I've got a Packard Bell Easynote H5315 laptop. It contains an SIS5513 IDE controller. Attached to it is a 60GB "SAMSUNG MP0603H" disk as hda, and a "_NEC DVD+/-RW ND-6500A" DVD/CD ReWriter as hdc. I can't seem to enable anything above UDMA2 for the HDD, and when I burn CDs the drive attempts to run at 10x and the whole machine starts becoming unresponsive - the mouse pointer in X jerks around, sound stops and the buffer status of the CD drive jumps up and down. I've tried doing "hdparm -Xudma5 /dev/hda", but when I type 'dmesg' I get the following: ide0: Speed warnings UDMA 3/4/5 is not functional. Is this a driver problem since surely people still can't be making new computers that don't support drive speeds above UDMA2... I bought the laptop in December, so it's relatively new. Now the thing I've noticed (and it's pasted at the bottom of this email) is that the drive is connected to the motherboard with a 40-wire IDE cable. Is this because 80-wire laptop IDE cables don't exist, or has someone tried to save money? Is there any way I can make my drive faster? uname -a shows: Linux hex 2.6.10-gentoo-r4 #7 SMP Wed Jan 26 13:08:48 GMT 2005 i686 Mobile Intel(R) Pentium(R) 4 CPU 3.20GHz GenuineIntel GNU/Linux When booting, this is displayed: Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx SIS5513: IDE controller at PCI slot 0000:00:02.5 SIS5513: chipset revision 0 SIS5513: not 100% native mode: will probe irqs later SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:DMA Probing IDE interface ide0... hda: SAMSUNG MP0603H, ATA DISK drive elevator: using anticipatory as default io scheduler ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... hdc: _NEC DVD+/-RW ND-6500A, ATAPI CD/DVD-ROM drive ide1 at 0x170-0x177,0x376 on irq 15 Probing IDE interface ide2... ide2: Wait for ready failed before probe ! Probing IDE interface ide3... ide3: Wait for ready failed before probe ! Probing IDE interface ide4... ide4: Wait for ready failed before probe ! Probing IDE interface ide5... ide5: Wait for ready failed before probe ! hda: max request size: 1024KiB hda: 117304992 sectors (60060 MB) w/8192KiB Cache, CHS=16383/255/63, UDMA(33) hda: cache flushes supported /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 hdc: ATAPI 24X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33) Uniform CD-ROM driver Revision: 3.20 This is the contents of /proc/ide/sis: SiS 5513 Ultra 133 chipset --------------- Primary Channel ---------------- Secondary Channel ------------- Channel Status: On On Operation Mode: Compatible Compatible Cable Type: 40 pins 40 pins Drive 0: UDMA Enabled UDMA Enabled UDMA Cycle Time 6 CLK UDMA Cycle Time 6 CLK Drive 1: UDMA Disabled UDMA Disabled UDMA Cycle Time 12 CLK UDMA Cycle Time 12 CLK -- http://www.piku.org.uk - Outdoor Photos: http://www.piku.co.uk - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html