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X38 Mobo: IDE HDD speed decreased to 25MB/s , on nforce2 mobo it was 75MB/s

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wolf2009

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#1
I have GIGABYTE EX-38 DS4 mobo with q9450, earlier i had ASUS A7N8X mobo which had nforce 2 chipset with AMD Athlon Xp 2800+ 2.0 Ghz proc .

I have this WD IDE Hard Disk , i tested it with HD Tune Software on both pc's . On old mobo read speed was 75 Mb/s and now it is 25 Mb/s . Why the decrease ? is it becasuse i have IDE burner on the same IDE cable ? that was not being used during this test .
 
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#2
Hmm, I have a HDD and DVD burner on the same IDe cable and get normal speeds for the drive. Have you set the HDD to UDMA 5 in BIOS options, sounds like its running at UDMA 2 which is limited to the speed you're getting. To run UDMA 5 you will need an 80 pin IDE cable, 40 pin also limits speeds to UDMA 2.

Also have you installed chipset drivers?
 

cdawall

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#3
the CD burner forces it to run @ a lower speed (UDMA 2) get a pci IDE card they are like $15
 
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#4
the CD burner forces it to run @ a lower speed (UDMA 2) get a pci IDE card they are like $15
Doesn't on my P35 board which is similar to x38. It's running off the onboard Marvell controller, should be some options in BIOS to change UDMA mode.
 
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wolf2009

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#5
Hmm, I have a HDD and DVD burner on the same IDe cable and get normal speeds for the drive. Have you set the HDD to UDMA 5 in BIOS options, sounds like its running at UDMA 2 which is limited to the speed you're getting. To run UDMA 5 you will need an 80 pin IDE cable, 40 pin also limits speeds to UDMA 2.

Also have you installed chipset drivers?
yes chipset drivers r installed .
 

cdawall

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#6
Doesn't on my P35 board which is similar to x38. It's running off the onboard Marvell controller, should be some options in BIOS to change UDMA mode.
it will depend on what CD drive you are using old ones wont run ATA100
 
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#7
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wolf2009

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#8
Does it say if it's running at UDMA 5 mode in the BIOS?
there is no such option in bios. other thing i noticed is, that my hard drive is set as slave and burner is master. i didn't find an option to change this . does this have any effect ?

i dont know what the jumper settings are to set master and slave.
 
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#9
You would need to set the HD to master using jumpers on the back of the drive. It should say on the stick on top of your drive where to put the jumper.