot bird would work fine in the older amd irongate chipset but not the VIA kx-133. Right now it is anybody's guess, but Abit has said that it will work in thier kt133a board so that is a good sign.
Intel changed pin layout on the celerons from PPGA to FCPGA seemingly just to force you to buy a new mobo with a new chipset, which incidentally is only available from Intel the first 6 months. They did the same thing with every chip generation, except Pentium MMX. Often without adding any new tecnology that made this nescessary.