HP Compaq Elite 8200 Ultra-Slim Desktop PC

Overview

The "Ultra-Slim" desktop (USDT) edition of the HP Compaq Elite 8200 desktop computer. It doesn't have any expansion card slots, however it does have integrated WiFi/wireless that doesn't affect the realtime performance of LinuxCNC.

Specifications

lspci output under Ubuntu 18.04:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b4)
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
00:1f.0 ISA bridge: Intel Corporation Q67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
01:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)

BIOS

The BIOS is stored on the chip "U19" on the motherboard: a Macronix MX25L6445EM2I-10G (marked MXIC MX 25L6445E M2I-10G)

Macronix MX25L6445EM2I-10G | DigiKey

https://www.macronix.com/Lists/Datasheet/Attachments/7330/MX25L6445E,%203V,%2064Mb,%20v1.8.pdf

https://www.mxic.com.tw/en-us/products/NOR-Flash/Serial-NOR-Flash/Pages/spec.aspx?p=MX25L6445E&m=Serial+NOR+Flash&n=PM1736

There is also an unpopulated/keyed box header "E16" near the BIOS chip, probably meant for in system programming. Here is the pin mapping:

U19 Pin	E16 Pin	Function
1	1/2	CS#
2	5	SO/SIO1
3		WP#/SIO2
4	8	GND
5	3	SI/SIO0
6	7	SCLK
7		NC/SIO3
8	6	VCC

NOTE: E16 has a very low resistance resistor between pins 1 & 2, thus they are effectively tied together.

Online Resources

HP Compaq 8200 Elite Ultra-slim PC User Guides | HP® Customer Support

HP Compaq 8200 Elite Ultra-slim PC Product Specifications | HP® Customer Support