Strange AMD 5600 X2 problem

[Smitty308]

I have had an AMD 5600+ X2 in my computer for almost a year now in an Asrock motherboard. It runs great and I have no problems. I think it is a Windsor core.

I recently picked up another 5600+ with an ECS motherboard in a combo deal. I benchtested that setup and it works fine. But is shows it is a Dublin core that runs at 2.9 Ghz instead of 2.8 like my Windsor.

I decided to try the 2nd one in my Asrock board since it is a tiny bit faster. I plugged it in and I could only get to the post screen where it detected the drives. It would boot no further. I then put the Windsor back in and it boots fine.

I tried the new one a couple of times thinking I just needed to reseat it but it still won't get past the same post screen.

I have the Windsor back in and it is back to normal. Anyone have an idea why the new one is not working with the Asrock board but will work fine with the ECS board?

Thanks
Smitty

 

[VirtualLarry]

Tried updating the bios on the older board to support the new cpu?

 

[AsusGuy]

I'm guessing the ASRock motherboard does not support your new 65nm Brisbane (Dublin) processor e.g. a BIOS upgrade may add support for the new 65nm processor over the older 90nm Windsor. The Brisbane (or Dublin) 5600+ is not however faster then the Windsor chip of the same model number. It is clocked at 2.9Ghz over the 2.8Ghz Windsor however the Windsors have 1MB of cache per core and the Brisbane's only have 512kb per core. The Windsor core is also more efficient then 65nm Brisbane. Just stick with the Windsor as your main proc.

 

[Smitty308]

Thanks for the replies. I was wondering why I couldn't find much about the Dublin core and was not aware they were Brisbanes. I was also getting mixed info about the L2 cache but I was pretty sure the Windsor was 1MB on each core. AMD's website wasn't very helpful to explain all the differences.

Thanks again.
Smitty