Problem with SATA/PATA Combo

Jul 9, 2004
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Put this in the Tech. support but no response so far, so here goes...

My machine boots up fine when just the SATA drive is hooked up (windows installed on that drive) but when I add a slave PATA drive, the machine cannot find a boot disk. I have the latest bios and set things appropriately in it but it still does not seem to work. Any ideas? Thanks.
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
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SATA always has to be a master. And if you use a regular IDE drive in the system, it also has to be a master. You can't put a slave on a SATA drive.

Part of the confusion is the use of the term "PATA" instead of IDE. They are the same. So making a PATA slave to a SATA is the same as trying to slave a IDE to a SATA - can't be done.
 

Dahak

Diamond Member
Mar 2, 2000
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also i have seen, mainly on most asus boards, that when you add another hard drive, it changes the boot order of the drive. check the boot order and see if it is still set to boot from your sata drive first
 

SVT Cobra

Lifer
Mar 29, 2005
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Originally posted by: corkyg
SATA always has to be a master. And if you use a regular IDE drive in the system, it also has to be a master. You can't put a slave on a SATA drive.

Part of the confusion is the use of the term "PATA" instead of IDE. They are the same. So making a PATA slave to a SATA is the same as trying to slave a IDE to a SATA - can't be done.


good explanation
 

Cohort

Junior Member
Jun 16, 2005
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Originally posted by: corkyg
SATA always has to be a master. And if you use a regular IDE drive in the system, it also has to be a master. You can't put a slave on a SATA drive.

Part of the confusion is the use of the term "PATA" instead of IDE. They are the same. So making a PATA slave to a SATA is the same as trying to slave a IDE to a SATA - can't be done.

I understand what you wrote, but how do you set up the SATA drive as a master when there are no jumpers?
I ask because I have the same problem. I am trying to use a SATA drive and got windows to install on it but when ever I reboot it says there was a hard disk failure. I also want to use a ide drive as a junk drive for my downloads and music. Any chance yo uwouldnt mind explaining in more detail how to do it?
 

Continuity27

Senior member
May 26, 2005
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Originally posted by: Cohort
I understand what you wrote, but how do you set up the SATA drive as a master when there are no jumpers?
I ask because I have the same problem. I am trying to use a SATA drive and got windows to install on it but when ever I reboot it says there was a hard disk failure. I also want to use a ide drive as a junk drive for my downloads and music. Any chance yo uwouldnt mind explaining in more detail how to do it?

Wait... your IDE hard drive has no jumpers? That's impossible...

SATA hard drives don't have jumpers, and don't need jumpers.. there is no master or slave, because it's one drive per channel.

Is your drive IDE or SATA?
 

qbackin

Banned
Dec 26, 2004
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Originally posted by: Continuity27
Originally posted by: Cohort
I understand what you wrote, but how do you set up the SATA drive as a master when there are no jumpers?
I ask because I have the same problem. I am trying to use a SATA drive and got windows to install on it but when ever I reboot it says there was a hard disk failure. I also want to use a ide drive as a junk drive for my downloads and music. Any chance yo uwouldnt mind explaining in more detail how to do it?

Wait... your IDE hard drive has no jumpers? That's impossible...

SATA hard drives don't have jumpers, and don't need jumpers.. there is no master or slave, because it's one drive per channel.

Is your drive IDE or SATA?


He is trying to use Sata AND Pata
 

Continuity27

Senior member
May 26, 2005
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First of all, there's no problem with using Serial ATA hard drives and Parallel ATA (IDE) hard drives at the same time. The problem people seem to be having here, is the BIOS has set the IDE hard drive as a higher priority in the boot order. If Windows is installed on the Serial ATA drive, you'd better make sure that's the first hard drive in the boot order. Some motherboards make IDE come first, some make SATA come first. Change the order yourself in the BIOS.

What the computer is doing, is asking the IDE hard drive "Where's your operating system?" and it replies "I don't have one." That's invalid boot disk, hard disk error. If you flip flop the priority of the SATA hard drive and IDE hard drive.. you won't have this problem.

As far as what to set the jumpers to make it work for serial ATA... what is the point? You can use your parallel hard drives on IDE and serial hard drives on SATA, they also make adapters to put on the IDE slot of the hard drive, and have a SATA connector coming off that, that's the only reason to set jumpers of a hard drive to work on SATA, and it depends on the adapter. Some like Master, some like Cable Select.
 

Cohort

Junior Member
Jun 16, 2005
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I figured out what the problem was. After I made my pata drive a master drive, instead of slave, and for some reason I had to make my pata drive listed in my bios as 1st then my sata drive and it worked. The logic I was using and what was posted here makes that seems backwards. But it worked so I am not going to worry about it.
 

Continuity27

Senior member
May 26, 2005
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Originally posted by: Cohort
I figured out what the problem was. After I made my pata drive a master drive, instead of slave, and for some reason I had to make my pata drive listed in my bios as 1st then my sata drive and it worked. The logic I was using and what was posted here makes that seems backwards. But it worked so I am not going to worry about it.

Is your operating system on the IDE hard drive?
 

stevty2889

Diamond Member
Dec 13, 2003
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A couple of questions. When you installed windows to the SATA drive, was the PATA attached? I have found that when installing an OS to a SATA drive, it works best if all other hard drives are disconnected. Also, when the PATA drive is hooked up, you probably need to go in to bios to change which hard drive it boots from first, it's most likely changing to the PATA drive in bios after you install it and therefore won't boot..
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
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The jumperless SATA drive is defaulted to Master. You don't have to do anything. To use an IDE drive in your system, set its jumpers to Master as well and connect to an IDE channel.

Then go to your BIOS and set the boot order so the SATA is the boot drive. The IDE drive will just be an additional lettered drive.
 

Cohort

Junior Member
Jun 16, 2005
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I think my problem was I did not f6 to install the other type raid drivers. Atleast that is what Epox told me when they got back to me. Maybe that is why I had to work around it backwards like. I appreciate the suggestions, cause I wouldnt have gotten anywhere if I didnt read to change my pata drive to a master boot.