I don't know if anyone cares, but those who have an older (5 month +) 3620 may be interested in reading this; it caused me to be up till 3:30 am and leave a good TGIF's dinner early. ---------- Forwarded message ---------- Date: Sat, 18 Apr 1998 17:18:31 +1000 (EST) From: William Roy <wroy@cisco.com> To: network@nac.net Subject: 3620 Field Notice Cisco 3620 OIR Interrupts, Power Problems Field Notice FN-1997-335-1 RCN R97-3714, R97-3757 Products Affected CISCO3620, CISCO3620-CH, CISCO3620-DC, CISCO3620-RPS, PWR-3620-AC=, PWR-3620-DC=, ACS-3620RPS= Problem Description The power supply connector in the CISCO3620 sometimes does not make good contact with the motherboard power connector. This leads to low voltage on the motherboard. Because of this, the voltage on a network module may be too low for the network module to operate. The network module "drops out" of the system, which looks to the router like the network module has been removed. The most common symptom of this problem is an OIR (On-line Insertion and Removal) interrupt message on the console followed by a router halt. The console error message is of the form: %OIRINT: OIR Event has occurred oir_ctrl 10 oir_stat CFCC Note: The IOS does not support On-line Insertion and Removal on the Cisco 3600 Series. Solution The root cause of the problem was traced to the power supply vendor who was using a power connector that was different than the connector Cisco specified. All CISCO3620s manufactured after November 26, 1997 have the correct power supply connector. Any CISCO3620 exhibiting these symptoms should have the power supply replaced, or be replaced with a CISCO3620 unit with the correct power supply connector. As an interim measure, you may be able to remove the power connector from the motherboard, clean the motherboard contacts and replace the power connector. Instructions can be found in the Cisco 3600 Series Power Supply Configuration Note. This is a temporary measure and the power supply or CISCO3620 chassis should still be replaced. A