IMac won't wake after Snow Leopard install

I installed 10.6 on my MacBook and iMac. No problems with the MacBook. But every once in a while after putting my iMac asleep it won't wake up. I push the power button, click and type. Nothing. Sometimes if I wait 10 min it turns on by itself, but usually I have to hold the power button down and reset the computer. Any ideas? Is it something on my end or an Apple bug?

Same problem here. Ever since I installed SL, I randomly get this problem requireing restart. Here is crash log for anyone that understands this goobledeegook:
Interval Since Last Panic Report: 811744 sec
Panics Since Last Report: 1
Anonymous UUID: E61B456B-8CBD-4A83-8A8F-9CB7ACB37245
Thu Oct 22 06:51:41 2009
panic(cpu 0 caller 0x226297): "thread_invoke: preemption_level -1, possible cause: unlocking an unlocked mutex or spinlock"@/SourceCache/xnu/xnu-1456.1.25/osfmk/kern/sched_prim.c:1471
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x8a663c08 : 0x21acfa (0x5ce650 0x8a663c3c 0x223156 0x0)
0x8a663c58 : 0x226297 (0x5864e8 0xffffffff 0x586480 0x225e89)
0x8a663cd8 : 0x22699d (0x1b90a7c4 0x27a317ea 0xff37d30a 0x86)
0x8a663d48 : 0x226a2b (0x486ec5 0x0 0x0 0x29f596)
0x8a663d68 : 0x486ccd (0x486ec5 0x148ab4c8 0x8a663d88 0x29f596)
0x8a663dd8 : 0x493d40 (0x0 0x0 0x493fd4 0x0)
0x8a663ed8 : 0x49459d (0x0 0x1 0x160206b0 0x0)
0x8a663f78 : 0x4ed85f (0x1699a7e0 0x1496ba28 0x16020684 0x1)
0x8a663fc8 : 0x29d3fd (0x1496ba24 0x0 0x10 0x1496ba24)
BSD process name corresponding to current thread: CIJScannerRegist
Mac OS version:
10B504
Kernel version:
Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386
System model name: MacPro1,1 (Mac-F4208DC8)
System uptime in nanoseconds: 26766835123168
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0x1076000, size 0x12288) - last unloaded 151268449160
loaded kexts:
com.cisco.nke.ipsec 2.0.1
com.parallels.kext.prl_vnic 4.0 3810.237520
com.parallels.kext.prl_netbridge 4.0 3810.237520
com.parallels.kext.prl_hypervisor 4.0 3810.237520
com.parallels.kext.prlhidhook 4.0 3810.237520
com.parallels.kext.prlusbconnect 4.0 3810.237520
com.Logitech.Control Center.HID Driver 3.1.0
com.apple.filesystems.smbfs 1.6.0 - last loaded 306853089285
com.apple.filesystems.msdosfs 1.6
com.apple.driver.AppleHWSensor 1.9.2d0
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHDA 1.7.4a1
com.apple.driver.AppleUpstreamUserClient 3.0.5
com.apple.DontSteal_Mac_OSX 7.0.0
com.apple.driver.AudioIPCDriver 1.1.0
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.driver.AppleLPC 1.4.6
com.apple.driver.AppleUSBDisplays 2.1
com.apple.GeForce 6.0.2
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPISMCPlatformPlugin 3.4.0a20
com.apple.iokit.SCSITaskUserClient 2.5.1
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.5.0
com.apple.driver.AppleFWOHCI 4.3.4
com.apple.driver.AirPortBrcm43xx 410.91.20
com.apple.driver.AppleUSBHub 3.7.8
com.apple.driver.AppleAHCIPort 2.0.0
com.apple.driver.AppleIntel8254XEthernet 2.1.1b7
com.apple.driver.AppleIntelPIIXATA 2.5.0
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.driver.AppleUSBUHCI 3.7.5
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 90.0.0
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.0.11
com.apple.driver.AppleIntelCPUPowerManagement 90.0.0
com.apple.driver.AppleHIDMouse 1.3.0f1
com.apple.driver.IOBluetoothHIDDriver 2.2.1f7
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.DspFuncLib 1.7.4a1
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IOSurface 73.0
com.apple.iokit.IOBluetoothSerialManager 2.2.1f7
com.apple.iokit.IOSerialFamily 10.0.2
com.apple.iokit.IOAudioFamily 1.7.0fc16
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.7.4a1
com.apple.iokit.IOHDAFamily 1.7.4a1
com.apple.nvidia.nv40hal 6.0.2
com.apple.NVDAResman 6.0.2
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.iokit.AppleProfileFamily 40
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 3.4.0a20
com.apple.driver.CSRUSBBluetoothHCIController 2.2.1f7
com.apple.driver.AppleUSBMergeNub 3.7.5
com.apple.driver.AppleUSBBluetoothHCIController 2.2.1f7
com.apple.iokit.IOBluetoothFamily 2.2.1f7
com.apple.iokit.IOSCSIBlockCommandsDevice 2.5.1
com.apple.iokit.IOUSBMassStorageClass 2.5.0
com.apple.iokit.IOUSBHIDDriver 3.7.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.5.1
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOATAPIProtocolTransport 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.5.1
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.iokit.IO80211Family 300.20
com.apple.iokit.IOUSBUserClient 3.7.5
com.apple.iokit.IOAHCIFamily 2.0.0
com.apple.iokit.IONetworkingFamily 1.8
com.apple.iokit.IOATAFamily 2.5.0
com.apple.iokit.IOUSBFamily 3.7.8
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOHIDFamily 1.6.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacPro1,1, BootROM MP11.005C.B08, 4 processors, Dual-Core Intel Xeon, 2.66 GHz, 14 GB, SMC 1.7f10
Graphics: NVIDIA GeForce 7300 GT, NVIDIA GeForce 7300 GT, PCIe, 256 MB
Graphics: NVIDIA GeForce 7300 GT, NVIDIA GeForce 7300 GT, PCIe, 256 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.91.19)
Bluetooth: Version 2.2.1f7, 2 service, 1 devices, 1 incoming serial ports
Network Service: Parallels Host-Only Networking Adapter, Ethernet, en6
Network Service: Built-in Ethernet 2, Ethernet, en1
Network Service: AirPort, AirPort, en2
Network Service: Parallels Shared Networking Adapter, Ethernet, en5
PCI Card: NVIDIA GeForce 7300 GT, Display, Slot-4
PCI Card: NVIDIA GeForce 7300 GT, Display, Slot-1
Serial ATA Device: ST3250824AS P, 232.89 GB
Serial ATA Device: Maxtor 6Y250M0, 233.76 GB
Serial ATA Device: ST31500341AS, 1.36 TB
Parallel ATA Device: PIONEER DVD-RW DVR-111D
USB Device: Hub, 0x05ac (Apple Inc.), 0x9131, 0xfd400000
USB Device: HP Color LaserJet 2605dn, 0x03f0 (Hewlett Packard), 0x2f17, 0xfd410000
USB Device: ScanSnap S300M, 0x04c5 (Fujitsu Ltd.), 0x117f, 0xfd430000
USB Device: Apple Cinema HD Display, 0x05ac (Apple Inc.), 0x9223, 0xfd420000
USB Device: Hub, 0x05ac (Apple Inc.), 0x911b, 0xfd300000
USB Device: Hub, 0x0409 (NEC Corporation), 0x0059, 0xfd310000
USB Device: Gizmo!, 0x05dc (Lexar Media, Inc.), 0xa720, 0xfd311000
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc526, 0xfd312000
USB Device: Macally DotMouse, 0x2222, 0x3075, 0xfd313000
USB Device: Apple Cinema Display, 0x05ac (Apple Inc.), 0x921b, 0xfd320000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8206, 0x5d200000
FireWire Device: built-in_hub, Up to 800 Mb/sec

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MacBook Pro Won't Sleep after Snow Leopard Install

Neither closing the computer, or selecting Sleep from the menu will allow my computer to enter slumber. Shorty after closing its eyes, my computer will make that unsettling grinding noise and wake up.
I've reset the PRAM, the PMU, turned off bluetooth, airport, all running applications. This only started happening after installing 10.6.
I found a thread on MacRumors discussing this problem, but there was no fix yet. So I bring it here. Can anybody guess what's up, or should I just take it in to the Apple store?

Don't bother taking it to the Apple Store. They won't be able to help. This is a bug in Snow Leopard. I don't know of any workaround or any way to make it stop. It doesn't happen all the time. Usually shutting down the machine will fix it. Sometimes, it will fix itself after a while.
It is important that you never assume a machine is going to go to sleep successfully. Always wait for the pulsating light. If it does go to sleep, chances are it will stay that way. I used iLid Preference Pane to make sure that my machine doesn't accidentally wake up while it is in a bag or something.
I've already filed a couple of bug reports about it. You can help you sending your feedback to Apple.

HP Photosmart C6300 printer/scanner not working after Snow Leopard install

HP Photosmart C6300 printer/scanner not working after Snow Leopard install
Reinstalling etc does not work - does anyone else have the same problem or a clue as to how to fix this?

Keith,
I got a C6280 and the scanner does not work anymore. I am for 6 days in contact with HP. The last printer driver install form the apple web site does not open the image of HewlettPackardPrinterDrivers.dmg because of an invalid checksum. The skipping of the validation gives and error in the install.

IMac won't boot unless snow leopard disc is in the drive

I am running 10.6.4 and have a boot camp partition running windows 7. The windows side is working fine, however snow leopard will not boot unless I put the disc in the drive. I don't need to do anything else at all, just put the disc in. If I do not put the disc in, I get the apple logo appear, a time bar appears at the bottom of the screen which fills up a small amount and then disappears and then I get the grey spinning circle and the apple logo for ever more!
Can anyone please offer me some advice?

Something you could try would be booting to the Snow Leopard install disk. Once at the welcome screen, choose your language and click next. At the top of the screen you will notice the menu bar appear, choose Utilities > Disk Utility. In Disk Utility choose your Mac partition, from there go to the First Aid tab and Verify the Disk and also your Disk Permissions. If any errors show up click Repair on the respective option. After that try booting to OS X again, without the Snow Leopard disk inserted.

TS3479 quick time not working after snow leopard install?

Made video's on my iphone and loaded them to my imac. Video did not work in iphoto. No Quick time pop up. what happened? Snow leopard install.

You need to re-install iPhoto because it's missing bits of itself:
Library not loaded...
Reason: no suitable image found.
Looking at the missing files it's possible that it's missing from the OS. But start with re-installing iPhoto, and if that fails you'll ned to re-install the OS.
To re-install iPhoto
1. Put the iPhoto.app in the trash (Drag it from your Applications Folder to the trash)
2. Go to HD/Library/Receipts and remove any pkg file there with iPhoto in the name
3. Re-install.
If you purchased an iLife Disk, then iPhoto is on it.
If iPhoto was installed on your Mac when you go it then it’s on the System Restore disks that came with your Mac. Insert the first one and opt to ‘Install Bundled Applications Only...’
Regards
TD

Text messages in Safari are garbled on Mac Pro after Snow Leopard install

When reading or composing my Yahoo mail text messages in Safari on my Mac Pro after Snow Leopard, the wording is very garbled. Looks like o's, s's, c's, some caps, with lots of spaces intermixed. Messages look ok on Firefox, on same machine. New messages and reading sent messages look ok on my MacBook and MB Air. When cutting and pasting into something else (like this window), the text looks fine. I can compose and send messages that look garbled, but the right words and letters go out. HTML messages look ok. Any clues for solution?

I have this happening in bunch of different HTML pages. Here's a screenshot of the same page in Safari (Version 4.0.3 (6531.9)) and Mac OS X 1.6.1 side by side with Camino:
https://dl.getdropbox.com/u/362958/miscwebimages/Screen%20shot%202009-09-22%20at%2018.35.47.png
Camino renders the page correctly. Safari is really unusable with this problem. Tried switching to and from 64-bit mode in Safari, didn't help either.
Message was edited by: Attila Szegedi

Can't get some websites to work after snow leopard install, java maybe?

I'm a day trader. I use TD Ameritrade every day to work on. I believe the real time streamer and level 2 quotes are all java based.
This past weekend I did the Snow Leopard install on my computer. Until this morning it seemed like all was well.
I go to ameritrade and try to log in and it keeps saying it doesn't recognize my log in. I called them and they are able to log into my account so its my computer. I went to the java preferences and there use to be a lot of java types there now there are just 2, could that some how be it?
Any suggestions?
Susan

Safari is a 64 bit application, is it worth starting the app in 32 bit mode and testing if it is any better.
use finder and highlight Safari in the applications directory, do a get Info (cmd i) and tick the 32 bit mode box and restart Safari.
If it does not help remember to revert back to 64 bit mode.

IPhone 3GS doesn't sync after snow leopard install

Since installing snow leopard, iTunes does not sync with my iPhone when I connect it to the computer. iPhoto automatically opens to sync, but iTunes is dormant, and does not list my phone under the devices menu.....help!!

This same thing happened to me today. Snow leopard install and now itunes cannot find any of our iphones. It might be nice IF APPLE ADDRESSED THIS ISSUE HERE ON THE THREAD. We also have a brand new iphone and can't even get it synced, which really really *****.
It bothers me that apple is not responding immediately to this issue.

TM backup disk cannot be found after Snow Leopard install

Message from elsewhere re-posted here after helpful advice from Apple Discussions Team.
Just installed Snow Leopard (with TM switched off though not unplugged) and got all the software updates available. I re-installed the TM installation disk. Everything went ok until I wanted to restore from my Time Capsule. I switched the big switch on. TM is continuing to make backups but when I want to locate folders to restore TM won't go back further than the day I installed Snow Leopard. Having selected the TM disk and entered the password the dialogue tells me that the TM backup disk cannot be found and offers me the select disk dialogue again. I have gone through the unplug/plug routine.
Through Migration Assistant I tried the contents of my Pictures folder (including all my iPhoto libraries) but it just supplied an empty folder. Since I didn't migrate at the time of the Snow install I wonder whether it was migrating the earliest backup it had made after the Snow install. This would make sense if "the Time Machine backup disk cannot be found", as the dialogue keeps telling me.
Anyone any ideas?

I'm not sure just what you did.
Did you reinstall Snow Leopard? Did you do a full restore?
First, just re-select your Time Capsule in TM Preferences.
If that doesn't help, try a "Full Reset" of TM per #A4 of the Time Machine - Troubleshooting *User Tip* at the top of this forum.
If that doesn't help, see #E2 there.
If still no help, use the Finder to see if you have two sparse bundles on your Time Capsule. If so, try mounting one manually by double-clicking it, then using the Browse option per #E2.

IMac won't wake after sleep

Hi
I have a brand new iMac 21.5" with Hybrid drive.
Its OS and apps are fully update to date.
Strange thing is that it won't wake from sleep.
To reboot, I have to turn the power off at the wall and back on again. Neither of the usual
wake/reboot processes work (holding the power button briefly or holding the power button for
> 10 seconds). No combination of opt/ctrl/cmd/power work either. I have to turn it off at the wall
and back on again, after which it immediately boots.
I've reset the SMC and NVRAM/PRAM.
I've checked the power options - which are set to defaults (sleep after 15 IIRC).
I've also checked the console log at the time of sleep - and there is no indication of anything
going wrong (an example is below).
Does anyone have any other ideas as to what I can try before going through the painful process
of sending it into the shop?
Many thanks.
Paul.
Console log below. You can see the machine went to sleep after 12:05pm, and I woke it up and 8:20pm. There seem to be no unusual messages in the middle.
(The SASL failure is email... still working on that).
29/04/15 12:05:33.391 pm identityservicesd[265]: <IMMacNotificationCenterManager: 0x7fde94947690>:   DND Enabled: YES
29/04/15 12:05:33.392 pm identityservicesd[265]: <IMMacNotificationCenterManager: 0x7fde94947690>: Updating enabled: NO   (Topics: (
29/04/15 12:05:36.577 pm Mail[241]: Failed to start the SASL connection
SASL(-1): generic failure: XOAUTH2 requires user
29/04/15 12:05:44.142 pm Mail[241]: Failed to start the SASL connection
SASL(-1): generic failure: XOAUTH2 requires user
29/04/15 8:20:11.406 pm distnoted[232]: # distnote server agent absolute time: 6.328668630   civil time: Wed Apr 29 20:20:11 2015   pid: 232 uid: 506 root: no
29/04/15 8:20:11.592 pm otherbsd[231]: Could not get containing identifier from bundle: CFBundle 0x7fa663c16190 </Applications/Utilities/HP Utility> (not loaded)
29/04/15 8:20:11.592 pm otherbsd[231]: Could not obtain containing identifier for LoginItem. This LoginItem will not be bootstrapped: LoginItems/HP%20Device%20Monitor.app/ -- file:///Applications/Utilities/HP%20Utility/Contents/Library/LoginItems/HP%20De vice%20Monitor.app/Contents/Library/

I have gone to the apple support team - and they took me to the standard apple "what happens if your mac won't turn on" page
(If your Mac won't turn on - Apple Support) and walked me through the standard checks (which I'd already done).
The support guy thought it was a bad driver - I'm not so sure as I haven't installed anything new (just updates).
Anyway - I was just hoping/wondering someone in the wider community had seen this issue before I take the machine
in for servicing.

Can't Print After Snow Leopard Install?

My network includes iMac(2.93 GHz Intel Core 2 Duo), a Compaq laptop and Ativa router (AWGR54 Wireless G v01)(Belkin),Brother MFC6490CW (all-in-one wireless). All working fine together.
Added a brand new Macbook running Snow Leopard which connects to internet/email just fine, but WOULD NOT PRINT to Brother MFC6490CW printer. When I upgraded iMac from Leopard to Snow Leopard 10.6 it also stopped printing wirelessly to Brother MFC6490CW. So now both iMac and Macbook won't print unless wired.
Any ideas?

When I upgraded iMac from Leopard to Snow Leopard 10.6 it also stopped printing wirelessly to Brother MFC6490CW.
I thought I had this same issue with my Epson printer when wireless printing. Actually, in SL, wireless printing is very slow at least with an Epson. Takes about 5 minutes or so for wireless print to even start. When checking the printing status app, it will start out saying "printer ready." Then after a few minutes it will say "looking for printer." A few minutes later it will say "printing."
When I go into the next room where the printer is, the green light is "flashing" letting me know that "printing" has started.
So I guess what I am trying to say is to check the printing status app after you click "print." It's possible "Brother" is just as slow as "Epson."
Message was edited by: CMCSK

DVD Drives not working after Snow Leopard install

Hello all. I'm having problems after installing Snow Leopard. Om my MacBook Pro, my DVD drive doesn't even read discs anymore. It keeps it spinning for a while and then ejects it.
Coincidentally, the drive on my iMac 3+ GHZ is not accepting my discs into the DVD drive. It's not sucking in the discs anymore.
Both of these things started happening right after the Snow Leopard installation.
Can anyone help?

Have been running without trouble and had total ability to burn disc images to DVD until SL installation. after installation, every burn attempt fails to complete, give me an unrecoverabl, unable to restart error. I does burn data to the disc, but fails at some point near the end of the burn wich renders the disc a "coaster". I put my spare HDD back in wich was running 10.5, the problem exists with that drive also. My next step was to load a fresh drive with 10.5, even then the problem exists. I find it hard to believe that the drive failed exactly when SL was installed, more likely that the installation changed a hardware setting, or installed a firmware update which cause the problem. As I am a repair tech, I have done a ton of reaserch on the subject, and I find that litterally 10's of thousands of people have had the same issue after the SL upgrade. Come on Apple, I always heard you were better than Microsoft, but as everyone can see there is a problem. Get working on the fix and patch it just like Microsoft.

Mac will not boot after Snow Leopard install

I recently had a HD crash. Replaced the HD and installed Snow Leopard from a image file on an external HD. Install went great. I copied over data files and things seems just fine. My first reboot after the install and the Mini won't boot. I am stuck with the Apple Logo and a spinning wheel. I ran disk utility and the new HD checks out fine. When I boot with the external HD, it still sees my Mini HD. I tried restarting with Command/Option/P/R but that didn't do anything. Any advice?

I'm in a slightly similar spot- no crashes, but-- What I want to hopefully do is run my Tiger ppc apps (3) for CAD on my New- 5 weeks old) Lion Factory Installed machine. The ( November) First Aid Issue of Mac Life mentions a way
way to get external boots, UNLESS they are the Factory installed ( Lions). In the meantime----
Johnny

White Screen After Snow Leopard Install

I just installed Snow Leopard on a late 2007 MacBook. Verified the disk before and got all updates after. Now, whenever the machine goes to sleep, it wakes up frozen. Restarting produces a plain white screen. If left, it will eventually show a folder with a question mark, like it can't find the startup disk. It needs to be restarted several times before booting up again. The startup disk has been selected in System Prefs more than once.
I've found several references to this being an old problem, but I have not found a solution. Has this problem been solved?

R C-R wrote:
I suggest that you run the Apple Hardware Test in extended mode to see if it finds anything wrong with the hardware.
Thanks, I'll try that. But I doubt this is a hardware issue. I'm pretty sure this is a Snow Leopard issue, since many others have had this same problem after upgrading.

Mac Pro seems to be missing 0.5 GB of ram after Snow Leopard install

I just installed Snow Leopard on my Mac Pro (2 x 2.8 GHz Quad-Core Intel Xeon). The computer has only ever had the default 2 GB of RAM that comes with it from Apple. I know I need more, it's on order. The odd thing that I noticed after installing Snow Leopard is that the computer now only reports 1.5 GB or RAM in the "About This Mac" box. Specifically it says: "1.5 GB 800 MHz DDR2 FB-DIMM". Odd.
Second if I click "More Info..." below is what I see in the memory slots.
Does anyone know what might have caused this, or if its possible to get that 0.5 GB back?
Second I just ordered 8 GB of RAM (MACMEM 4Gx2|KST KTA-MP800K2/8G R). If the above issue doesn't get resolved what do you suggest I do when the new RAM arrives? Should I just add in the new stuff for a total of 9.5 GB, or should I also take out the existing RAM that's reporting odd values? I'm wondering if the missing 0.5 GB is a symptom of other issues, and maybe that RAM is "sick" and could slow things down somehow.
Thanks for any ideas.
Jesse
Memory Slots:
ECC: Enabled
DIMM Riser B/DIMM 1:
Size: 1 GB
Type: DDR2 FB-DIMM
Speed: 800 MHz
Status: OK
Manufacturer: 0x802C
Part Number: 0x3138484631323837324A4438304544364434
Serial Number: 0xD834438C
DIMM Riser B/DIMM 2:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
DIMM Riser A/DIMM 1:
Size: 512 MB
Type: DDR2 FB-DIMM
Speed: 800 MHz
Status: OK
Manufacturer: 0x802C
Part Number: 0x3138484631323837324A4438304544364434
Serial Number: 0xD8344473
DIMM Riser A/DIMM 2:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
DIMM Riser B/DIMM 3:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
DIMM Riser B/DIMM 4:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
DIMM Riser A/DIMM 3:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
DIMM Riser A/DIMM 4:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty

I am running a '07 Mac Pro that has had 7GB RAM since I bought it almost 3 years ago - the original 2x512MB + 6x1GB purchased from Crucial.com. Suddenly, after installing Snow Leopard, only 6GB are being recognized; two of the 1GB DIMM's now read as 512MB in System Profiler, and the Part Number and Serial Number listed for those modules are incorrect.
After searching these forums for ideas, I have tried:
• Resetting the PRAM -- no change
• Running Apple Hardware Test -- no problems found
• Running TechTool Deluxe 3.1.3 (updated for Snow Leopard) -- no problems found
• Running TechTool Pro 5.1.6 (updated for Snow Leopard) -- no problems found
• Running system scanner (beta) from Crucial.com - cannot read installed RAM
The only thing I haven't tried is physically reinstalling the modules, but since the computer hasn't moved in months that seems pretty doubtful. If I make any progress I'll post again, otherwise, I'll be contacting Crucial for replacements.

IMac won't wake after Snow Leopard install

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