bally12345 Posted January 6, 2020 Share Posted January 6, 2020 Hi I was trying to upgrade my dual xeon setup with a pair of X5690s but for someone reason it does not post when both cpus are in. If I take one out it posts fine, but both together and nothing. Motherboard has most up to date bios available. If I put the original 2 cpus in it posts fine. I tested the X5690s individually thinking one might have been dead but this is not the case. What else should I look for? I have reseated memory modules. Swapped CPUs around into opposite socket but same result. Spec in Sig Quote Link to comment
uldise Posted January 6, 2020 Share Posted January 6, 2020 just for check - do you have all three power cords connected to mobo? Quote Link to comment
bally12345 Posted January 6, 2020 Author Share Posted January 6, 2020 Yep all power connected, I have removed one CPU for now and everything running but as soon as I add the 2nd one it will fail to post. Then it doesn't matter what which one I remove. If I put both E5645s back in it works. Also cleared CMOS just incase it was some BIOS issue Model: N/A M/B: Supermicro X8DT3 Version 2.0 - s/n: NM13AS004395 BIOS: American Megatrends Inc. Version 2.2. Dated: 07/09/2018 CPU: Intel® Xeon® CPU X5690 @ 3.47GHz HVM: Enabled IOMMU: Disabled Cache: 384 KiB, 1536 KiB, 12288 KiB, 0 KiB, 0 KiB, 0 KiB Memory: 24 GiB DDR3 Multi-bit ECC (max. installable capacity 384 GiB) Network: eth0: 1000 Mbps, full duplex, mtu 1500 eth1: interface down Kernel: Linux 4.19.88-Unraid x86_64 OpenSSL: 1.1.1d Uptime: 0 days, 00:27:05 Quote Link to comment
bally12345 Posted January 6, 2020 Author Share Posted January 6, 2020 Found almost identical issue here https://superuser.com/questions/1072866/why-wont-my-motherboard-work-with-two-cpusBut I don't think it can be a bent pin because it doesn't matter what socket I use or what cpu.Sent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 7, 2020 Share Posted January 7, 2020 how you populate RAM in slots? have your tried with both CPU and just one RAM stick for each? and without any attached devices.. Quote Link to comment
bally12345 Posted January 7, 2020 Author Share Posted January 7, 2020 how you populate RAM in slots? have your tried with both CPU and just one RAM stick for each? and without any attached devices.. All dimms are in I will try take them out but the fact the 2 old cpus work baffles meFor now in just running one Sent from my SM-G973F using Tapatalk Quote Link to comment
bally12345 Posted January 7, 2020 Author Share Posted January 7, 2020 I just noticed only half my memory showing with one cpu. But with one cpu it doesn't matter what socket use will have to pull some sticks out.This was meant to be my last 2019 upgrade! Sent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 7, 2020 Share Posted January 7, 2020 Yes, you can use RAM with CPU only.. so, each CPU sees it's own RAM. Quote Link to comment
uldise Posted January 7, 2020 Share Posted January 7, 2020 and i think, you should write a question to Supermicro support. in my experience they are very responsive and answer question about old tech too.. 1 Quote Link to comment
bally12345 Posted January 7, 2020 Author Share Posted January 7, 2020 and i think, you should write a question to Supermicro support. in my experience they are very responsive and answer question about old tech too.. Iv reached out to Supermicro and submitted a ticket. I can't test anything until the weekend now but im hoping a simple bios fix will the fix rather than having to replace motherboard.I might put the original cpus you back and just make sure 100% I'm not going mad. Sent from my SM-G973F using Tapatalk Quote Link to comment
bally12345 Posted January 8, 2020 Author Share Posted January 8, 2020 Got a response from Supermicro who have said there's very little they can do as it's an OEM board. But if if each socket works independently it could be a power issue.I have Supermicro 1200w redundant PSU.Plan of action remove all but 2 sticks of ram. If still having issue then either sell the x5690 on bay and keep old cpus or buy a different supermicro LGA1366 motherboard (any recommendations?)Sent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 8, 2020 Share Posted January 8, 2020 3 hours ago, bally12345 said: I have Supermicro 1200w redundant PSU. Have you some other PSU available, just for a test? simple standard ATX power supply wont work until it have second CPU cable or you have an adapter to switch from GPU cable. Quote Link to comment
bally12345 Posted January 8, 2020 Author Share Posted January 8, 2020 I have pair of Supermicro 800w server PSU which I can swap the 1200w. I will give that a try today but no other spare PSU that I can use. Quote Link to comment
uldise Posted January 8, 2020 Share Posted January 8, 2020 for just a test use a single one. 800W is plenty.. Quote Link to comment
bally12345 Posted January 10, 2020 Author Share Posted January 10, 2020 for just a test use a single one. 800W is plenty..Changed the PSU, changed ram slots. Got fed up and decided I would go back to the original Xeon E5645 and same issue! It won't post with both!As it's refurbished server from ebay I don't know if Supermicro will be able to help but now its not a case of faulty cpusIt's something preventing it from posting with processors Sent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 10, 2020 Share Posted January 10, 2020 2 hours ago, bally12345 said: Changed the PSU, changed ram slots. Got fed up and decided I would go back to the original Xeon E5645 and same issue! It won't post with both! did you tried both cpu's with only one RAM stick with each CPU? and remove all other connected equipment, like PCIe cards, HDDs, .. something weird is going on.. Quote Link to comment
bally12345 Posted January 10, 2020 Author Share Posted January 10, 2020 did you tried both cpu's with only one RAM stick with each CPU? and remove all other connected equipment, like PCIe cards, HDDs, .. something weird is going on..Yep I think the board must be at fault I'm waiting for a reply from Supermicro but not looking good.As they suggested to reinstall the bios. Sent from my SM-G973F using Tapatalk Quote Link to comment
bally12345 Posted January 10, 2020 Author Share Posted January 10, 2020 Yep I think the board must be at fault I'm waiting for a reply from Supermicro but not looking good. As they suggested to reinstall the bios. Sent from my SM-G973F using Tapatalk Omg just posted with the 2 E5645 Put I I put 3 stick of ram in blue slots. Going to swap to X5690 try get post then add extra ram! Sent from my SM-G973F using Tapatalk Quote Link to comment
bally12345 Posted January 10, 2020 Author Share Posted January 10, 2020 Omg just posted with the 2 E5645 Put I I put 3 stick of ram in blue slots. Going to swap to X5690 try get post then add extra ram! Sent from my SM-G973F using Tapatalk Just my luck it didn't work, so now Iv put the 2 E5645 back in and it's working!Only thing I can think of is the X5690 aren't a matching pairSent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 10, 2020 Share Posted January 10, 2020 12 minutes ago, bally12345 said: Only thing I can think of is the X5690 aren't a matching pair if model are the same, it should work.. according to your pic from BIOS - why only 20GB of RAM? one stick missing? Quote Link to comment
bally12345 Posted January 10, 2020 Author Share Posted January 10, 2020 if model are the same, it should work.. according to your pic from BIOS - why only 20GB of RAM? one stick missing?Good spot looks like 2 sticks not showing. I will try later.Unraid now showing 40Gb RAMSent from my SM-G973F using Tapatalk Quote Link to comment
uldise Posted January 10, 2020 Share Posted January 10, 2020 12 minutes ago, bally12345 said: Good spot looks like 2 sticks not showing. I will try later. Unraid now showing 40Gb RAM try re seating all sticks, if that not work, then try identify faulty ones and simply not use them. i would go for larger sticks, 8Gb stick costs about 15EUR, 16GB stick about 25EUR on ebay. see your Mobo manual, i often see that with all RAM Stick populated they work for slower speed. you can go for 4x16GB sticks - 2 per cpu. Quote Link to comment
ChewbaccaBG Posted January 10, 2020 Share Posted January 10, 2020 (edited) Try changing the QPI link to 6,400 MT/s after swapping the CPUs (1 on 1 off so you can POST), then add the 2nd CPU. http://valid.x86.fr/x546z7 -- should work. Check the bios versions & etc from there. Edited January 10, 2020 by ChewbaccaBG Quote Link to comment
bally12345 Posted January 13, 2020 Author Share Posted January 13, 2020 Try changing the QPI link to 6,400 MT/s after swapping the CPUs (1 on 1 off so you can POST), then add the 2nd CPU. http://valid.x86.fr/x546z7 -- should work. Check the bios versions & etc from there.Tried this, still didn't work tried the other options too. Super annoying. Sent from my SM-G973F using Tapatalk Quote Link to comment
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