![]() The point of those tests (of course) was to show the differences with the various graphics cards. At that time I had only one optical drive and only 2 hard drives installed - now I have 2 optical drives and 4 hard drives inside. See the bottom of the 1st page of my June 2009 GTX-285 review (vs ATI 4870 and GT120) for tests on total system wattage when Idle, during Motion 3 tests, 3D gaming, Benchmarks, etc. I didn't originally test for that here, but I did record some data on that back in early June with my 2009 8-core 2.66GHz Mac Pro. And BTW - you can't compare Temperature Monitor's core or CPU reporting to iStat Menus' CPU Temperature reporting (which as of v2.0 is the CPU HEATSINK temperature) - see first tests with iStat Menus below for more on that.)įYI: Although this page is about CPU/Core temperatures (and turbo/core speeds), someone brought up total system power usage. ![]() Marcel (the author of temperature monitor and hardware monitor) has repeatedly answered questions (and in some cases incorrect assumptions) about how the reported temperatures are derived (following intel and OS X guidelines). It's not anywhere near a real analysis of this topic - just the results of some quick tests I ran and my ramblings/thinking out loud. This page is just a catch-all for previous posts in the last few days + some quick tests I ran this weekend. See below for my Windows tests on that (HWinfo32 v3.30 reports turbo speeds on all cores with typical use.) And to confirm that "turbo mode" was supported in Windows, as someone had questioned that. (I also wanted to check/compare reported temps in bootcamp/Windows after playing songs for appx the same duration. (It isn't the primary work machine but I had used it in 10.5.x, 10.6.x, Vista and Win 7 - OS X use primarily converting video and for tests used in reviews such as the GTX-285 card.) I'd never had a kernel panic, thermal shutdown or any problems to date (even after hours of video encoding in handbrake) but after getting that mail/reading the posts in the apple forum thread decided to install Temperature Monitor in OS X 10.5.8 to check reported core temps with iTunes audio playback. (At least one owner believes that his cores had ran hot enough to cause shutdowns and an eventual failure.) I own an (early shipped) 2009 Mac Pro (dual 2.66GHz) but hadn't installed any thermal monitoring utilities in the past to monitor that. 27th, 2009 news page had a reader post regarding higher than expected CPU core temperatures w/2009 Mac Pros and Audio Apps/iTunes (copy below) where several owners were concerned over reported CPU core temperatures (in the 80's C or more in some cases) just from playing audio (for instance iTunes but reportedly any OS X Core Audio shows this - iTunes is just commonly used to illustrate the problem). However still no updates to fix the core issue also seen in OS X 10.5.x.)īackground: The Nov. Update: On May 3rd, 2010 Apple posted Mac Pro Audio Update 1.1 that is said to fix the Firewire Audio noise issue seen w/v1.0 of the update. ( FYI: On Feb 11th, 2010 apple posted a fix for OS X 10.6.2 users - see 2009 Mac Pro Audio Update 1.0.īTW - A reader said the "Audio Update" also fixed the high wattage/high temps seen during Firewire transfers, but some Firewire audio interface users are reporting the "audio update" has caused a High pitch squeal when using Firewire audio devices. Updated: May 3rd, 2010 - FYI on Audio Update 1.1 (to fix FW audio noise) Updated: Feb 22nd, 2010 - FYI on 'audio update' causing noise w/FW audio devices Updated: Feb 11th, 2010 - FYI on 'fix' for OS X 10.6.2 ![]() Updated: Dec 31st for report on PCIe Audio cards Updated: Dec 29th for Quad 2.93GHz owner's test summary Updated: Dec 5th (short notes/observations using iStat Menus) Updated: Dec 4th (notes on more Vista/HWinfo tests/core speeds during MP render tests) Updated: Dec 3rd (more notes from Author of Temperature Monitor) (Notes on Turbo mode, Temperature monitoring in OS X vs Windows) ![]() Re: 2009 Mac Pro High CPU Core Temperatures w/OS X audio playback (or FW I/O) Mac Upgrades/Repairs | Storage | Video & Displays | Audio/Home Theater | OS Updates/Tips/Wi-Fi Regarding 2009 Mac Pro High Wattage/CPU Core Temperatures with OS X audio playback (w/OS X vs Windows Core Temperatures and Turbo mode speeds)
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