gorbachev Posted February 8, 2021 Share Posted February 8, 2021 I have an Unraid server I've been running since 2011 with no issues using i3-540 CPU (LGA1156). I upgraded the CPU to a i5-760 last night. The server booted just fine, and Unraid software is running, but all of the disk drives connected with a SATA controller (LSI 9201-8i) are missing. Unraid is only seeing the six hard drives connected directly to the motherboard. Again the setup is working just fine with the i3-540 CPU installed, and worked fine again after I installed the i3 CPU back. No other changes were made. Any ideas? Did I miss a BIOS setting I should have tweaked? Or did I get a busted i5 CPU? Quote Link to comment
JonathanM Posted February 9, 2021 Share Posted February 9, 2021 Can you move the LSI to another slot and try again? Quote Link to comment
gorbachev Posted February 9, 2021 Author Share Posted February 9, 2021 12 hours ago, jonathanm said: Can you move the LSI to another slot and try again? I have two, and no free PCI-Express slots. I'm going to try and see if things work better if I stick a cheap PCI graphics card on the empty PCI (non Express) slots. Quote Link to comment
gorbachev Posted February 14, 2021 Author Share Posted February 14, 2021 Turns out this required a change in the syslinux bootloader config file (syslinux.cfg) as described here: Adding pci=realloc=off in the config solved the issue for me. Interesting that merely upgrading the CPU would have caused issues like this with the Linux drivers. 1 Quote Link to comment
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