IMac freezing after upgrade

Hi, I have an iMac (20 inch, mid 2007, Intel 2GHz), recently upgraded to 4GB RAM and Snow Leopard (previously 10.4)
I'm now getting frequent freezes, which can only be rectified by powering down, then on again.
Prior to some of the freezes, I'm getting the following message on the console:
Microsoft Word[162] *** __NSAutoreleaseNoPool(): Object 0x221320 of class NSThread autoreleased with no pool in place - just leaking
Any ideas?
Thanks

Some Kingston versions have caused many problems. If it is Kingston's value RAM, then remove and replace it as that is one that consistenly caused issues. I'd recommend a higher quality RAM from reputable resellers such as Crucial or OWC (www.macsales.com), OWC even will give you a trade in value on your old RAM and offers very high quality tech support.

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Older imac freezing after upgrading to Snow Leopard

Hey guys, I can some help with this older imac please.Nothing written on the unit anywhere for references. Info shows:
imac 7.1
Intel core 2 duo
2 ghz
4gb ram
Serial Number: W8******X85
I had Tiger on it, I wiped the drive clean and installed Snow Leopard but now every now and then it freezes, it did the same thing when I upgraded to Yosemite but snow leopard works a lot better than Yosemite, any ideas please?
<Edited By Host>

Please detail ALL you have done so far in the way of troubleshooting? Need this info to avoid the been there done that scenarios.
How large is your HD and how much space do you have left?
Nothing written on the unit anywhere for references.
All info about your Mac is listed in Apple>About this Mac>More Info
================
If you have not already done so....
Disconnect all devices from the computer then do the following:
Boot up from your Snow Leopard Install DVD (or the system DVD that originally came w/your comp) while holding down the "c" key.
Select the language you wish to use, and then choose "Disk Utility" from the menu bar.
Your HD should appear in a panel on the left hand side of the window which opens. Select it and then click on the "repair disk" button in the right hand section of the window.
Once this process has been completed restart your computer and repair permissions directly from Disk Utility.
If Disk Utility is unable to complete the repair, you will need to use a stronger 3rd party utility like DiskWarrior, Techtool PRO (not Deluxe) or Drive Genius.

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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, or by a peripheral device.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
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Hi JZN1994,
Welcome to the Apple Support Communities! I understand that after updating your computer to 10.9.3 iTunes stops responding when an iPhone is connected to it. There may be few different steps you will need to go through to get this resolved. I suggest working through the steps in the attached article.
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http://support.apple.com/kb/ts3219
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Permissions Repair:
Go to applications then to the "other" folder then go to disk utility, on the left hand side you will see a white box. Select the second option, usually called "mac HD" with that selected click on "repair permissions" in the center towards the bottom of the screen. Wait for it to complete, then see if this fixes the issue.
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<Personal Information Edited by Host>

I have had consistent freezes after my MBP (15 in 2.4/2.2 GHz) goes to sleep since I installed Mavericks. When it's frozen, the fan is going hard, but nothing will wake it up -- not mouse motion, key presses (including "force quit" chord), closing and opening lid, etc. I have to force a shutdown with the power button, and restart it.
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My Imac freezes after...

After being in sleep mode, my Imac freezes whenever I try to play internet-based video. It is the newest model and I've had it for about 6 weeks. It is realy frustrating!

You have 90 days Free Telephone Support... (3 Years if you Purchased AppleCare).
Give AppleCare a call and ask for assistance...

[SOLVED] System freeze after upgrade linux-3.12.9-2 to linux-3.13.4-1

After upgrading from kernel 3.12.9 to 3.13.4 (booth x86_64 architecture) i detected system freeze after round about 0.5s of the login screen about 80% of the time.
So i first thought it coulbe be the the ati driver and uninstalled that via livecd/chroot.
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Last edited by schlumpfimsumpf (2014-04-10 19:16:57)

Me wrote:
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H/W path Device Class Description
===============================================
system GA-970A-UD3
/0 bus GA-970A-UD3
/0/0 memory 128KiB BIOS
/0/4 processor Athlon
/0/4/a memory 128KiB L1 cache
/0/4/c memory 2MiB L3 cache
/0/b memory 128KiB L1 cache
/0/29 memory 8GiB System Memory
/0/29/0 memory DIMM 1600 MHz (0,6 ns) [empty]
/0/29/1 memory DIMM 1600 MHz (0,6 ns) [empty]
/0/29/2 memory 4GiB DIMM 1600 MHz (0,6 ns)
/0/29/3 memory 4GiB DIMM 1600 MHz (0,6 ns)
/0/100 bridge RD890 PCI to PCI bridge (external gfx0 port B)
/0/100/0.2 generic RD990 I/O Memory Management Unit (IOMMU)
/0/100/2 bridge RD890 PCI to PCI bridge (PCI express gpp port B)
/0/100/2/0 display GF106 [GeForce GTS 450]
/0/100/2/0.1 multimedia GF106 High Definition Audio Controller
/0/100/4 bridge RD890 PCI to PCI bridge (PCI express gpp port D)
/0/100/4/0 bus EJ168 USB 3.0 Host Controller
/0/100/4/0/0 usb3 bus xHCI Host Controller
/0/100/4/0/0/2 storage ADATA USB Flash Drive
/0/100/4/0/1 usb2 bus xHCI Host Controller
/0/100/9 bridge RD890 PCI to PCI bridge (PCI express gpp port H)
/0/100/9/0 eth0 network RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
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/0/100/a/0/0 usb8 bus xHCI Host Controller
/0/100/a/0/1 usb7 bus xHCI Host Controller
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/0/100/12 bus SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
/0/100/12/1 usb6 bus OHCI Host Controller
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/0/100/12.2 bus SB7x0/SB8x0/SB9x0 USB EHCI Controller
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/0/100/13/1/1 input USB Receiver
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/0/101 bridge Family 15h Processor Function 0
/0/102 bridge Family 15h Processor Function 1
/0/103 bridge Family 15h Processor Function 2
/0/104 bridge Family 15h Processor Function 3
/0/105 bridge Family 15h Processor Function 4
/0/106 bridge Family 15h Processor Function 5
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IMac freezing after upgrade

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