W701 esata port suffering from poor design/qua​lity from manufactur​e?

Question

After having my W701 for 5 weeks, with 2 replacment of MB due to different problems, last time bios and port problems, I got i back from Lenovo today. I had reported it with a no functional/very poor functional esata port.
What happens is that:
With my lacire drive;
When I write to internaldrive everything is ok - when I write from my internal drive to the external it stops and says that the disc is no longer attached.
With my chieftech cabinet with esata port:
Writing from works fine - writing to starts good, then hangs for a minute or so - then drop from 50 MBps til 18 MBps, then continous, and does it again.
When I use them against my HP Homeserver EX495 it works like a charm, so non of the disk is the problem, unless the have some love for my HP, and hate Lenovo - but that would seem rather absurd to me.
The last MB didn't work better, and the new one dosn't either. Anyone who has an idea? I can't belive that 2 MB has the same problem, or? Allthough the IBM technician admitted when asked that he had not tested the esata port, he figured that since it was on MB, and that was changed it would work fine - but obviously that wasn't right.
edit:
I did another test now after packing a .rar file. The transfer to the lacie failed, but to chieftech it went fine. But - sending huge .tiff files was the reason of buying esata disk, so that dosn't really help me, other than telling that sending 100 files will crash, and 1 file is less probable to fail, but has currently a 50/50 chance of doing so.
I tried with the chieftech later - and it repeated the problem - it started with 6 MBps - den stopped - worked again - and so it kept on working.
How I tested this time:
1 file was zipped on my server - 2,5 GB (1)
1 file was zipped on the internal drive - 5,5 GB (2)
Transfer of file 1 from server to drive went fine to Chieftech , but failed on Lacie.
Transfer of file 2 from internal to both Cheiftech and Lacie failed big time. Chieftech froze explorer, and until I plugged the disk out by napping the cable out it wasn't possible to use the computer. Lacie failed after 5 seconds.
The first times I tried to transfer 129 files - and that didn't work any better.

Answer 1

Sorry, but I have no suggestions for solutions to your first post.
But, the W700 can run without RAID; you just need to turn it off. Backup all files before proceeding, during the boot process you can press CTRL + I to enter the RAID BIOS. Simply remove the drives from the RAID and install the OS to HDD 0 or 1. The other HDD will then be an "extra". After doing this you may also be able to hide RAID in BIOS, can't remember 100%, but should be do-able.
Hope this helps
Andy  ______________________________________
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