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New Disk Writes Data Very Slowly

I just installed a new IDE HD, a Seagate 320 gb ATA/!00 as the Win XP boot drive and immediately noticed it's very slow to copy files from the old drive.

It's the primary master and the old drive is on the other channel. DMA is enabled for both. It seems to be writing at about 3 mb/s. I've run some disk utilities on it but got no errors.

I'm wondering if I should return it.

Thanks.
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radyaren
Asked:
radyaren
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3 Solutions
 
mastooCommented:
How do you know it's not the reading of the old drive that is slow?  What else is on the secondary channel?  If you've got some unformatted space on the new drive, try formatting it and watch the bytes/sec.
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mastooCommented:
And in windows you can go to the device manager and look at the advanced setting for the primary ide channel and verify what the current transfer mode is.
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radyarenAuthor Commented:


> How do you know it's not the reading of the old drive that is slow?

I copied a 800mb folder from the old to the new, it took nearly five mins. The same folder copied on the old drive took a minute and a half.

> What else is on the secondary channel?

Nothing.

> If you've got some unformatted space on the new drive, try formatting it and watch the
> bytes/sec.

I don't see where the Windows format tool displays that.

> And in windows you can go to the device manager and look at the advanced setting for the
> primary ide channel and verify what the current transfer mode is.

The DMA is enabled, as I said above, but the current transfer mode says PIO mode, and is grayed out. But for the old drive it says Ultra DMA Mode 2.

Perhaps that's it. What if I swapped the cables?

Thanks.


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Dean ChafeeIT/InfoSec ManagerCommented:
Is it possible that you are using an old 40 pin cable on the secondary IDE to the old drive?  Most newer drives require the newer 80 pin IDE cable. May be worth trying a new cable.
FS-
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knoxzooCommented:
Check in your BIOS.  Just about all BIOS's have additional config settings for the IDE devices attached to the controllers.  Make sure it's configured correctly for both drives.
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mastooCommented:
Yes PIO speeds are down in that range.  You for sure want 80 conductor cable and check bios for autodetect settings as above.
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knoxzooCommented:
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radyarenAuthor Commented:
FixingStuff wrote:

> Is it possible that you are using an old 40 pin cable on the secondary IDE to the old drive?  Most > newer drives require the newer 80 pin IDE cable. May be worth trying a new cable.

I think you must mean 80 conductor cable as mastoo says.

Can I check this in the BIOS?
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radyarenAuthor Commented:

knoxzoo wrote:

> Check in your BIOS.  Just about all BIOS's have additional config settings for the IDE devices
> attached to the controllers.  Make sure it's configured correctly for both drives.

Both are on AUTO. But there are manual settings from 2 to 6. Which is faster? 2 or 6?
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mastooCommented:
Your bios won't show which cable you've got.  Frequently the secondary channel is 40 conductor so you can compare the two.  But if they look the same you'd either have to count the ridges or find some more cables to compare to.  2 - 6 are probably the Ultra DMA mode.  6 being the fastest.  Probably try 5 and see what happens.  Auto should be working though, so if you've got the proper cable I might start thinking OS problem as knoxzoo suggests.  I guess a quick test since it currently shows as PIO would be to swap drives, boot off the old drive, and see what the OS says for mode on the secondary (new) drive.  
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radyarenAuthor Commented:
Ok, well, I did try a new cable, and that's changed it from PIO to Ultra DMA Mode 4, much, much faster and on a par, at least, with the old drive.

So I'm happy with that solution.

 I can't see any other fair way but to split the points.

170 each to mastoo and FixingStuff and 160 to knoxzoo .

I hope that is satisfactory to everyone. Thanks for your help.
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Dean ChafeeIT/InfoSec ManagerCommented:
"I think you must mean 80 conductor cable as mastoo says. "  Yes... 80 conductor, as they are all 40 pin connectors :-0
Glad to help with the solution.
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