Hello everyone!
So i've built around 5-6 of these same exact setups with the exact same parts and all of a sudden after shipping them out, a few of them are having issues. Its important to note that some were just fine that were shipped in the same box.
So here is the issue, we are using the Supermicro H11SSL-I-O with AMD EPYC 7551 and 2-8 sticks of memory, M2 SS2, and a 650W-750W power supply. The system worked fine, powered on, and everything was installed/setup prior to shipping out.
After landing, when they plug it into the power supply, all they're getting is the heartbeat LED light (blinking). There is no system power LED going on. There is no spinning on the CPU fan at all.
We already tried reseating the CPU a few times, but the problem is, they don't have the exact spec'd torque tool (the one thats supposed to be torque'd at 16.1 kgf-cm (14.0 lbf-in) - only a normal torque screwdriver w/T20 bit. Obviously this isn't ideal, but is this possibly the reason why reseating the CPU isn't helping?
Secondly - in the same shipment, there is a working machine there, so I am trying to figure out how we can utilize the machine that we know works, to narrow down the problem on the 2 that do not work. (Total of 3 in that shipment - 2 out of 3 are giving the same heartbeat blinking LED and one is working just fine).
I was praying that reseating the CPU would work, but since they don't have the tool, I am wondering if its the reason why it wont power on. Possibly the CPU got moved during shipment just a tad? I'm just wondering if its an absolute 100% requirement to torque it to those exact specs to get it work. Problem is, that tool (some kind of 1/4 adjustable measurement torque wrench w/the T20 bit) isn't readily available at the moment and would take a week+ to get to them during the current conditions and due to product availability.
Things I know:
- There's no damage to the motherboard pins.
- Tried swapping power supplies to rule that out.
- Motherboard is installed on a case, so it should be grounded properly?
- Heartbeat LED is blinking at normal pace.
Possible Problems:
- CPU needs reseated with the proper torque? Is it really that sensistive?
- CPU is dead
- Motherboard is dead
- My life sucks right now.
As a note, we do have one of the same exact setups working from that same shipment... so I was thinking about MAYBE trying to reseat that one and see if it stops working, if it stopped working, then maybe it points to the torque'ing issue/tightening issue since we know the machine works as is right now. That would be best case scenario... but if we do that and it works, then that leads me to believe maybe the CPU is dead on both? So then I would take the working CPU out of the working machine and try the 2 CPUs from the dead machine. If that works... then we have a motherboard issue potentially?
I wish this was as simple as just reseating it without needing a specific torque to atleast help identify the issue but im up FOR ALL SUGGESTIONS as im PULLING MY HAIR OUT AS WE SPEAK!
Sourcing a tool is something we are trying to do, but im looking at other options and ideas... reseating CPU has worked in the past on the same parts when I had the issue locally, but I also have the torque tool to get it torque'd just right.
Any help is appreciated.
So i've built around 5-6 of these same exact setups with the exact same parts and all of a sudden after shipping them out, a few of them are having issues. Its important to note that some were just fine that were shipped in the same box.
So here is the issue, we are using the Supermicro H11SSL-I-O with AMD EPYC 7551 and 2-8 sticks of memory, M2 SS2, and a 650W-750W power supply. The system worked fine, powered on, and everything was installed/setup prior to shipping out.
After landing, when they plug it into the power supply, all they're getting is the heartbeat LED light (blinking). There is no system power LED going on. There is no spinning on the CPU fan at all.
We already tried reseating the CPU a few times, but the problem is, they don't have the exact spec'd torque tool (the one thats supposed to be torque'd at 16.1 kgf-cm (14.0 lbf-in) - only a normal torque screwdriver w/T20 bit. Obviously this isn't ideal, but is this possibly the reason why reseating the CPU isn't helping?
Secondly - in the same shipment, there is a working machine there, so I am trying to figure out how we can utilize the machine that we know works, to narrow down the problem on the 2 that do not work. (Total of 3 in that shipment - 2 out of 3 are giving the same heartbeat blinking LED and one is working just fine).
I was praying that reseating the CPU would work, but since they don't have the tool, I am wondering if its the reason why it wont power on. Possibly the CPU got moved during shipment just a tad? I'm just wondering if its an absolute 100% requirement to torque it to those exact specs to get it work. Problem is, that tool (some kind of 1/4 adjustable measurement torque wrench w/the T20 bit) isn't readily available at the moment and would take a week+ to get to them during the current conditions and due to product availability.
Things I know:
- There's no damage to the motherboard pins.
- Tried swapping power supplies to rule that out.
- Motherboard is installed on a case, so it should be grounded properly?
- Heartbeat LED is blinking at normal pace.
Possible Problems:
- CPU needs reseated with the proper torque? Is it really that sensistive?
- CPU is dead
- Motherboard is dead
- My life sucks right now.
As a note, we do have one of the same exact setups working from that same shipment... so I was thinking about MAYBE trying to reseat that one and see if it stops working, if it stopped working, then maybe it points to the torque'ing issue/tightening issue since we know the machine works as is right now. That would be best case scenario... but if we do that and it works, then that leads me to believe maybe the CPU is dead on both? So then I would take the working CPU out of the working machine and try the 2 CPUs from the dead machine. If that works... then we have a motherboard issue potentially?
I wish this was as simple as just reseating it without needing a specific torque to atleast help identify the issue but im up FOR ALL SUGGESTIONS as im PULLING MY HAIR OUT AS WE SPEAK!
Sourcing a tool is something we are trying to do, but im looking at other options and ideas... reseating CPU has worked in the past on the same parts when I had the issue locally, but I also have the torque tool to get it torque'd just right.
Any help is appreciated.
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