i need your help

i have 6 pci quad in one pc but only show 15 device i dont know why, before that i see the 24 devices.
root@iptv:/dev/dvb# ls -l
total 0
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter0
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter1
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter10
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter11
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter12
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter13
drwxr-xr-x 2 root root 100 Dec 13 20:06 adapter14
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter2
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter3
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter4
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter5
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter6
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter7
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter8
drwxr-xr-x 2 root root 120 Dec 13 20:06 adapter9
root@iptv:/dev/dvb# lspci | grep Multimedia
01:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
02:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
03:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
06:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
07:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
08:00.0 Multimedia controller: Philips Semiconductors SAA7160 (rev 02)
root@feeder:/dev/dvb#
someone can help me please.
Thanks