8800 gt issue

I've been running the Nvidia 8800 gt card for about 2 weeks on my 1.1 Mac Pro without any problems (got the correct card for my computer model). Turned on the display earlier tonight while the computer was running and the screen was flickering and showing random colors. Turned the computer off, rebooted. Apple boot screen came on, then it switched to a blue screen and nothing happened. Tried resetting PRAM, same result. Put back the old card (7300 GT) and the computer booted up perfectly. Tried reinstalling 10.5.7, put back 8800 GT, same blue screen on boot. Also tried d/l the Leopard Graphics Update 1.0, but it wont install (claims my OS X hd does not meet the requirements for install).
Does anyone have any suggestions?
Thanks

Same thing happened to me. Also 1.1 MP and 8800. I heard it happens to a lot of people but there is no real explanation or solution. I ended up having to swap my old x1900 card while waiting for the 4870.
Its been said that 10.5.7 either does something to fry the card or do something with the ports. Who knows. All I know is that there are a lot of people with same issue and no solution other than "use your Apple Care"...

Similar Messages

8800 headphone issues

Once I surrendered to the fact that my Blackberry 8800 ( tmobile ) would not allow me to use my s9 stereo bluetooth headphones >sigh< I purchased a pair of "Body Glove" wired stereo headphones that had the correct size adapter.
I listen to my music almost all day and prefer to rarely touch the phone itself, using the headphones most of the day and a Bluetooth ( S500 ) earpiece in the evening.
For the second time ( second phone) the headset connection has failed. It seems that after about a month of use, first the headset crackles when pluged in but minor "wiggling" will make it work; although it may need to be plugged and unplugged a few time a day. This degrades over the day(s) to popping and humming and intermittent failures that become so irritating I just quit using the Blackberry as an Mp3 player.
This truly stinks becauase one of the main reasons I chose the 8800 was to be able to listen to my music while I work and not miss a phone call.
Anyone else have this problem?
TIA,
T

I went through three headsets before I got it to work.
I bought a Radio shack adapter. It sounds funny, but it was a little thicker the 3.5 standard, there was no wiggle in it,
which was my problem as well. Try it.
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NVIDIA GeForce 8800 GS issue

I have a 24 inch iMac with a NVIDIA GeForce 8800 GS video card. The computer is out of warranty.
A while back I noticed that, while playing World of Warcraft, the computer would have a sort of graphical glitch and then freeze up.
This happened a few times, infrequently, until finally the computer would not start at all.
At the startup screen with the apple logo, the wheel would spin a minute, then pixels would appear all over the screen and it would freeze. The screen would then turn to a bright orange color and stay that way.
I took it in to the mac store, where I was told the video card had failed.
They replaced the video card, which I had to pay for, due to the computer being out of warranty.
I have had the new video card now for about two weeks. I just loaded World of Warcraft for the second time on it. After playing for less than 20 minutes, the screen glitched out (pixelated flashes) and then froze.
I am now afraid to play the game.
I have never had the computer freeze while doing anything else.
Considering I just spent $600 to replace the last video card, is there anything I can do to figure out what exactly is causing this problem?
Thanks.

Hi Riley71
I'm not sure what you were charged $600 for, but I would take it back and either ask for my $600 back or that it be fixed correctly.
Dennis

Oki 8800 printer issue

After replacing the belt unit in my Okidata C8800 printer, I get this message: the optical photoconductor needs to be replaced. Plus, my supply levels show the belt still needing replacement. I can print black, but all the colors print as pink. Oki suggested I reinstall the print driver which I did to no avail. Now Oki says it's a "Mac problem." Anyone familiar with this issue?

That clearly is not an Apple issue, you need to escalate the issue with Okidata!

P965 Platinum FSB is temperature dependent.

After much testing with both the kentsfield and conroe and various video cards, cases, coolers, etc. I've come to the conclusion that the max FSB on this board is heavily dependent on temperature. In a cool case with a midrange video card I had no problems getting to 380FSB relatively easily. Throw in an 8800GTX with its fan right next to one of the MB heatsinks and suddenly Windows no longer boots. However the system will POST as high as 425, but not recognize the hard drive properly.
Some things to note:
333FSB will probably work with little or no voltage increase on the chipset.
The voltage sweet spot on the chipset is the 1.49 or 1.56 setting, though if you watercool it you could probably use the higher ones.
360FSB should be reachable in most systems at 1.56v or less (as we've seen)
380FSB will work at 1.56v in a cool system.
If you want 400+, you're going to need to replace the stock chipset coolers with something more powerful, but it's likely not that hard to achieve with a high end air cooler or waterblock.
I don't think you'll see 433 without max voltage and serious watercooling.

Actually I don't even think it's the MCH. I think it's the northbridge-southbridge interconnect. As I mentioned in I can POST 425 consistently, but it fails when it goes to boot the HD. 395 and lower produce errors regarding windows not finding the system directory. I think since the southbridge is directly opposite the 8800GTX's fan it's getting overheated and when the MCH can't maintain proper communication with the rest of the chipset it flips out. If I change cards to a Radeon x1950XTX I can run 380FSB stable all day long, but even with an 850W PSU the 8800 causes issues and it's much much hotter. Also I've hooked a power monitor up and even at peak load with the 8800 and kentsfield the system draws a max of 309 watts. If it was really a power issue, I seriously doubt I would have been able to forget to plug in the 4pin +12v line to the motherboard and play BF2142 all night without noticing. Also the stability in both cases was definitely sensitive to the ambient temperature.
I don't know if I'll get a chance to put different coolers on, but I'd suspect that it will make a significant difference. The good news is that since there's no massive heatpipe system that you have to rip off half the board it shouldn't be too hard to get better cooling on it.

Mac Pro Screen Freezing Issue with NVIDIA 8800 GT too

There were lots of entry in threads, where the screen freezing issue was described (disorted screen with strange lines, only reboot helps). Nearly all cases seem to be related to the ATI 2600 card.
http://discussions.apple.com/thread.jspa?threadID=1358062&tstart=30
http://discussions.apple.com/thread.jspa?threadID=1365277&tstart=0
I opened this new thread to show, that this problems occurs not only for the ATI card but for the NVIDIA 8800 card, too.
My MacPro was delivered 8 days ago and was running without any problems. But all of a sudden, I got that screen freeze. And it wasn't the first time, I was heavely working 2-3 hours with that computer.
In total, 2 screen freezes showed on my computer. The first one during working with the computer. The second one during booting into MacOS X. The screen freeze occured during the boot phase with the grey screen and the spinning wheel.
My configuration:
MacPro 2.8, Dual Quad Core
6 GB RAM
3 harddisks, 1 standard from Apple, 2 Samsung with 750GB
MacOS 10.5.2
Formac 20" Monitor
Perhaps others have this problem, too? Than we should emphasize, that this is not an ATI related problem.

I've actually been having the freezing issue for a while now but I didn't have the know-how to troubleshoot it (PC tech trying to support the only Mac lab in the building).
MacPro will freeze randomly (no trend in time, system strain, or open programs). The mouse will operate but will not interact with anything.
Specs:
MacPro - Model 1,1
Dual Core Xeon 2.66
2gb RAM
nVidia GeForce 7300 GT
Mac OS 10.4.11
The machine always has 2 displays connected to it so the workaround that was discussed for the ATI 2600 doesn't apply. I had 1 display connected here in my shop and it froze for that as well.
Message was edited by: DocturKnowles

Photoshop CS4 Issue with NVIDIA 8800 Video Card?

I have an Mac Pro Intel 2 x 2.8 GHz Quad-Core Xeon with 6GB RAM running OS X 10.5.5 and an NVIDIA GeForce 8800 GT driving two monitors.
I just installed Adobe Photoshop CS4 fresh from a factory CD.
When I perform a Distort -> Lens Correction or do a Free Transform to rotate an image an arbitrary amount, and then follow that with a resize (tried 133% and 166%), the image ends up with a pattern of gray plaid overlaid -- especially visible in the darkest shadows. The pattern appears only on the rotated layers of an image.
This pattern persists if I quit and restart Photoshop, BUT -- there's no pattern visible if I open the same image in Photoshop CS3. It only appears in CS4.
This is easy to reproduce -- I just tried it with an image I created in Photoshop at 5x7" at 240dpi and filled with solid black.
I dropped a Bug Report to Adobe, and they wrote back suggesting "This is most likely an issue with your video card driver."
Anybody else out there having this issue? Anyone with an identical setup want to test this?
-=-Joe

You are in the PowerMac (PPC) G5 discussion....
Mac Pro is over http://discussions.apple.com/category.jspa?categoryID=194
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb405745&sliceId=2
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb404898
Would be nice if there were separate graphic drivers to play with.... ;-(

Photoshop CS4 Issues with the NVIDIA GeForce 8800?

I have an Mac Pro Intel 2 x 2.8 GHz Quad-Core Xeon with 6GB RAM running OS X 10.5.5 and an NVIDIA GeForce 8800 GT driving two monitors.
I just installed Adobe Photoshop CS4 fresh from a factory CD.
When I perform a Distort -> Lens Correction or do a Free Transform to rotate an image an arbitrary amount, and then follow that with a resize (tried 133% and 166%), the image ends up with a pattern of gray plaid overlaid -- especially visible in the darkest shadows. The pattern appears only on the rotated layers of an image.
This pattern persists if I quit and restart Photoshop, BUT -- there's no pattern visible if I open the same image in Photoshop CS3. It only appears in CS4.
This is easy to reproduce -- I just tried it with an image I created in Photoshop at 5x7" at 240dpi and filled with solid black.
I dropped a Bug Report to Adobe, and they wrote back suggesting "This is most likely an issue with your video card driver."
Anybody else out there having this issue? Anyone with an identical setup want to test this?
-=-Joe

sako75 wrote:
I'm seeing what you are talking about when viewing at 200% and up on my 300dpi images. I'm thinking that its the new pixel grid overlay for dialing in the details on the image.
No, that's not it. I can see it at 100%, and only on images that have been rotated and resized.
In fact, yesterday I rotated one layer under an unrotated layer, and only the rotated layer showed the plaid pattern.
And it's not a simple grid -- it's a real plaid-like gray, almost like stretch marks.
-=-Joe

GeForce 8800 Core Image issues finally worked out?

Getting ready to order a new Mac Pro, and deciding between the Radeon 2600 and GeForce 8800 I have been reading that for games the 8800 is smoking fast - but for normal work in Aperture/etc it's actuall slower than the Radeon. Also saw some people reporting issues playing back HD video on the 8800...
Have these issues finally been worked out? Is the 8800 working well for HD video, moving windows around without stuttering, core image, etc...??
Thanks in advance for the replies...

I'm quite sure the 8800 will do well as a gaming card under windows. But if you use the computer mainly for CS3, Aperture etc, then I think you should go for the cheaper 2600 and then upgrade.
Barefeats has recently tested the ATi 4870x2 and the GTS280 under Vista and the former is significantly stronger. http://www.barefeats.com/harper19.html.
Note that in that article it is said that ATi "has optimized their Mac Edition drivers and firmware for the Radeon 2600 XT and 3870 so that they run Core Image effects much faster than comparable nVidia cards including the GeForce 8800 GT and Quadro FX 5600." This was news to me but perhaps it answers your question in part at least.
I have not seen any solutions for the HD video playback issue. I'm using the 8800 but don't do HD so I have no personal experience of that.
Btw note Barefeats finding that a 2,8 Mac Pro is as strong as a 3,2 Mac Pro for graphics work.
/p
Message was edited by: pullman

Banding Issues with GeForce 8800

Hi,
I just installed CS4 Production Premium on a new Mac Pro. The system specs are:
2x 3 GHz Quad-Core Intel Xeon
10GB RAM
NVIDIA GeForce 8800 GT 512MB
2x 1TB SAS drives
Samsung 30" Syncmaster 305T Plus
OSX 10.5.6 (both OSX and CS4 are up to date)
When I was working in After Effects, I noticed some dramatic banding issues when lighting a scene. I was curious, so I created a gradient and the same banding was visible. I tried creating a gradient in PS, AI and Flash: same results. Consistent across all CS4 products, and the image depth (8bit, 16bit or 32bit) doesn't affect it at all. Applying a blur effect to any image also produces banding.
I tried finding some gradients through Google image search. They look fine in Firefox, but when I open them in Photoshop the banding once again pops up. Same in Preview to some extent, but not as drastic.
Two other guys in my office are running CS4 with the same monitor. We're running identically calibrated color profiles, and working in the same color space. They have no problems. The only difference between their setup and mine is that they're using Macbook Pros.
Things I have tried: turning OpenGL on/off and toggling the individual GPU settings, working in all available color spaces, working with variable DPI, using another monitor, changing the synchronized color space through Bridge, changing the conversion options (dither, engine, etc), changing the color management policies, working in CMYK/RGB/Gray/Lab, changing the pixel aspect ratio, altering the scratch disks and memory allocation, dumping my CS4 preferences and starting over... none of this affects the banding. A 16bit 72DPI image that's a straight black to white gradient consists of nothing more than 12 or so very visible steps. I'm starting to wonder if this is a graphics card issue.
All the work I'm doing is for screen, so printers don't factor into the equation. I'd appreciate any tips or suggestions anyone can offer.

Well, one thing I notice is that attempting to open the linked .png in Photoshop, it has an embedded "SyncMaster" profile.
Opening it in Photoshop CS4, maintaining that profile, I see banding (although very subtle in the second (bottom) example). The top example exhibits a stippled effect at the band edges at 100% scale.
Opening it and converting it to Adobe RGB 1998, I see almost no sign of banding in that bottom example.
Opening it as is in Preview, I see the banding again.
Creating a new radial gradient in Photoshop CS4, 1300 pixels wide, #666666 to #000000, at 100% scale, it is a smooth transition with the barest hint of banding. Also, my #666666 is noticeably lighter than in your example.
Offhand, I'm not sure which factors affect your workflow. But I doubt it is your video card unless it is set for, say 16 bit or 8 bit...
Neil

Incoming calls issue with 8800 carbon

Hi I just bought an 8800 carbon but I'm having an answering issue. I can make calls absolutely fine but when receiving calls, it resets my phone (the caller gets a busy tone and the phone goes back to the intro screen & tries to get service again)... No idea what the problem could be. I'm with Fido in Canada. Any suggestions?
Thanks

hey guys I found the problem. It was the name display option with Fido. I removed it from my plan and its all good now!

MSI 8800 Ultra fan issue

Hello!
I have a weird issue with my 8800 ultra graphics card.When the GPU is running on idle the temps are around 48C-50C.I tried to play battlefield 3 and the temps are going up to 73C and my pc is crashing.The problem is that the graphics card fan is not running on 100% and when the rpm drops down it lets the temp go above 70C.When the fan goes on 100% the temerature immediately drops down under 60C.I have tried to download MSI Afterburner,Riva tuner,Nvidia ntune but all is the same.If I munually alter the fan speed on 100% is still not running on 100% druing Battlefield 3.I can hear when the fan slows down and when speeds up the system is crashed...nothing helps just the restart..

Well I cant tell you that because I have got only that game installed on my pc. But that before I have played COD Modern Warefare 3 without any problems.Even this as well the game is running smoothly than the fan rpm drops down and a minute later the whole system is crashed....
Is there any other way the keep the fan speed on max?Because with the softwares what I have used they keep the fan running on 100% but when I start the BF3 it seems like the card is completly ignoring my settings...

8800 GTX Randomly Freeze, Sound Continues (Card verified to be the issue)

So I just built a new system a few weeks ago:
MOBO: MSI P35 Platinum Rev 1.1
Video: MSI NX8800GTX-T2D768E-HD OC
Core: Intel e6850 Core 2 Duo
Case: Antec P180 Case
PSU: Antec True Power Trio TP3-550
So I can play a game for maybe 2 or 3 days straight(for hours on end), no problems at all.
Then out of nowhere, I get freezing after maybe 5 - 20 minutes of play.
The freeze is a full-video freeze, but the sound continues to play in the background.
I can't alt-tab or ctrl-alt-delete out of it, though I can ping the computer from a different box. There is no BSOD or error message of any kind.
The only way to get out of it is to hit the restart button on the computer.
After I restart the computer, and game, I play for another 10 minutes and get another freeze.
The cycle just continues after that, freeze after freeze.
The next day, I try to play again...and once again no freezes at all for several days.
I am using NVIDIA 162.18 drivers, but I have tried some older and newer ones.
This is on a fresh Windows XP Pro SP2 install, with newest drivers, and a few games.
I am under the assumption that the TP3-550 is plenty to run this video card.
It has the 2 six-pin PCI-E leads, and the motherboard accepts an additional 12V molex for additional power.
I also assume that if power was the issue, the freezes would occur at a regular interval.
What could be the issue? How do I go from no freezes at all one day, to every 15 minutes the next? I am thinking driver issues, but this card has been out for quite some time.
I've had the freezes occur in Company of Heroes, Fable, and Warrior Within
GPU Temp is running at 60 idle, 71 - 74C under load.
Though I have had it crash at 61, and 72 so I don't think that temp is the factor.
I know people sometimes have issues with the 8800 series freezing. It just irks me that it works great for days at a time, then randomly freezes.
Do I RMA it? Or just deal with the occasional freeze?

Ok,
I now have 2 things. A better description of the problem, and results from a different machine.
I tested my 8800GTX(factory OC settings) on an AMD single core processor, Asus Mobo, and an Antec TP3 - 650 power supply (the same power supply as mine, but 100 more watts).
I ran human head on his box and encountered the exact same result (as below) within 5 minutes.
The nature of this freeze is as follows.
1. Running human head for 5 - 30 minutes at factory settings, causes the crash to happen 100% of the time.
2. Randomly, I will hear the audio pause for a second or two, and the graphics freeze immediately.
3. The music than starts back up, and continues to play, but the graphics remain frozen.
4. The mouse can be moved around the screen, and hitting the cntl-alt-del combo causes the mouse arrow to turn to an hourglass.
5. The hardrive lights continue to flicker.
6. 2 to 3 minutes later, I get a BSOD with a minidump, and the system immediately reboots.
I have yet to analyze the minidump, but I assume that it will be irrelevant.
What irks me is that I was able to verify this issue on 2 systems at this time, and I have already RMA'd the board to msi once. They were not able to verify it, though they say that they ran 3Dmark06 on it over several passes.
My problem is that 3Dmark allows pauses between tests, which may clear the memory, or allow it to cool, or whatever it does. Human head does not have this feature.
So now I have to pay for the shipping, and basically demand a new one, whether or not they can verify it using 3D mark.
The only other thing I can guess is that the True Power 3 550(and possibly the 650), is not powerful enough to power this card.
I would think that the 2X 18A(and 2X 19A on the 650) would be enough though, and my friend was running his test on much lesser system.
I'm out of options, and hope that I am not stuck with this faulty card.

Another keyboard lock issue: 8800, upgraded to 4.5

Evening folks,
I'm having a problem with locking my keyboard. I can assign the Convenience Key to lock the keyboard, but Alt-Enter won't do the job. I've removed the Alt-Enter option from the Language menu. I've also removed the battery, sim, and memory card for over 2 minutes and that didn't work either. Having the Conv key lock the keyboard is a pain because I have large hands and am always hitting the Conv key (and I'd rather have the Conv key load Google Maps). Anyone have any suggestions?

I have the same issue. It drives me crazy. Sometimes it goes away and sometimes it comes back. But when phone is in sleep, when I press a button, it takes sometimes up to 5 seconds before the screen turns on!

FAQ: What features use the GPU and how do I troubleshoot GPU issues?

Photoshop CS6 GPU FAQ
Introduction
This document provides a quick reference guide to video card usage in Photoshop. Some features require a compatible video card to work; if the video card or its driver is defective or unsupported, those features will not work at all. Other features use the video card for acceleration and if the card or driver is defective those features will run more slowly.
Mercury Graphics Engine
The Mercury Graphics Engine (MGE) represents features that use video card, or GPU, acceleration. In Photoshop CS6, this new engine delivers near-instant results when editing with key tools such as Liquify, Warp, Lighting Effects and the Oil Paint filter. The new MGE delivers unprecedented responsiveness for a fluid feel as you work.
MGE is new to Photoshop CS6, and uses both the OpenGL and OpenCL frameworks. It does not use the proprietary CUDA framework from nVidia.
In order to use MGE, you must have a supported video card and updated driver. If you do not have a supported card, performance will be degraded. In most cases the acceleration is lost and the feature runs in the normal CPU mode. However, there are some features that will not work without a supported video card.
GPU features added in Photoshop CS6
Adaptive Wide Angle Filter (compatible video card required)
Liquify (accelerated by compatible video card with 512MB VRAM, GPU mode unavailable on Windows XP)
Oil Paint (compatible video card required)
Warp and Puppet Warp (accelerated by compatible video card, GPU mode unavailable on Windows XP)
Field Blur, Iris Blur, and Tilt/Shift (accelerated by compatible video
card supporting OpenCL, GPU mode unavailable on Windows XP)
Lighting Effects Gallery (compatible video card required with 512MB
VRAM, unavailable on Windows XP)
New 3D enhancements (3D features in Photoshop require a compatible video card with 512MB VRAM, unavailable on Windows XP):
Draggable Shadows
Ground plane reflections
Roughness
On-canvas UI controls
Ground plane
Liqht widgets on edge of canvas
IBL (image based light) controller
* Note that all 3D features are unavailable on Windows XP in Photoshop CS6
GPU features added in previous versions of Photoshop
Scrubby Zoom. See Zoom continuously
Heads Up Display (HUD) color picker. See Choose a color while painting
Color sampling ring. Choose colors with the Eyedropper tool
Brush dynamic resize and hardness control. See Resize or change hardness of cursors by dragging
Bristle Brush tip previews. Bristle tip shape options
Rule of thirds crop grid overlay. Crop images
Zoom enhancements. Smooth display at all zoom levels and temporary zoom. See Zoom continuouslyTemporarily zoom an image
Animated transitions for one-stop zoom.
Flick-panning.
Rotate the canvas. Use the Rotate View tool
View nonsquare pixel images. Adjust pixel aspect ratio
Pixel grid. Hide the pixel grid
Adobe Color Engine (ACE).
Draw Brush tip cursors. Resize or change hardness of cursors by dragging
Adobe Bridge GPU features
Preview panel
Full-screen preview
Review mode
See Preview and compare images in Adobe Bridge CS6 Help for information on all of these features.
GPU/OpenGL preferences in Photoshop CS6
The advantages of using a compatible video card (GPU) with Photoshop are that you can experience better performance and more features. Problems can occur if you have an older video card with limited VRAM or if you use other programs at the same time as Photoshop that use the GPU.
Choose Edit > Preferences (Windows) or Photoshop > Preferences (Mac OS).
In the Performance panel, make sure Use Graphics Processor is selected in GPU Settings.
Click Advanced Settings and specify the following options:
Mode > Basic
Mode > Normal
Mode > Advanced Provides the benefits of Normal mode as well as newer OpenGL advances that can result in improved performance.
Use Graphics Processor to Accelerate Computation
Use OpenCL Uses the GPU to accelerate the new blur filters (Field Blur, Iris Blur, and Tilt-Shift) – OpenCL will only be available on newer GPUs that support OpenCL v1.1 or higher
Anti-Alias Guides And Paths Allows the GPU hardware to smooth the edges of drawn guides and paths.
30 Bit Display (Windows only) Allows Photoshop to display 30 bit data directly to screen on video cards that support it
Quick GPU Troubleshooting Steps
You can experience problems such as artifacts, errors, and crashes if there are incompatibilities between Photoshop and the display components that access the GPU.
If you experience crashes, incorrectly rendered windows or objects, redraw issues, or performance issues while running Photoshop, first determine whether OpenGL is causing the problem.
Turn off OpenGL.
Choose Edit > Preferences (Windows) or Photoshop > Preferences (Mac OS).
In the Performance panel, uncheck Use Graphics Processor. Click OK.
Restart Photoshop, and perform the same function.
If the problem recurs while OpenGL Drawing is disabled, OpenGL is not the cause. For additional troubleshooting, see Troubleshoot system errors and freezes | Adobe software on Windows (cpsid_82252) or Troubleshoot system errors and freezes | Adobe software on Mac OS 10.x (cpsid_82414).
If the problem resolves, proceed with the rest of the troubleshooting steps to fix OpenGL.
Make sure that you're using the latest update of Photoshop.Updates fix bugs and issues.
Update the display driver.Updated display drivers can fix many issues, such as crashing, incorrectly rendered objects, and performance problems. Determine what video card you have and go directly to the manufacturer's website (nVidia or ATI/AMD) and download the latest driver. (Note: Simply doing a Windows Update is does not guarantee you are using the latest driver. You must go directly to the nVideo or ATI/AMD websites to get the absolute latest driver.) After you update your driver, turn on Use Graphics Processor in Photoshop preferences.
Reset preferences.
Resetting preferences returns OpenGL settings to their default status. Reset Photoshop preferences by pressing and holding Shift+Ctrl+Alt (Windows) or Shift+Option+Command (Mac OS) immediately after you start Photoshop.
Click Yes when asked if you want to delete the Adobe Photoshop Settings File.
Retry the function that caused the problem.
Change the OpenGL mode to Basic.
Setting the OpenGL mode to Basic uses the least amount of GPU memory and the most basic GPU feature set.
Close all documents.
Choose Edit > Preferences (Windows) or Photoshop > Preferences (Mac OS)
In the Performance panel, click the GPU Settings Advanced Settings button.
Choose Mode > Basic
Restart Photoshop.
If this solution resolves the problem, switch to Normal mode. See if the issue recurs. If the issue recurs, return to Basic mode.
Note: If you’re changing GPU preferences to troubleshoot a problem, re-launch Photoshop after each change.
If you are using more than one video adapter, remove the additional cards.
Multiple video adapters can cause problems with GPU accelerated or enabled features in Photoshop. It's best to connect two (or more) monitors into one video adapter. If you have to use more than one video adapter, make sure that they are the same make and model. Otherwise, crashes and other problems can occur in Photoshop.
Note: Using two video adapters does not enhance Photoshop's performance.
Check your Cache Levels setting.
If you've set your Cache Levels to 1 in Photoshop preferences, you can experience performance issues with GPU features. Reset Cache Levels to the default setting, which is 4.
Choose Edit > Preferences > Performance (Windows) or Photoshop > Preferences (Mac OS)
In the Performance panel, choose Cache Levels > 4.
The GPU Sniffer
To help guard against Photoshop crashes related to bad GPU hardware or drivers, Photoshop employs a small program called the GPU Sniffer. Every time Photoshop is launched, Photoshop launches the sniffer. The sniffer runs rudimentary tests of the GPU and reports the results to Photoshop. If the sniffer crashes or reports a failure status to Photoshop, Photoshop will not use the GPU. The Use Graphics Hardware checkbox in the Performance panel of the Preferences will be unchecked and disabled.
The first time the sniffer fails, Photoshop will display a dialog indicating that it has detected a problem with the GPU. On subsequent launches the dialog will not appear unless the Photoshop preferences are reset.
If the user corrects the problem, either by replacing the video card or by updating the driver, then the sniffer will pass on the next launch and the Use Graphics Hardware checkbox will be enabled and returned to its previous state (enabled or disabled).
Tested video cards for Photoshop CS6
Adobe tested the following video cards before the release of Photoshop CS6. This document lists the video card by series. While the minimum amount of VRAM supported on video cards for Photoshop CS6 is 256MB, some features require 512MB of VRAM to be enabled.
Note: Adobe tested laptop and desktop versions of the following cards. Be sure to download the latest driver for your specific model. (Laptop and desktop versions have slightly different names.)
nVidia GeForce 8000, 9000, 100, 200, 300, 400, 500 series
nVidia Quadro 400, 600, 2000, 4000 (Mac & Win), CX, 5000, 6000
AMD/ATI Radeon 2000, 3000, 4000, 5000, 6000, 7000 series
AMD/ATI FirePro 3800, 4800, 5800, 7800, 8800, 9800, 3900, 4900, 5900, 7900
Intel Intel HD Graphics, Intel HD Graphics P3000, Intel HD Graphics P4000
Note: ATI X1000 series and nVidia 7000 series cards are no longer being tested and are not officially supported in CS6 – some basic GL functionality may be available for both these cards.
Note: 3Dand some Open GL features are disabled on Windows XP, as stated on : http://labs.adobe.com/technologies/photoshopcs6/

I've had several timeout since the pings were started. Got a some response times > 1ms (nothing greater than 7 or 8ms), but no timeouts.

8800 gt issue

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