strange message -- kernel trap 19

[alicornio]

Hi all 

I have some problems with my machine. After the problem of my hd(many 
badblocks and consequently bugs in filesystem) a new problem arise. Some 
time after the login on FBSD is promped this messages: 

Jan 23 17:16:31 Machina kernel: NMI ISA 20, EISA ff 
Jan 23 17:16:35 Machina kernel: NMI ISA 20, EISA ff 
Jan 23 17:16:45 Machina kernel: kernel trap 19 with interrupts disabled 
Jan 23 17:16:45 Machina kernel: NMI ISA 30, EISA ff 
Jan 23 17:16:47 Machina kernel: NMI ISA 20, EISA ff 
Jan 23 17:16:54 Machina kernel: NMI ISA 20, EISA ff 
Jan 23 17:16:58 Machina kernel: NMI ISA 30, EISA ff 
Jan 23 17:17:04 Machina kernel: kernel trap 19 with interrupts disabled 
Jan 23 17:17:04 Machina kernel: NMI ISA 30, EISA ff 
Jan 23 17:17:06 Machina kernel: kernel trap 19 with interrupts disabled 
Jan 23 17:17:06 Machina kernel: NMI ISA 30, EISA ff 
Jan 23 17:17:07 Machina kernel: kernel trap 19 with interrupts disabled 
Jan 23 17:17:07 Machina kernel: NMI ISA 20, EISA ff 
Jan 23 17:17:07 Machina kernel: kernel trap 19 with interrupts disabled 
Jan 23 17:17:07 Machina kernel: NMI ISA 30, EISA ff 
Jan 23 17:17:12 Machina kernel: kernel trap 19 with interrupts disabled 

And finally the reboot of system. 
In my Windows simply arise the blue screen. 

I'm using the same problematic hd. Could it be the problem? 

I'm waiting for feedbacks 

thanks 

Thiago