There are 3 types of case that HP use for their enterprise desktops.  These are 
USFF (Ultra small form factor), SFF (small form factor) and CMT (Convertable 
Mini Tower).  Only the CMT version has full height slots.  The CMT case can 
either be used upright or it can be turned on it's side and the DVD drive can 
be altered for either.  It will just fit into a rack case on it's side, and 
it's about 4u in height.  Here is a link to the service manual.


---- On Thu, 15 Feb 2018 00:54:58 +0000 Rich Stivers 
<> wrote ----

Thank you for sharing all your experiences. I appreciate it. One more question, 
do HP8300's typically have some full-height

 PCIE slots? Most of the 8300's I found on Amazon that listed expansion slots 
had low profile PCIE slots only. For my AS cards

 I need full-height x1 slots.

Rich Stivers

On 2/13/2018 18:17, Steve Varholy wrote:

We are using external USB interfaces on the USF HP8300's. On the mini-towers, 
we are using M-Audio cards that are now obsolete.

I saw you also asked on the list about how long the Dell Optiplexes lasted. We 
were using 755 minitowers. We got 3-4 years out of them before the motherboards 
developed capacitor problems. I had three all go legs up within a 2 1/2 month 

I highly recommend enterprise/corporate machines rather than white-box built 
ones for three reasons: 1. tool-less cases. They are designed for quick 
component replacement. 2. Long system service lifespan - there are no major 
changes for the life of model, so, for example, all you need are the drivers 
for the 8300. No wondering whether your box is a RevA/B/C, etc.� 3. HP/Dell 
maintain the availability of the drivers and documentation online�for 
decades. No worries about not being able to obtain the drivers you need.

Steve Varholy

 President and General Manager


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