On 2020-12-29 at 12:08, Felix Miata wrote: > The Wanderer composed on 2020-12-29 07:57 (UTC-0500): > >> Romualdas Taluntis wrote: > >>> -try booting with your 5700 in a secondary PCI-E slot and your >>> old GPU in the main slot, check if Debian detects both video >>> cards, force certain applications to use new video card and use >>> it like this if it works. > >> I... can see how that might work, but it's not an approach I'd >> find satisfying, or care to take. Thanks for suggesting it, >> though. > > If it is a PS issue, then that would confirm it, but that assumes you > have enough 6 or 8 wire power connectors for both cards. I probably do, although I'd have to dig them up; that's one advantage of PSU modularity. > That brings to mind another idea about PS capacity. Given you need 7 > SATA ports, you could try booting with the power connectors for all > but the one you are booting from disconnected, giving the PS some > reserve capacity to use for the 5700. If it it proceeds to display > Grub instead of locking up, you know where the fault lies. Trouble is, six of my seven drives (the seventh being an optical drive) are joined into two RAID arrays: a two-drive RAID-1 array of fast storage for programs and the OS and so forth, and a four-drive RAID-6 array of slower bulk storage for everything else - and owing to a misunderstanding when I designed the layout, /var is on the latter, even though it and its exact contents are apparently necessary for system operation. I could at the furthest extreme cut things down to one drive from the RAID-1 array and two from the RAID-6, but I'd be hesitant to do that, since I've had data-loss and array-loss scares before; the latter took 3-to-9 months and over $5000 to recover from. That said, I'd be less concerned about booting to removable media with *all* of the drives disconnected, and that might achieve the same end. That goes on my list of things to try next time I do a swap-out for testing. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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