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Apple Computing Products:
macOS - Desktop Hardware
Mac pro fan problems?
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<blockquote data-quote="Johs1983" data-source="post: 1615158" data-attributes="member: 336260"><p>Hi Nick.</p><p></p><p>Thanks for your reply. The fan problem was there already before I did the firmware upgrade to 2.1, so I don't think the firmware is the problem.</p><p></p><p>I did the CPU upgrade and didn't use the computer for a while after that (but I did test it and the fans where on full speed then). After a couple of weeks I did the firmware flash, which didn't change the fan problem.</p><p></p><p>I just discovered one more thing: I downloaded the iStat pro that can measure cpu tempereture and it says CPU A is 126 degrees C and CPU B is only 30 degrees (which I suppose is the normal temperature).</p><p></p><p>So it seems that something is wrong with CPU A... or that it is unable to measure the actual temperature for some reason!?</p><p></p><p>PS. The graphic card is a Radeon HD 4870, and besides that no video or pci cards are installed.</p></blockquote><p></p>
[QUOTE="Johs1983, post: 1615158, member: 336260"] Hi Nick. Thanks for your reply. The fan problem was there already before I did the firmware upgrade to 2.1, so I don't think the firmware is the problem. I did the CPU upgrade and didn't use the computer for a while after that (but I did test it and the fans where on full speed then). After a couple of weeks I did the firmware flash, which didn't change the fan problem. I just discovered one more thing: I downloaded the iStat pro that can measure cpu tempereture and it says CPU A is 126 degrees C and CPU B is only 30 degrees (which I suppose is the normal temperature). So it seems that something is wrong with CPU A... or that it is unable to measure the actual temperature for some reason!? PS. The graphic card is a Radeon HD 4870, and besides that no video or pci cards are installed. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Mac pro fan problems?
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