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Sapphire HD 5770 - Weird pixel appears

Last response: in Graphics & Displays
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April 24, 2010 1:30:13 PM






When surfing net with browser, it will appears most when scroll up/down, minimize and restore clear all weird pixels away.

It appears on almost activities, but gaming is work perfectly.



Yes, I got latest driver and it works fine days ago.

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April 24, 2010 1:48:27 PM
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What kind of monitor do you have and what is it connected with (VGA, DVI, HDMI)?
April 24, 2010 2:04:39 PM

Samsung SyncMaster 793MG, an CRT monitor, native resolution "1024 x 768".


I tried change to an old CPU with Radeon 9200, and same monitor. No such problem.
It works well days ago, I guess not the monitor problem, and I never touch display setting, just daily surfing & gaming.
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April 24, 2010 2:09:22 PM

What GPU do you have now? I'm wondering if this happens if you change the XP theme and would it occur again.
April 24, 2010 2:18:05 PM

Sapphire HD 5770.

Just tried to change the theme, still same.
April 24, 2010 2:22:55 PM

In my opinion a 5770 stuck on 1024x768 res is a waste, it's designed to perform well under something like 1680x1050. As for your problem how reformatting?
April 24, 2010 2:27:15 PM

Yes, I know what screen resolution best for my GPU.
I read review from tomshardware as well, great performance on "1920 x 1200".
I just want to research more before purchase my 1st LCD/LED :) 

I tried uninstall ATI driver then reboot, same problem exist. Guess format won't make a change? I would like to try other solutions before taking last option to format..
April 24, 2010 2:38:02 PM

If I was in your position I would say the same thing, it's just that a reformat gives you almost an error free factory new version of XP without any registry errors or anything else. I'm looking at your screenshot and and I'm wondering what'll happen if you up the res to like 1280x1024, otherwise a problem like the weird pixels is either because the OS is buggy or the GPU is faulty and needs to be replaced.
April 24, 2010 2:49:57 PM



No luck :cry: 
April 24, 2010 3:21:58 PM

Sure, I did this before. From retail disc.
April 24, 2010 3:50:03 PM

Hmm, if it's the same problem I would try to RMA the card but like you said you're trying to get a LCD which may or may not get rid of the problem.
April 25, 2010 8:28:47 AM

Pretty obvious hardware problem, I rma another one and the problem gone.
Hopefully it last long, thanks for you time mister g.
April 25, 2010 8:29:13 AM

Best answer selected by triplebug.
April 25, 2010 11:01:32 AM

If just browsing internet or doing similar things except gaming (2D mode only), increase idle clock speeds of the gfx card, i.e. core clock to 300MHz and memory clock to 400 MHz. If just gaming (3D mode only) decrease max clock speeds by 50 MHz and try.

Hope the above helps.
September 24, 2010 8:58:44 AM

I have just fixed this issue myself - if anyone finds this thread via google, these are the steps to fix it exactly.

Create a new profile in your catalyst control centre - save but do not activate it



browse to following location -



C:\Users\*USER*\AppData\Local\ATI\ACE\Profiles

right click on the profile and select edit

make sure the following values look like this


<Feature name="CoreClockTarget_0">
<Property name="Want_0" value="85000" />
<Property name="Want_1" value="85000" />
<Property name="Want_2" value="85000" />
</Feature>
<Feature name="MemoryClockTarget_0">
<Property name="Want_0" value="120000" />
<Property name="Want_1" value="120000" />
<Property name="Want_2" value="120000" />
</Feature>
<Feature name="CoreVoltageTarget_0">
<Property name="Want_0" value="1125" />
<Property name="Want_1" value="1125" />
<Property name="Want_2" value="1125" />




Activate your newly created profile and issue should be fixed.



Please note - due to limitations of the CCC software you may have to activate the profile multiple times for the changes to take effect. Also ensure overdrive is unlocked and enabled
November 16, 2010 11:33:41 PM

i've done this, the problem went away and then came back.. any other tips or is this card just gonna need to get RMA'd?
!