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chiwi
Tux's lil' helper
Joined: 25 Apr 2004
Posts: 135
Location: Buenos Aires, Argentina
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 Posted: Mon Apr 26, 2004 9:03 am Post subject: changing from 33mhz idebus to 100/133mhz |
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hi there, i found with dmesg that my idebus is working at 33mhz, when it should be at 100 or 133. (dont remember which one now) How do i change it? in dmesg says something about passing the pàrameter "idebus=xx" to the kernel, but, doesnt work for me..
thanks for your time guys
fede. |
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adaptr
Watchman
Joined: 06 Oct 2002
Posts: 6730
Location: Rotterdam, Netherlands
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| Posted: Mon Apr 26, 2004 9:11 am Post subject: Re: changing from 33mhz idebus to 100/133mhz |
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| chiwi wrote: | | hi there, i found with dmesg that my idebus is working at 33mhz, when it should be at 100 or 133. |
No, it shouldn't.
You may be confusing the IDE transfer rate with the actual speed of the bus.
The IDE bus speed is the same as the PCI bus - 33MHz.
Since PCI is a 4-bytes wide bus, this gives you a maximum transfer rate of 133 MBytes per second.
| chiwi wrote: | | How do i change it? in dmesg says something about passing the pàrameter "idebus=xx" to the kernel, but, doesnt work for me.. |
Then your IDE chipset doesn't support that mode.
But how have you validated this ?
If you're checking for an increase in IDE bus speed - like I said, you won't get any.
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Kernel & Hardware
