7.1 does not boot on GA-MA770-GS3 (rev. 2.0), but works fine on rev. 1.0?

[Alexander Konovalenko]

Hi,

I have upgraded my hardware from Sempron 3400+ to Phenom X3 8480 on Gigabyte 
GA-MA770-GS3 (rev. 2.0). 

 FreeBSD 7.1 (amd64) freezes during the boot. Suspecting not appropriate hw 
configuration for old motherboard I tried to boot from installation CD 7.1 
but got the same result... Tried i386 CD but still no luck. However, FreeBSD 
6.1 disc booted up successfully.

Freezing occurs right after recognition of additional cores and, if verbose 
output is enabled, initialization of many IOAPIC devices (irqs?). I tried to 
disable in BIOS as many as possible onboard devices (lan, audio, 
serial&parallel ports, firewire...), disconnected cd and floppy drives but it 
did not help.

 Funny thing is that I have another computer with Phenom X4 on GA-MA770-GS3 
(rev. 1.0) and FreeBSD 7.1 amd64 works like a clock there! Note, this is 
older version of the same board with lower hw revision. That was the main 
reason why I bought the same MB with a hope that everything will work...

Has anybody experienced such problem?

HW config:
2Gb RAM: Kingston DDR2 HyperX PC8500 1024MB CL5 running at 800 MHz
HDD: Hitachi 250Gb SATA

 Well, might be that board is faulty, the BIOS update have not been released 
yet for GA-MA770-GS3 (rev. 2.0). But Windows works ok, though reports few 
unknown devices...


I just checked differences between rev. 1.0 and 2.0:

1) system bus might be a bit faster for 2.0 (not sure)
2) two additional SATA channels
3) two additional USB 2.0 ports

This is what I can see there: 
http://www.gigabyte.com.tw/Products/Motherboard/Products_ComparisonSheet.aspx?ProductID=2874,2722

Any suggestion?

regards,
 Alexander Konovalenko