Processor / System Bus Dual Intel® Xeon™ processors supports EM64T with 2M L2 cache 3.6+ GHz Intel Dual Core Xeon - Paxville2.8GHz is supported   Core Logic Intel® E7520 Intel®ICH5R Intel® 6700 PXH   Memory Dual Channel DDR2 400 ECC Reg DIMM x 8 Maximum up to 16GB   Board Size / Form Factor 12" x 13", EEB 3.51 compliant Expansion Slots 4 x 64bit/ 133 MHz PCI-X 1 x 32bit/ 33MHz PCI 1x [PCI-E x 8 slot]   IO Controller SCSI: AIC-7902 PCI-X Dual U320 SCSI SATA: Intel® ICH5R, 2 ports Dual Channel IDE support UltraATA 33 / 66 / 100 /133   On Board LAN 2 x Broadcom® BCM5721PCI-E Gb LAN On Board VGA ATI® RAGE-XL / 8MB Onboard I/O Connectors 1 x Floppy Connector 24-pin ATX power connector 8-pin ATX 12V power connector 1 x PCI Slot 2 x Front USB 6 x Fan 2 x Front LAN LED   Rear I/O Connectors 1 x External Serial Port 2 x External USB Port 1 x VGA Port 2 x RJ-45 PS/2 Mouse/Mouse   OS Support Window Server 2003 Standard/Web/Enterprise Edition Windows 2000 Server / 2000 Advanced Server Windows XP Professional SP1 Windows Server2003 Enterprise Edition Windows Server2003 Standard Edition Redhat Enterprise Linux AS3.0 UP3/UP4/UP5 ; AS4.0 UP1 Redhat9.0 SuSE Linux 9.0   Management Solution ASWM2.0 Environment Operation temperature: 10℃ ~ 35℃ Non operation temperature: -40℃ ~ 70℃ Non operation humidity: 20% ~ 90% ( Non condensing)   EMI US (FCC, CFR47 Part 15, Class B) Europe (CE, EN55022 & EN55024)

Most notable features of the PVL-D/SCSI are its on-board VGA, U320 SCSI controller, and its shortage of SATA ports - it only has two. 

Here are some photos of the PVL-D/SCSI.  The middle image shows the 2-channel Adaptec SCSI controller and its mini-PCI-X socket allowing the addition of a ZCR RAID-5 card.  The third pic is of the rear panel area. 

POST and BIOS setup pix below.  Please note that the BIOS is revision 1003.  Earlier versions did not properly support Paxville's dual cores.

POST Screen with logo	POST Screen, no logo

Main	IDE Config Screens:
	System Information:	System Memory Information:
		Processor Information:

Advanced	Advanced CPU Settings:
	Advanced Chipset Settings:	Northbridge Chipset Configuration:
	Advanced Onboard Devices Settings:	USB Configuration:	USB Mass Storage Configuration:
		SuperIO Configuration:
	Advanced PCI/PnP Settings:
	Power Configuration:	APM Configuration:
	Hardware Monitor:

Server

Configure Remote Access:

Security

Boot	Boot Device Priority:
	Boot Settings Configuration:

Exit

With HyperThreading OFF and using only one of the two cores, we see two usable threads:

 

Here, HyperThreading is OFF and both cores are enabled:

 

Now if HyperThreading is ON, and both cores are in use, we see EIGHT THREADS!

 

This is what CPU-Z reports:

We used Apacer PC2-3200 2x512MB sticks for this board.

Overall, the PVL-D board and the 2.8GHz Paxville CPUs are solid, hulking behemoths, similar to big-blocks of the '70s.  They are powerful, intimidating, and exude pure power.  However in this day and age, there are more efficient, refined, elegant, and even more powerful solutions available.  Just like a turbo-charged B18C5, newer Xeons use less power, produce less heat (and therefore noise), while being more computationally efficient than its predecessors... 

First, here's how TWO processing threads performed in the tests:

Now, we move on to FOUR processing threads.  These are four actual cores, no hyperthreading here:

 

Lastly, we tested EIGHT logical, hyperthreaded cores: