Boot issues with a Dell Inspiron 530 and 8.0 RC1

Hello list,

I am seeing a strange issue with my Dell Inspiron 530 with 8.0 RC1-p1
at around 50-75% percent of all boots. It all boils down to GENERIC
throwing the following:

AP #1 (PHY #1) failed!
panic y/n? [y] panic: bye-bye
cpuid = 0

However, this only happens when booting from the hard disk. A boot
from the install CD works perfectly every time. Testing the machine
with 7.2 last night revealed the same issue, so this is not specific
to 8.0
As an interesting side-note: the odds of a successful boot increase
dramtically when cold-booting. Rebooting from e.g. Linux or Windows
seems to push the failure-rate to around a 100% every time.

The system itself is almost completely Intel. Some specifications:
Intel 82801 PCI Bridge
Intel G33/G31/P35/P31 PCIe
Intel ICH9 SMBus

If anyone needs any more information just let me know. My incentive to
provide the information that is needed to get a fix for this is rather
high as this problem stops me from using FreeBSD on a machine that
shows no other problems with either Linux or Windows. :-)

Thank you,
Christian