Apple iMac "Core 2 Duo" 3.06 24-Inch (Early09)

[kaye]

You must be up to date or the list sez an update is not necessary. Did you try Software Update? k

[rwm]

Did you try Software Update? k

Yes - nothing, I should be good to go it looks.

[kaye]

I think Apple is classifying your iMac as Early 2008 but that is not on the list anyway. See here iMac (Early 2008 - Tech Specs) yours in the middle column?

I need to download Hardware Monitor and compare the results with iStat nano. k

[rwm]

You are right Kaye. I bought in the spring of 2009 but it was an Apple refurbished. So it is considered early 2008.

[yeungfeng]

Took readings three times yesterday. At Startup:

HD .......................72
CPU A ...................79
CPU A ...................77
GPU Diaode ...........85
GPU Heatsink .........88
Ambient ................67
Memory Controller ..83

Evening (nothing but monitor sleeps) and constant use

HD .......................130
CPU A ...................106
CPU A ...................106
GPU Diaode ...........131
GPU Heatsink .........130
Ambient ................74
Memory Controller ..117

Later in evening with light use

HD .......................128
CPU A ...................104
CPU A ...................101
GPU Diaode ...........130
GPU Heatsink .........128
Ambient ..................72
Memory Controller ..115

Tonight after emails and web only
HD .......................117
CPU A ....................95
CPU A ....................94
GPU Diaode ...........110
GPU Heatsink .........112
Ambient ..................70
Memory Controller ..103


Seems like it might be a little warm. There is space around it, but it's not out in the open. Not sure what to think.

[kaye]

A comparison of Hardware Monitor and iStat nano readings. We turn the house heat off at night in the winter so the temps were pretty cold in the room, 59F. And the iMac is still on the floor.

Yesterday morning I took a screenshot of Hardware Monitor first, then iSat nano about 3.5 minutes later. Pretty close overall. Obviously more info from Hardware Monitor.





Your readings look reasonable to me. k

[rwm]

Well K's ambient air is 58
and yeungfeng's the lower 70's

and mine are in the mid to upper 70's

Thats why things are like they are cool, warm and overly warm.

[unclemac]

Don't forget, different machines. Different chip sets, different venting/fan layout, and could have different sensor layout too. Latest machines have Aluminum backs, which may dissipate heat better as well.

Likely apples to oranges. Don't fret too much.

[rwm]

I am not worried but when my ambient air starts 15 to 20 degrees more it's hard to keep things cool.

[kaye]

Latest version of OpenGL Extensions Viewer is 3.16. It runs slower on my G5 (OSX 10.4.11) than 3.14. Anyway a comparison of v3.16 on my iMac with v3.16 on the G5 which is much slower FPS.
OpenGL Viewer




Note that Quincux multisampling (whatever that is) is only available on the iMac, grayed out on the G5. k

[kaye]

Article here discussing Apple and OpenGL 3.0 support. k

[kaye]

A couple of things, first I used Unc's excellent tip for for turning off the annoying screenshot shadow manually in Terminal and will be testing that several times today because I finally decided to install X-Plane v9 on the iMac (a somewhat but not much smaller version with just the USA about 68GB instead of worldwide about 72GB and updated it to v9.44.

So I will be comparing OSX 10.4.11 old G5 DP with iMac dual core 10.6.2, both 8GB RAM but iMac faster speed, G5 256MB VRAM, iMac 512MB. That VRAM difference could be huge. Will find out. k

[yeungfeng]

Well I finally had my first crash last night. I was logged into iTunes and had Safari opened up. I was having a little trouble reading the page I was on so I changed the screen resolution. Bag the screen turned blue and nothing else happened.

I did a force quit and restarted all well and fine. I rebooted from external HD Backup and ran DU which said:

2010-04-06 09:20:13 -0600: Repairing permissions for “Macintosh HD”
2010-04-06 09:30:40 -0600: Permissions differ on "usr/share/derby", should be drwxr-xr-x , they are lrwxr-xr-x .
2010-04-06 09:30:40 -0600: Repaired "usr/share/derby".
2010-04-06 09:31:31 -0600: Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
2010-04-06 09:33:30 -0600:
2010-04-06 09:33:30 -0600: Permissions repair complete

Wonder if this is a problem?
Why did it crash changing screen resolutions?
What is the meaning of life? Just thought I'd mix it up a bit.