Like I said before, the IDE & PCI bus frequency CANNOT be changed. You can only change the TRANSFER rate of the IDE bus. You will find that you will not need to change it either as Linux will transfer the data at the maximum IDE Bus transfer rate. The only thing that needs to be changed is to enable DMA . To do that edit the '/etc/sysconfig/harddisk' file. To run hdparm program you need to be logged in as the root user and it's done from the command line. Wolf -----Original Message----- From: Christopher Taylor [mailto:psychocop156@insightbb.com] Sent: Sunday, 1 December 2002 3:46 PM To: psyche-list@redhat.com Subject: RE: IDE Bus Speed OK...where exactly does one change the hdparms at? I'm a newbie at this...I got a "command not found" when I typed hdparm --help at the term. I see in dmesg where it says both drives are transferring at 33 MHz, but I cannot seem to find out how to change this. I assume, as well, that the CPU-Memory Bus speed is not set somewhere by default, i.e. I have to specify it runs at 266MHz? Chris On Sun, 2002-12-01 at 19:27, Wolfgang Gill wrote: > You can't change the IDE bus speed. It's set to 33Mhz (66Mhz if you have a > MBrd with 64Bit slots). The 266Mhz bus speed you are refering to is the > CPU-Memory Bus, and the board will run at that speed without problems. > > However the IDE bus TRANSFER rate can be changed using hdparm (--help for > parameters) > > > Wolf > > > -----Original Message----- > From: Christopher Taylor [mailto:psychocop156@insightbb.com] > Sent: Sunday, 1 December 2002 11:54 AM > To: psyche-list@redhat.com > Subject: IDE Bus Speed > > > In reading the boot information for my RH8 system, I noticed that the > system defaults to 33MHz. It also says to set it using IDEBUS=XX. > Where do I set it at (I assume in grub.conf, correct?) and what are the > limitations of it (i.e. I've got a 266 MHz system bus....can I set it > that fast?) Any input would be greatly appreciated.....just learning > Linux, and need to tweak the machine out for UT2K3. > > Thanks in Advance! > > Chris ###################################################################### Attention: This e-mail message is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Any views or opinions presented are solely those of the author. This e-mail has been scanned and cleared by MailMarshal www.marshalsoftware.com ###################################################################### -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list
