I was able to get AHT to run. It did not detect any issues.
EtreCheck:
My understandning is ucupdate and watchdogd only fail in SafeMode, right?
EtreCheck version: 2.9.12 (265)
Report generated 2016-06-20 10:01:39
Download EtreCheck from https://etrecheck.com
Runtime 2:15
Performance: Excellent
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Click the [Details] links for more information about that line.
Problem: Other problem
Description:
Graphics issue
Hardware Information: ⓘ
iMac (24-inch, Early 2009)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac9,1
1 3.06 GHz Intel Core 2 Duo CPU: 2-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
4 GB DDR3 1067 MHz ok
BANK 1/DIMM0
4 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ⓘ
ATI Radeon HD 4850 - VRAM: 512 MB
iMac 1920 x 1200
System Software: ⓘ
OS X Yosemite 10.10.5 (14F1808) - Time since boot: less than an hour
Disk Information: ⓘ
ST31000342ASQ disk0 : (1 TB) (Rotational)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 149.69 GB (137.07 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD2 (disk0s4) /Volumes/Macintosh HD2 : 350.00 GB (349.56 GB free)
Macintosh HD3 (disk0s5) /Volumes/Macintosh HD3 : 499.39 GB (498.94 GB free)
HL-DT-ST DVDRW GA11N disk2 : (4.94 GB) ()
disk2s1 (disk2s1) <not mounted> : 31 KB
disk2s2 (disk2s2) <not mounted> : 2 KB
Applications Install Disc (disk2s3) /Volumes/Applications Install Disc : 4.94 GB (84 MB free)
USB Information: ⓘ
Apple Inc. Built-in iSight
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
SanDisk Cruzer Glide 32.02 GB
EFI (disk1s1) <not mounted> : 210 MB
Mac 32GB (disk1s2) /Volumes/Mac 32GB : 31.67 GB (2.00 GB free)
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Gatekeeper: ⓘ
Anywhere
System Launch Agents: ⓘ
[not loaded] 4 Apple tasks
[loaded] 162 Apple tasks
[running] 47 Apple tasks
System Launch Daemons: ⓘ
[failed] com.apple.ucupdate.plist
[failed] com.apple.watchdogd.plist
[not loaded] 46 Apple tasks
[loaded] 141 Apple tasks
[running] 73 Apple tasks
User Login Items: ⓘ
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Other Apps: ⓘ
[running] com.eidac.smcFanControl2.5144
[loaded] 375 Apple tasks
[running] 130 Apple tasks
Internet Plug-ins: ⓘ
Default Browser: 600 - SDK 10.10 (2016-05-23)
QuickTime Plugin: 7.7.3 (2016-05-23)
3rd Party Preference Panes: ⓘ
None
Time Machine: ⓘ
Time Machine not configured!
Top Processes by CPU: ⓘ
2% fontd
1% kernel_task
1% WindowServer
0% hidd
0% SpotlightNetHelper
Top Processes by Memory: ⓘ
414 MB kernel_task
106 MB iconservicesagent(2)
98 MB CVMCompiler(3)
90 MB UserEventAgent(2)
82 MB Finder
Virtual Memory Information: ⓘ
4.62 GB Free RAM
3.38 GB Used RAM (1.15 GB Cached)
0 B Swap Used
Diagnostics Information: ⓘ
Jun 20, 2016, 09:55:34 AM Self test - passed
Jun 20, 2016, 08:52:53 AM ~/Library/Logs/DiagnosticReports/fontd_2016-06-20-085253_[redacted].crash
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Support/fontd
Jun 18, 2016, 10:19:23 AM ~/Library/Logs/DiagnosticReports/fontd_2016-06-18-101923_[redacted].crash
Jun 18, 2016, 09:01:41 AM ~/Library/Logs/DiagnosticReports/fontd_2016-06-18-090141_[redacted].crash