Not sure what PUIS and PHY are but I had the same problem with a WD SATA 
drive not showing up.  The first time the drive was DOA and I had to return 
it but the replacement didn't show up either.  The first time nothing worked 
so that is when I RMA'd the drive but on the replacement, disk management 
showed that the drive was not initialized.  I initialized it and then 
formatted and now the system recognizes the drive and it works properly. 
This is a 750GB caviar green drive and so far it is the only SATA drive, WD 
or other make, that I have ever had this issue with.



Matt
-----Original Message----- 
From: Tom Waddell
Sent: Sunday, October 31, 2010 7:20 PM
To: [log in to unmask]
Subject: [PCBUILD] HD jumper settings - finding HD

I have a new WD SATA HD. My computer does not see it when I open explorer. 
It shows up under devices but has zero capacity listed under properties. 
There are also 2 jumper settings, one enables PUIS and the other limits PHY 
to 3Gbps.

Any thoughts on why devices sees the HD but explores does not?

Exactly what is PUIS and PHY?

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