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mellow8th

Poor Samsung Performance

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Hi All,

First Post!

I'm having a very strange problem with HD performance.

I've got 2 identical Samsung Drives, one set as Master and one as Slave on the Primary IDE Channel.

One is the 120gb System drive, in two partitions, and the second is a 160gb drive.

I'm experiencing huge system slowdown, so have checked everything with a million benchmarks etc.:

The results were some what confusing - on the 120gig OS drive, I get transfer rates of 3-5Mb/s, whilst on the 160 gig I get 55mb/s +???

I even get more bandwidth off my USB2 flash drive !! (7/8Mbs)

This is obviously driving me insane:

Steps I've taken:

1) Defragged/error checked/ used lots of diagnostics (almost too many to list)

2) Checked Jumpers

3) Virus scanned/shut down unecessary services and processes etc..

4) Checked Bios for anything odd.

I'm not sure what I'm looking for on this drive - presumably there is some firmware issue, or something not enabled on the Drive?

ANY ideas would be welcomed.

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Hmm... I hope I did understand. Was the setting already "use dma if available"? In that case: What motherboard / chipset are you using? Maybe IDE chipset drivers should be upgraded (from your motherboard manufacturers website).

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The thing is, the setting was already on "Use DMA if available"

and yet still running in PIO;

DMA *should* be available, its a week old drive, and the same model line as the second drive...

They've got identical BIOS settings as well..

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These are my exact Specs:

AMD Barton 2500 @ 1.8mhz

1 Gig Crucial 2700 RAM

Sapphire 256MB 9600XT with VGA silencer

120 Gig Samsung Spinpoint HD

160 Gig Samsung Spinpoint HD

200 Gig LaCie External USB 2 HD

Antec Sonata Case

120mm Antec Case Fan

Zalman Aclu 7000 radial heatsink cooler

Asus A7v600 Motherboard

The Mobo has a VIA chipset; I've updated the "4 in 1" drivers already..

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Try putting the other drive on secondary controller. You can also try putting the boot drive on secondary controller - just change the boot order / settings so that the system will still boot. I'm running out of advice, so I hope some more experienced SR members will soon appear. :)

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By putting the second HD on the Second IDE channel as Slave and running the OS drive on the Primary, as believe it or not, Slave makes everything work;

Must be something to do with having 2 drives on one IDE channel...

VERY wierd... but I've found the tempoary solution...

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Hmm, ok you can try removing the IDE controller in device manager that the drive is attached to, and rebooting (Windows will reinstall it on reboot). That sometimes lets Windows redetect the drive at its proper speed.

Sometimes Windows will fix a drive in PIO mode if it detects too many errors (real or not). Removing the device usually clears that up; but if it still doesn't I'd start suspecting the cable or the drive itself.

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