Didn't realize it was a laptop, but if there was one drive original, and now 2, it's possible that 2 low power drives use more power at startup than the original. Can you put a scope or meter on the power to see if there is a sag? Never had noticed on XP, or other OS, the option of sequencing startup. I suppose one could write a driver to do that, but that's well beyond my humble mind. :) I believe the current Ubuntu will handle NTFS drives, and the current download ISO CD image has on the startup menu to boot a "live", or install, with other options. And there is an option with "live" running to do the install. Big improvements over the last couple of years, but although I like Kubuntu feel when running, I have had nothing but grief with install and settings, especially the ATI video. They just can't seem to leave a stable situation alone. They change the kernel or something, and ATI is slow to react, and you are left hanging. :( On 3/30/2010 3:19 PM, Dr Skip wrote: > It's a laptop, so the PS is fixed, and the drive carriage has a pc board with > soldered connectors - no cables. So far, with drive always on, no problems. I > guess it could be power, but based on sound, I don't think both drives spin > down at the same time, yet it still happens when one spins up. With both AC and > battery on, one would think it would handle the 'surge'. > > I _thought_ I heard kind of a sagging spin up with a different higher-draw > drive in there, but it could have just been the way it normally sounds. it > didn't have problems as a single drive, only when 2 are present. Still, what > would the sequence be if power sagged on spin up? I can't find a setting > anywhere in the registry or online to tell XP to wait longer for spin-up. I > assume there is a drive-ready indication and it would wait for that, then read, > but it's been a long time since I did PC hardware design. I'm a dinosaur... :( > Yes, same as DVDs, etc. It works fine waiting for those. > > The only Linux I've got for it is on live-CDs so far. Just 2 NTFS drives right now. > > Of course there's the perennial debate on whether spinning the drive up/down > all the time or letting it run is better for the drive. Maybe I'm being forced > to do the best thing??? ;) > > > On 3/30/2010 1:55 PM, Carl Denk wrote: > >> Another thought, is the power supply adequate. Even then if it's not a >> energy saving power supply, might consider swapping it out. I did >> recently and the Kiil-a-Watt said the new on 12 hours a day would take 2 >> or 3 years to pay the $70 cost for around 450 watts. The old one was 350 >> watts, and cheaper power supplies are out there, but they use a lot more >> power. >> >> XP should wait till there is drive ready, it does that also with DVD, >> CD, floppies, etc. Might see what the reaction is with SATA connected, >> but not power. SATA is supposedly hot swap. Maybe someone else can >> comment on if it is safe to have SATA connected and plug/unplug the >> power. The IDE and floppies have a drive ready signal, don't know how >> SATA handles that. >> >> Googled SATA Drive Ready, here's one >> http://www.mail-archive.com/linux-raid@vger.kernel.org/msg04257.html >> >> Note possible bad cable issue! >> >> On 3/30/2010 1:36 PM, Carl Denk wrote: >> -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist