Switching from Marvell to Broadcom SFP+ module resolves 10Gb/s Ethernet overheating issue
By
Giles Thomas
Pulled from the oven just right. Trustworthy, fact-dense, deeply satisfying.
Summary
The author upgraded their home LAN to 10Gb/s using CAT-6 cabling and 10GBASE-T SFP+ modules. One of their Marvell-based SFP+ modules in the study switch was overheating at 93C. They switched to a Broadcom-based SFP+ module, which appears to run cooler and more reliably, though they cannot be completely certain of the improvement yet.
Key quotes
· 3 pulledThe modules in reggie, the router, appeared to be running OK (see the linked post above for charts), but the one in nigel, the study switch, was a worrying 93C.
As predicted by several people, one of my Marvell-based SFP+ modules had overheating problems.
I've switched it over to a Broadcom-based one, and it looks better, though I can't be certain.
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