text: <s>[INST] 1394 turbo system losing program I have a 1394 drive controller that has lost its parameters a couple of times when the power was off for a couple of weeks. This had never happened before a month ago, but now looks like it is going to get to be a regular issue. I looked over the controller and didn't see an obvious battery. Can I correctly assume that these drives use a capacitor for memory retention? [/INST] What parameters in particular are lost - all of them or just some? Could it be that these are being written to by an external device and the 1394 not losing the data? If its the battery, then the data must be stored in a different type of memory from the application program, otherwise you would lose that as well. The following is from the KB on the subject (Ans ID 27691). The following isn't what you want to read - so need to be sure its the battery thats causing your issues. BATRAM KEY FEATURES 10 years minimum data retention in the absence of external power Data is automatically protected during power loss Unlimited write cycles Low-power CMOS Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time Summary: The battery back up RAM (batram) for the 1394 GMC & 1394 GMC Turbo is NOT field replaceable, the unit MUST be sent in for repair. The batram is a self-contained lithium energy source and control circuitry. Catalog Number: 1394 GMC;1394 GMC Turbo DocFullNum: G73448994 \\n </s>