Today I moved the c1bhd machine from the control room to a new test area set up behind (west of) the 1X6 rack. The test stand is pictured in Attachment 1. I assembled one of the new IO chassis and connected it to the host.

I/O Chassis Assembly

• LIGO-style 24V feedthrough replaced with an ATX 650W switching power supply
• Timing slave installed
• Contec DO-1616L-PE card installed for timing control
• One 16-bit ADC and one 32-channel DO module were installed for testing

The chassis was then powered on and LED lights illuminated indicating that all the components have power. The assembled chassis is pictured in Attachment 2.

Chassis-Host Communications Testing

Following the procedure outlined T1900700, the system failed the very first test of the communications link between chassis and host, which is to check that all PCIe cards installed in both the host and the expansion chassis are detected. The Dolpin host adapter card is detected:

07:06.0 PCI bridge: Stargen Inc. Device 0102 (rev 02) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=07, secondary=0e, subordinate=0e, sec-latency=0
    I/O behind bridge: 00002000-00002fff
    Prefetchable memory behind bridge: 00000000c0200000-00000000c03fffff
    Capabilities: [40] Power Management version 2
    Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [60] Express Downstream Port (Slot+), MSI 00
    Capabilities: [80] Subsystem: Device 0000:0000
    Kernel driver in use: pcieport

However the OSS PCIe adapter card linking the host to the IO chassis was not detected, nor were any of the cards in the expansion chassis. Gautam previously reported that the OSS card was not detected by the host (though it was not connected to the chassis then). Even now connected to the IO chassis, the card is still not detected. On the chassis-side OSS card, there is a red LED illuminated indicating "HOST CARD RESET" as pictured in Attachment 3. This may indicate a problem with the card on the host side. Still more debugging to be done.