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Mac Pro Fans at Failsafe Speeds on Cold Start after SSD Upgrade:
A recent post in Apple's Mac Pro forum asked for help regarding High fan speeds in Mac Pro 4,1 after an SSD upgrade.

"Just recently I did a fresh installation of Mavericks 10.9.2 onto a new Samsung 840 EVO 250GB SSD (connected via an ICY Dock Enclosure) and placed it into my Mac Pro 4,1 (2009) 8 core as my main system drive and have since been experiencing strange Fan behaviour.

When I boot my Mac up everyday for the first time the Fans run at full speed, but if I reboot the problem goes away?
(Were any errors logged at startup? (console/log errors, anything not initializing at startup, etc.) After a reboot does fan rpm always stay low? (If not, does Temperature Monitor ever show any high sensor readings?)
If you don't reboot after a cold start, do the fans stay at max rpm? (failsafe mode perhaps?) How long have you waited to see if they eventually reduce in speed? Just curious.
)

I have tried resetting the SMC and PRAM but it still happens.
(Do you have another boot volume? If so, is it always OK booting from another Disk? (or a boot in safe mode).)

I have also recently added a UAD-2 Quad PCIe card as well as replacing the stock graphics cards (GT120's) with an ATI Radeon 5770 which was a while ago.
(Were the UAD-2 PCIe DSP Accelerator Cards installed (and OK) before the SSD upgrade? (i.e. was the only change before fan problem appeared just the SSD.) If not, does removing the UAD cards change this behavior? (TS by simplifying the equation so to speak.))

This is the first time I have experienced odd Fan behavior since purchasing the Mac 5 years ago."

I don't post there so the above are just some ideas off the top of my head. (Maybe someone sharper than myself can reply with other/better suggestions.)
  

Apple/Mac/iOS News/Updates/Tips/PR:
  
Updated Apple Support/How-To/Troubleshooting Articles:


  
Other News/Reviews/Tech/Tips/OT:

  
Recent Articles/Tips/Tweaks/Reviews:
Listing/links of updates, DIY mod/upgrade articles, tips and reviews you may have missed. (Mac compatible 802.11ac wifi cards/adapters, Radeon 7970 in 2007 Mac Pro, Mac mini/MBP/iMac internal Mini-PCIe eSATA Card Mods, OS X Updates/Tips/Problems, Low-Cost CPU Upgrades for early Mac Pros/Xserves and Minis, Mac Mini SSD upgrades, OS X SSD Trim Enablers, DIY Fusion drives and more.)
  

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Previous News Archive Summary:
    Monday May 12th, 2014 News
  • Info/Tips for using Multiple Displays with Late 2013 Mac Pro
  • Review of 2014 MacBook Air 13-Inch
  • Optical vs Copper Thunderbolt Cables
  • Mac Pro crashes using OsiriX/3d program fixed by Nvidia CUDA update.
  • Apple aims to cut online sales refund times in half
  • Steve and Jimmy: The Roots of Apple's Bid for Beats
  • Apple and the Cloud: A missed opportunity
  • Will Apple return to peripherals business?
  • Little Snitch 3.3.1 release notes
  • XBMC 13.1 beta1 Gotham
  • Seagate Backup Plus 5TB External (USB 3.0) Hard Drive Review
  • Intel Haswell Refresh Review: Core i7-4790, i5-4690 and i3-4360 Tested
  • The Indie Box Project - a personal server for indie web apps
  • Tails 1.0: A bootable Linux distro that protects your privacy
  • Half-Life 2 and Portal Now Available on Nvidia SHIELD
  • Shoot HD Video with Oculus Rift-Controlled Drone
  • Android 4.4.3 changelog points to new devices

For links to older news pages, see the Archives.
  


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