Problems installing openbsd 3.0 on a 486 processor @ 33mhz

[Sub_0 <sub_0_(_at_)_tvtel_(_dot_)_pt>]

The first time I tried to install openbsd 3.0 on the 486, it wouldn't boot after
portmap loaded. I waited for about 20 minutes. The second time it would get
past portmap but would output something about not being able to create the
process system and it hangs.

Processor: 486 DX2 33Mhz
RAM: 8 cards with 1MB each
CDROM connected as Slave
3GB of Hard disk as Master
Floppy drive
Ethernet card ISA with realtek chipset

I haven't found out the problem yet, but we think it may be related to the hard drive
since it's a 3gb hdd