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New thermal camera vs my old temp probe. One of them lied to me all week.
I checked a server rack last Tuesday, probe said 71F. Thermal cam showed a hotspot at 118F near the PSU. My probe was 15 feet away on the cold side. Are we relying too much on single-point readings when one scanned image shows the real problem faster?
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ivan_hayes291mo ago
How far was your probe from the actual intake vents when you took that reading? The gap you described makes me wonder if the probe was ever in a spot that could catch the real heat, or if it just happened to sit in the one cool pocket of the room. Single point sensors only tell you what is happening right at the tip, so placement matters more than most people admit. A 47 degree difference is not a small miss either, that is the kind of gap that turns into a dead drive or a shutdown at 2am. Do you think the probe placement was wrong from the start, or did something change in the rack that made the old spot go cold? Either way it sounds like you already know which tool you trust now.
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