Wrong bus speed on hard drive?
During boot up I have noticed the message :
"ide: assuming 33MHz system bus speed for PIO modes; override with idebus=xx" My hard drive is a Seagate Barracuda 7200.7 series which is ATA-100. Does this mean that my hard drive is running slower than it should? If so, do I add idebus=100 to the kernel line in my /boot/grub/menu.lst? |
It may mean your IDE cable is ATA-33.
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No, only if your HDD is set in PIO mode will it run at 33MHz. It's most likely running in DMA mode.
"dmesg | grep DMA" should tell you. |
Thanks for the replies.
"dmesg | grep DMA" gave the following output: 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 hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=14593/255/63, UDMA(100) It looks as if hda (my hard drive) is running in DMA mode. Is that right? EDIT: I don't have a clue what the smilies are doing in there but I can't get rid of them! |
Yes, all four of your drives are running in DMA mode. Your hda in particular is running in UDMA100 (100 MB/s) mode.
The smilies are because that's what you get when you put a colon next to a capital D, unless you turn of smilies :) If they really bother you, click on "edit" then "go advanced" and check "disable smilies" at the bottom. |
Once again, many thanks
Mikie :) |
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