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Added a second HD only recognitizes P10?

X

Xracer1968

Junior Member
Hi,

First post to the board, my friends over at corvetteforum.com suggested I ask this of you folks.

The preface to this is I know just enough to get me in deep water with computers.

I added a Maxtor Diamond 200 gig drive to my existing Maxtor 40 gig drive to be used as a data drive.

When working with the primary drive (0) 40 gig everything is very speedy. When I work with the secondary drive (1) 200 gig things are very slow. Both drives are connected directly to the MB with a single data cable.

I took a look at the IDE Channel properties and it shows Device 0 at Ultra DMA Mode 2 and device 1 at P10 mode.

I have the latest A12 Bios from Dell on the board so how do I make both drives run the same? Dell help site did not show anything that looked promising.

On a secondary note, I have looked at ATA 133 Cards at Newegg but all of them seem to have a different setup for PCI slots than I do. Mine has one notch and all of the cards have two?

What am I missing there?

Joe
 
I took a look at the IDE Channel properties and it shows Device 0 at Ultra DMA Mode 2 and device 1 at P10 mode.
Click to expand...

That's "PIO" (Programmed Input/Output) mode, not "P10" mode. 😛 Googling on "drive stuck in PIO mode" or some variation will probably turn up info on this problem.

On a secondary note, I have looked at ATA 133 Cards at Newegg but all of them seem to have a different setup for PCI slots than I do. Mine has one notch and all of the cards have two?
Click to expand...

Many of them can also be used in 66Mhz PCI slots (which are longer and have two notches). Almost all such cards are backwards compatible to regular PCI.

When working with the primary drive (0) 40 gig everything is very speedy. When I work with the secondary drive (1) 200 gig things are very slow. Both drives are connected directly to the MB with a single data cable.
Click to expand...

I would check that you have the drives jumpered correctly. The one at the end of the cable should be set as the 'master', and the one in the middle should be the 'slave' (there is usually a little diagram on the drives to show how to set the jumpers). You can usually also set them both to "CS" (Cable Select), and everything will work out OK, but sometimes with older drives or cables you have to set them manually.

Once you are sure they are jumpered correctly, you should be able to change the second drive to DMA mode (which will make performance not suck). However, note that there will always be performance degradation when you are accessing both drives simultaneously (such as copying files from one drive to the other) if they are on the same cable. You can get around this by putting each one on its own IDE cable.
 
Hi, To simplify: Old style cables have to have Master and Slave for two drives on one cable. It makes no difference which connectors are used for MB or either drive. Newer cables are CABLE SELECT (CS). They have color coded connectors. Both drives on a cable must be set to CS. The postition on the cable determines which will be C: and which d: (or E: and F). Standard cables are wired straight though pin number to pin number. CS cables have the Drive Select leads crossed. Look at a floppy cable. Those have always been CS. The A: drive is always after the crossed leads. Hope this helps, Jim
 
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