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I am just tired - the PSU swap did not work - it was the power cord that had fallen out. Lesson: Always check the LED on the back - if the supply is faulty it will not be steady green, it will flash a color enabling diagnosis.

Any recommendations for new fans for a ICX 6610 PSU? I have a failed fan in one I want to replace, but it seems to be a special delta fan, or at least the info on the label does not match those I see on Delta's site/eBay. I can find a bunch of recommendations to not downgrade the fans...

Looking at the product brief for the Connectx-5 AISC they have two different part numbers based on PCIe 3 or 4 support. Could still be marketing, I guess. https://www.mellanox.com/sites/default/files/doc-2020/pb-connectx-5-vpi-ic.pdf

Good afternoon, I have got two damaged Connectx-5 ECAT's which I have repaired and seem to work. However I only have a x8 lane PCIe 4.0 socket on my X570 motherboard. To run them fast I would need PCIe 4.0 support. Has anyone tried cross-flashing them to see if that just works TM? Or are there...

@fohdeesha Do you know how to configure flow control on the "unstacked" 40gbe ports? I am using two Connextx-3 (non-Pros) doing ROCEv1 (and 1.25!?! wth Mellanox) to do NVMe-oF between linux and Windows 10 Pro over RDMA. I see from the Fastiron flow control guide you can enable symmetric flow...

Yeah @Markess, I checked the PCB revision on the silk screen and mentioned it in the first post its 1.10. BIOS is 3.3. Apparently you could have sent the board in for an ECO under warranty but obviously that hasn't been applied (or it would boot). I'll skip the upgrade to X10, ddr4, that is...

Thank you both so much @Markess & @Spartacus. I took the idea you suggested and for $10 on ebay scored two E5-2709v2's and the result of the test is what I reported - failed to boot. With no published ECO changes that could be applied, despite me having a pretty good SMT rework capability I...

Sigh, just tested with throwaway V2's and definitely I have an old board revision. Oh well.

So, as I ended up in a hurry I bridged it, checked for no shorts on the power supply and shoved it in a burner PC to test. Worked fine and currently undergoing stress testing. I agree on the idea though, that is a really good way of thinking of it. I will get some on order and then resolder the...

So, purchased 6x of the AOC Supermicro cards with SAS2308 SoC's from LSI from ebay $25each: SuperMicro AOC-S2308L-L8i 8 Ports SAS-600 PCIe 6Gb/s Server Controller Card | eBay When flashing them to the latest BIOS 20.00.07, I got tired and tried to hotswap one. Got the flash and pop - card...

"Angry upvote" captures my mood. Really got my heartrate up. Well played again.

Thank you very much! IN is going into a statewide lockdown beginning Wednesday so I suspect those $5 v2 I ordered for testing will not arrive as planned either. Weird times these.

Thanks! Both for $75, vs. $150?

Just for kicks I bought two E5-2609v2 for $10.70 shipped so I can be 100% disappointed

oh no, however there are so many slightly different versions out there of the X9DRxxx: SUPERMICRO MOTHERBOARD X9DRi-LN4F+ Rev 1.10

Good morning all, Just recently upgraded from Dual Opteron 6380's to a Supermicro X9DRi-LN4F+ rev 1.10 [thanks j_h_o] with DDR3 and two sockets for $100. I run a few containers, but mostly ZFS filer in the Supermicro 846 case with 40GBE ethernet serving iSCSI. DDR3 I spent $20 on getting...

I ended up with cloned Cisco single mode lr fibers

@fohdeesha - tried lifting a heatsink, and got no-where. Even though they have pins, the heatsinks are glued down with probably the same glue as the smaller ones used throughout the design. I have not tried freezing them off, not sure whether to go that far with a working switch.

Basic networking irq affinity set and tcp tuning. 1.75GBs write and 2.65GBs read! Biggest improvement was banning numa node 0 of interrupts, and then pinning the mlx4 irqs to node 0. Leave irqbalance running for the rest of the system.

Racked my icx6610, disabled dual mode and moved to vlans only. Benchmarked by ZFS array from my Windows 10 desktop via 40gbps ethernet. This is cache testing only, btw, not spinning disk performance. None too shabby. Next phases are kernel buffer tuning, IRQ binding and windows 10 buffer tuning...