November 14, 201510 yr Community Expert uh oh panic mode. recently bought a second server. had it up and running well. it was a 2 cpu motherboard with one cpu. i ordered two faster cpus and additional ram. this morning i installed it all. when booting to bios, can see that both cpu's and additional ram are recognized! yay! or so i thought unraid boot menu comes up and screen shows Loading /bzimage...ok Loading /bzroot...ok early console in decompress_kernel Decompressing Linux...Parsing ELF... done Booting the kernel. and it just hangs there... any advice? it seems to be getting to use the flash drive which i assume is good. i have a backup of my flash, should i remove, reformat, and copy backup over to flash?
November 14, 201510 yr Community Expert You might just try putting your flash in your PC and letting it checkdisk. Also possibly something about the way the new mobo BIOS is trying to boot. Check and make sure UEFI is off for the device. Never use a backup of your flash unless you are certain it has the current array configuration on it.
November 14, 201510 yr Author Community Expert ran checkdisk but it said no errors found Can't find a setting for UEFI... is this in the bios? any other advice? also tried booting into unraid safe mode but no luck, same hang can't really tell if this is an unraid prob, or a hardware prob. obviously i suspect hardware since its new, however the machine seems to start to boot unraid.... not sure where to go from here. i made a flash backup immediately prior to changing the hardware....
November 14, 201510 yr Author Community Expert update... flashed the bios because some reading suggested that the mobo may need to be flashed in order to support two cpus i am on a H8DME motherboard, flashed to version 3.5 reset BIOS to defaults, set flash drive to boot drive reboot unraid started booting off flash drive but got to exact same place, Booting the kernel. Still can't find UEFI to disable! any clues on where this typically is? also any thoughts on other steps to take? i suppose i could roll back the hardware but that seems like a shame. also i could remove the second cpu and set of ram, to see if it can boot with one cpu before attempting the second? don't really want to do this because it appears that both cpu's and all the ram is being recognized, i can see it all in the bios
November 14, 201510 yr As a general rule of thumb, if your BIOS screen is all in text, then you won't have to worry about UEFI. If its a graphical display, then it'll probably be somewhere in boot settings. Also replied to your other thread.
November 14, 201510 yr Author Community Expert Yes BIOS is in all text so bit of an update. removed cpu number 2, and ram. booted up into unraid! tempted to leave the system as is now that its booted, but i still really want to install that second cpu that i bought... any thoughts on how to proceed?
November 14, 201510 yr Yes BIOS is in all text so bit of an update. removed cpu number 2, and ram. booted up into unraid! tempted to leave the system as is now that its booted, but i still really want to install that second cpu that i bought... any thoughts on how to proceed? Never ran dual processors, but my thoughts are to reinstall it then try my suggestions (esp memtest) as pointed out on the other thread.
November 14, 201510 yr Author Community Expert ok started memory test... it is throwing up constant errors, like literally every sector tested is reporting an error. its been running one minute and there are literally 100,000 errors and they are still racking up is it even worthwhile continuing? how can i tell which sticks are being tested, and which are bad??
November 14, 201510 yr Community Expert The correct answer for memtest is exactly zero errors, so no point in continuing to pile them up. I usually just try one stick at a time. Problem could be a stick or it could be a slot. If each stick seems OK then try them each in another slot. Only time I had a problem it was a stick which I replaced and been fine since. Since you said you were using BIOS defaults that should be OK. I have heard that some boards can be picky about RAM though. The manufacturer usually has a list of compatible RAM.
November 14, 201510 yr Author Community Expert my ram is on the compatible list so that's good. i do have to say that i was super unimpressed with the way the ram was shipped... 4 sticks in a sandwich bag with no padding! going to have to leave some neg feedback... is there any chance the cpu could be bad? reason i ask is that literally every bit of the ram is bad, there are no 'passed' sectors, only failed. maybe i'm running the test wrong?
November 14, 201510 yr Author Community Expert ok another update. I will embark on the memory test, but first i wanted to confirm that the cpu's were both working For background, i have one cpu working with 8gb ram (4 sticks of 2gb each). I installed the second cpu, and moved two sticks over to the second cpu slots... so basically there is 4gb for cpu 1 and 4gb for cpu 2. and things are booting fine! so now what to do.... i have this 'ebay' ram which is also 4 sticks. the problem is, i'm not sure how to test it my mobo has 8 slots for each cpu... Here's how they are marked, and where my current ram is installed: CPU 1 Dimm 1a 2gb CPU 1 Dimm 1b 2gb CPU 1 Dimm 2a CPU 1 Dimm 2b CPU 1 Dimm 3a CPU 1 Dimm 3b CPU 1 Dimm 4a CPU 1 Dimm 4b CPU 2 Dimm 1a 2gb CPU 2 Dimm 1b 2gb CPU 2 Dimm 2a CPU 2 Dimm 2b CPU 2 Dimm 3a CPU 2 Dimm 3b CPU 2 Dimm 4a CPU 2 Dimm 4b My question: I suppose i should test the other 4 sticks one at a time however where should i slot them? CPU 1 Dimm 2a? is it okay for one cpu to have 6gb and one cpu to only have 4? also the whole a and b thing makes me think there should be two in there... not sure what the impact of only having an 'a' and no 'b'? hope i'm being clear... I guess I'm quite confident at least one of my new ram sticks are bad, and maybe all 4. suppose only 1 is bad, can i use the other 3, or is it bad to be 'unbalanced'?
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