Problem: Extremely low read speeds on Samsung 2TB

[savagefarmer]

Hello gurus,

I have been struggling with this problem for a while now, I tried some forums but nobody seems to know what's
going on. I hope some guru here can help me! I have a system with the following setup:

AsRock K7vt4a pro
AMD Athlon XP 3000+
2x1GB PC3200 DDR1 (Running at 2700)
Eminent PCI Sata controller
Samsung 2TB Spinpoint ECO Green (HD204UI)
Windows Server 2003 (Fully updated)

I have hooked up the Samsung 2TB disk and another 1TB Seagate disk to the sata controller. Now when doing
benchmarks I get the following results:


Seagate 1TB


Samsung 2TB

Since I'm using a SATA2 HDD on a SATA1 controller (through PCI) I wasn't hoping for breakneck speeds, but this
is crazy. I'm struggling to figure out why the read speed is so slow: I'm not even getting 4 MB/s. At first I
thought the Samsung disk was misaligned, but that can nowhere near explain the slow speed.

Does anyone have a clue what might be causing this? I have checked:
- The V-Raid software that comes with the controller shows both drives are running DMA mode
- I tried the controller+2TB HDD in a different computer (Win7), where I reached 80+ MB/s, both reading and writing

So I'm starting to think its an issues with Win2003...

Thanks for any help!
Sav

[poehere]

Download MHDD and test your HDD from there. it is here on the forum. Try it and see what you find out.

[scratchy]

Are you running the drive in SATA II mode? There is usually a jumper you can put on to switch modes on the drive. If you are running the drive in SATA II mode on a SATA I Motherboard this may be the problem.