I recently switched on my r3000 (IRIX 5.2) and it stuck in the "power on diagnostics" trying to "initialize the tod clock". It keeps trying but it "can't set tod clock" I am a newbie to these systems and do not know what to do about it. Any ideas? Thanks in advance, Ben Hocker bhocker@direct.ca Comment by Brad Reger of SGI: I've seen this happen after removing a CPU board and then putting it back in. I'm not sure what causes it, but it could be as simple as shorting out the battery/TOD momentarily. When the system comes up, it sees garbage and resets the TOD. I believe that booting unix from that point should fix everything. You might have to set the date/time again with the 'date' command, but it might pick up the date from the filesystem (although the time would probably not be right then). Running the date command from unix ought to make everything happy from there. ----------------------------------------------------- Comment by Brad Reger of SGI on 'can I replace the battery ?': That's hard to say. If you still have the board, and you could swap batteries from another system, I'd say give it a try. It could be as simple as a dead battery, but I suspect it's more than that. And even if it is a battery, we have no way to replace that except to replace the whole board. If you could find your own replacement battery (and that really is the problem) and you're not on SGI support, then it would be alot cheaper. Otherwise, you pretty much have to do the board swap. ----------------------------------------------------- Comment by a related posting: The battery (BT 1)is soldered to the CPU board and held by a clip. An experienced technician probably can replace the battery. You may ask Dan Appleton of Great Eastern Technology. He could be reached at 617- 937-0300 some time ago. ----------------------------------------------------- Comment by john@castleamber.com: Greg (http://www.reputable.com/) mailed me that the battery is indeed *not* soldered! And that a replacement battery might be obtained by Radio Shack. The weird thing is that I removed the HD (with bracket) and inserted it back. After that, the problem occured. However I hadn't used the system for months before I removed the HD, so I am not sure the removing/inserting was the problem. I'll look into it this week, maybe something has a bad contact due to the removing/inserting of the drive and is the battery still sound. ----------------------------------------------------- Own experiences some years back: It is unfortunate that the boot procedure does not skip this error. We replaced the CPU board of a R3K Indigo. ----------------------------------------------------- Comment by postmaster@castleamber.com: The part number is TL-5186 and you can buy it from several sources (it is used in a AT&T lap top). try: +TL +"5186" +battery in AltaVista to see the sources. 3.6V 370 mAh price, about $10,- See: http://www.tadiranbat.com/spec.htm (Cat. nr 15-5186-42000) For full specs + nice picture. Tadiran is also the name on the battery :-) ----------------------------------------------------- Another comment: Ah, I know this one :-). The battery is dead.... It's a TL-5186 and it is used in AT&T Safari notebooks. It's the flat silver thingy near the edge of the motherboard. It seems to be soldered, but remove the rubber band and you can remove it with a screwdriver. Check it's voltage before removing. If it's way below 3.6V, the thing is dead. ----------------------------------------------------- Comment by John Bokma : Yes. It can easily be replaced. I asked SGI and they send one to me... There are several companies in the USA that have it on stock. It's a TL-5186 made by Tadiran. ----------------------------------------------------- Comment by Greg Douglas : It's a round shiny metal can about 2cm. across. and .5 cm high. It may or may not have a black rubber band type holder across the top. It's located on the CPU board, and can be either socketed, or soldered directly to the board. Just checked an R3K board, it's labeled "BT1" and is a TL-5186 3.6V lithium battery, located near the edge of the board, socketed with the black rubber band over the top. ----------------------------------------------------- Regards Ralf.Beyer@dlr.de German Aerospace Center (DLR) Deutsches Zentrum fuer Luft- und Raumfahrt e.V.