3TB External HDD & Rear SATA Port = Slow Boot

Hi,
I needed additional data storage and got a 3TB Western Digital HDD in a
Vantec NST-330SU3 enclosure. My thought was to connect the external HDD to
the rear eSATA port to take advantage of two-way data traffic. The HDD was
converted to GPD so the drive could be formatted to a single partition
larger than 2TB. Now the boot time has gone from 2.5 minutes to 16 minutes
while the external drive is doing something. I looked at the BIOS and see
the external drive with settings the same as the two internal drives. The
external drive is now connected to the computer with USB 3.0 and the boot
time is back to normal. Transfer rates are 25 to 30 MB/sec.
I have the feeling something somewhere is not right with the SATA
configuration but can't figure it out. Any suggestions?
--
....Dean
OptiPlex 980 MT
Intel Core i7-860 @ 2.8GHz, Lynnfield, Socket LGA1156
Intel Q57 Express Chipset
4GB (2X2GB) 1333M
Microsoft Windows 7 Professional 64-bit
256 ATI Radeon 3450
WD2500 AAJS (MBR) & WD5000AAKS (MBR) Internal
WD30 EZRX (GPD) External Vantec NST-330SU3

Some options :

1) bad esata cable, causing a lot of errors on the bus
2) bad esata circuit inside the external box, causing errors
3) bad esata port on the mb, causing errors
4) would be weird but ... compatibility issues btw the hd and the external
box ( it can happen if you assemble it, it should not if preassembled but
you know murphy... )

anyway slow times as those mean crc errors on the line, and a lot too

"Alessandro Mazzini" wrote in message
...
Some options :

1) bad esata cable, causing a lot of errors on the bus
2) bad esata circuit inside the external box, causing errors
3) bad esata port on the mb, causing errors
4) would be weird but ... compatibility issues btw the hd and the external
box ( it can happen if you assemble it, it should not if preassembled but
you know murphy... )

anyway slow times as those mean crc errors on the line, and a lot too

Thank you for the list of suggestions. I think number 4 can be eliminated
seeing as the HDD is working very well using a USB 3.0 connection. I will
order another eSATA external data cable to see if number 1 could be the
problem. It looks like the 16 minute boot using eSATA is not normal.
--
....Dean
OptiPlex 980 MT
Intel Core i7-860 @ 2.8GHz, Lynnfield, Socket LGA1156
Intel Q57 Express Chipset
4GB (2X2GB) 1333M
Microsoft Windows 7 Professional 64-bit
256 ATI Radeon 3450
WD2500 AAJS (MBR) & WD5000AAKS (MBR) Internal
WD30 EZRX (GPD) External Vantec NST-330SU3

you cannot rule out number 4 unless trying on another pc, sadly. I'm saying
it from personal experience of a box that worked always well with usb, but
the moment I plugged the esata ...

it was a specific seagate hd fw conflicting with the box hw, in fact with a
different disk the issue didn't show up... the fight I had with the shop
that sold the box is another story...