I'm not sure why this started but just recently my computer has locked up a few times. a light gray bar has come across the top 1/5 of the screen. It is quite interesting seeing as how I haven't really been doing anything when it came up. just surfing the web.

Please let me know if you have any idea whats going on. My specs are listed in my sig

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.:AMD Machine:.
2.6GHz Quad Phenom 9850.:.Biostar TA790GX.:.8GB DDR2 1066MHz.:.nVidia 8600GT.:.500GB Sata HD.:.Running: LawlessPPc 10.5.4 Update to 10.5.7.:.Voodoo Kernel REV A:.

.:Macbook Pro:.
Intel Core 2 Duo.:.2GB DDR2.:.200GB HD:.

if it only happens when your on the net maybe its a LAN issue, what LAN card do you have? i tried to find out by looking at your MoBo but couldnt see it

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iMac ::: Mac OS X 10.6.1 ::: Intel Core2Duo 2.93GHz ::: NVIDIA Geforce GT 120 256MB ::: 4GB DDR3 RAM

Milanca Project ::: Mac OS X 10.6.1 Retail ::: Vanilla Kernel ::: Intel Core2Quad Q6600 2.4GHz ::: NVIDIA GeForce 8600 GT 256MB ::: 4GB DDR2 RAM ::: GIGABYTE GA-EP35C-DS3R

it happened once on net, once using logic pro, and once using dvd ripper. don't think its any issue in particular

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.:AMD Machine:.
2.6GHz Quad Phenom 9850.:.Biostar TA790GX.:.8GB DDR2 1066MHz.:.nVidia 8600GT.:.500GB Sata HD.:.Running: LawlessPPc 10.5.4 Update to 10.5.7.:.Voodoo Kernel REV A:.

.:Macbook Pro:.
Intel Core 2 Duo.:.2GB DDR2.:.200GB HD:.

Despite the fact that your only surfing is there a possibility that something is pushing your memory usage past 3.5GB?

I had a freeze problem where when memory usage past 3.5GB it would freeze. This generally would happen during heavy usage however in two occasions I had just started up and was surfing and had it freeze up with screen artifacts.

If your not already using maxmem to limit memory on boot you might give it a try. I would try maxmem=2048 (2GB) to be safe and if it fixes the problem nudge it up until you start having problems again. I have had pretty good luck using maxmem=3584 (3.5GB) with no crashes since.

If you find that fixed your problem you can add it to your com.apple.boot.plist in /Library/Preferences/SystemConfiguration/

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MOBO: Z77MX-QUO-AOS CPU: Core i7 3770K GPU: MSI N760 TF 2GD5/OC Case: Modded MacPro2,1
Memory: 32GB Corsair Vengeance (CMY32GX3M4A1600C9) Wifi: Airport Extreme bcm94321MCA BIOS: HermitCrab Labs H3A.816M
Monitor: AOC Q2963Pm 29" WFHD 2560x1080 21:9
Interests: KDE on Apple Darwin, Keeping it real with the command line, Helping those that help themselves

Someone from insanelymac made a fix for to allow nforce users to be able to use 4GB of ram and you can find it at: http://forum.insanelymac.com/index.php?showtopic=127611

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GA-Z68XP-UD3: Lion 10.7.3, Windows 7 Professional 64bit SP1 and FreeBSD 9-RELEASE, Core i5 2500K @ 3.3GHz, 16GB 1333 Mhz DDR3 ram(Soon), 1GB GDDR5 Nvidia Geforce GTX 560 Ti, 2X 1TB Samsung F3 SATA HDDs, 1X WDC Blue 500GB HDD; Dell Mini 10v: Obsidian Black, 2GB DDR2 533MHz Ram, 1.6GHz Intel Atom N270, 120GB HDD, 6-Cell, Mac OS X Snow Leopard 10.6.8 Build 10K549

I gave the fix a try and am pleased with the results. Im using all 4GB of memory and have drained all but a bit less than a 100mb and could not make my fig crash.

I have only been using it for a few days so I can't say yet if the fix is good or if it creates any new issues.

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MOBO: Z77MX-QUO-AOS CPU: Core i7 3770K GPU: MSI N760 TF 2GD5/OC Case: Modded MacPro2,1
Memory: 32GB Corsair Vengeance (CMY32GX3M4A1600C9) Wifi: Airport Extreme bcm94321MCA BIOS: HermitCrab Labs H3A.816M
Monitor: AOC Q2963Pm 29" WFHD 2560x1080 21:9
Interests: KDE on Apple Darwin, Keeping it real with the command line, Helping those that help themselves

I've made a similar post over at the other thread but I'll state it here as well for simplicity sake. This "fix" works; it allows for more than 4GB of RAM... however, on my system with an nForce4 MCP61 chipset with a SATA DVD-RW. The DVD-RW does not respond anymore... until I replace the kext with the old one and go back to less than 4GB RAM. Since there are no IDE ports on my board so this "fix" is only good for systems like mine with external DVD drives.

Hope this helps.

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