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IDE Bios configuration with SATA drive?
I have a P4P800, in my bios, it has a setting for IDE Configuration. Once I go into it, it looks like this:
Onboard IDE Operate Mode: [Off] [Enhanced Mode] --- selected. Enhanced Mode Support On: [S-ATA] [P-ATA] [S-ATA + P-ATA] --- selected. My question is about the Enhanced Mode Support. My only hard drive is a WD 160GB SATA drive, partitioned like 5 times. It boots from this drive as well (obviously if its the only HD). I also have a DVD-rom as IDE1 Master, and a DVD-Burner as IDE1 Slave. I figured if I am running both SATA and IDE devices that I should select [S-ATA + P-ATA], but [S-ATA] was actually the default choice. Furthermore, my system seems to boot much faster and perform slightly faster if only [S-ATA] is running. If I choose [S-ATA] only, is it slowing down my IDE DVD drives? The manual doesn't really explain the diff, and when you should use one of the other. Seems most of you know way more about this stuff than I do, I would appreciate some insight. Thanks, Dennis |
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Thanks man, I'll put it on [S-ATA] only
On Fri, 23 Apr 2004 10:53:25 -0500, (Paul) wrote: In article , wrote: I have a P4P800, in my bios, it has a setting for IDE Configuration. Once I go into it, it looks like this: Onboard IDE Operate Mode: [Off] [Enhanced Mode] --- selected. Enhanced Mode Support On: [S-ATA] [P-ATA] [S-ATA + P-ATA] --- selected. My question is about the Enhanced Mode Support. My only hard drive is a WD 160GB SATA drive, partitioned like 5 times. It boots from this drive as well (obviously if its the only HD). I also have a DVD-rom as IDE1 Master, and a DVD-Burner as IDE1 Slave. I figured if I am running both SATA and IDE devices that I should select [S-ATA + P-ATA], but [S-ATA] was actually the default choice. Furthermore, my system seems to boot much faster and perform slightly faster if only [S-ATA] is running. If I choose [S-ATA] only, is it slowing down my IDE DVD drives? The manual doesn't really explain the diff, and when you should use one of the other. Seems most of you know way more about this stuff than I do, I would appreciate some insight. Thanks, Dennis The manual has a couple of sections on setting up the disks. However, after visiting Abxzone and searching around, I'm getting the distinct impression that the BIOS has "too many options". In other words, one of the BIOS controls seems to be redundant. If you follow the manual, the [P-ATA] and [S-ATA+P-ATA] modes are for use with the Legacy (or Compatible) Mode of operation. With an older OS, if you want disk drives to be supported without a hassle, the SATA drives are made by the hardware to appear as if they are on a PATA port. Windows is hardwired for IRQ14 and IRQ15 and PATA interfaces, so having the Intel Southbridge map the SATA drives, to take the place logically of some PATA slots, means you can install an older Windows OS without a problem. The restriction by doing this, is only four drives can be used, when the wiring supports six drives. http://www.abxzone.com/forums/showth...984#post608984 In Enhanced mode, really what is happening is, all six slots are available. Four PATA drives and two SATA. There really shouldn't be a "choice" to make for the mode of the drives in this case, and the manual recommends the [S-ATA] setting. In Abxzone, they comment that the other choices are slower, and possibly slower transfer modes are being selected for some reason. I cannot determine, without reading a few thousand more posts on Abxzone, just what the other modes might be doing. At the very least, the [S-ATA] choice, when using Enhanced mode, seems to be the fastest one. Since the disk modes for the most part seem to be mutually exclusive of one another, that makes the Enhanced versus Legacy setting kind of redundant. I don't think these new settings are covered over here yet, but maybe you can find them. I didn't see them when I took a quick look: http://www.rojakpot.com/FreeBOG.aspx HTH, Paul |
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