Screen flickering

chrismelling · 13 Jul 2010 at 17:07

Recently re-installed windows 7, before I re-installed windows 7 my computer ran fine and the monitors never flickers or went crazy.

Now my monitors flicker when the other one is refreshing a webpage or something is loading. For example if the right monitor is refreshing then the left monitor will kinda flicker and go crazy and it does the same if its the left monitor refreshing.

Im running a 4850 with 2 dell st2410's with the most recent drivers installed.

chrismelling · 20 Jul 2010 at 17:19

Anyone?

BigBruiserAl · 20 Jul 2010 at 17:41

Ati driver issuie un plug one of the mointors it should not happen that will also rule it out if not

chrismelling · 20 Jul 2010 at 19:41

BigBruiserAl said:
Ati driver issuie un plug one of the mointors it should not happen that will also rule it out if not

It only happens when I run 2 monitors as I have tested it. Disconnecting 1 monitor may fix the problem but its not something I want to do.

IKMS · 20 Jul 2010 at 19:56

Roll back drivers, tried that?

NAM_killer · 20 Jul 2010 at 20:21

IKMS said:
Roll back drivers, tried that?

+1

DIABLO · 20 Jul 2010 at 21:13

The flickering happens when the RAM on the card changes speed which it does a lot more with the newest drivers as they addeds support for flash video hardware decoding and any type of video recording the card sets the RAM to 900Mhz and the GPU to 400MHz (so don't have a flash video site open when you're playing games guys). I got around it by editing the bios on my card to lock the RAM to run at full speed all the time.

Danny_75 · 20 Jul 2010 at 23:02

You need to edit the profile its flickering when the card jumps from idle.

You need to create a new profile.
Options
Profiles
Profile manager
then this

give it a name
Dont activate just save!
Go to computer>local disk(C

User>Yourname>Appdata>local>ati>ACE
In there you will find the PROFILES dir
open that in there you will find the thing you made, Open with note pad.

Once you have it open edit and save. You want to stop it jumping so set all the same ie your normal clock speeds.
So i would use:
<Feature name="CoreClockTarget_0">
<Property name="Want_0" value="90000" />
<Property name="Want_1" value="90000" />
<Property name="Want_2" value="90000" />

Once you have done this save and close and go back to CAT and then Options>Profiles>activate pick the name you did before and that should fix it.

chrismelling · 22 Jul 2010 at 02:26

Thanks the guide Danny_75 but I cannot find where the file is located, there is no folder called Appdata anywhere on my computer.

Edit: found the folder location it was in a different place then you first said but when I open up the profiles file it looks nothing like yours, mine just has.

<Profile>
<Caste name="Graphics">
<Groups />
<Adapter name="PCI_VEN_1002&DEV_68B8&SUBSYS_29901682&REV_00_4&27574D66&0&0008A" />
<Adapter name="PCI_VEN_1002&DEV_68B8&SUBSYS_29901682&REV_00_4&27574D66&0&0008&02A" />
</Caste>
</Profile>

arc@css · 22 Jul 2010 at 03:08

^^My computer, C:, Program files X86, ATI Technologies, Application Profiles...then open with notepad.

Might be even easier just try opening with notepad to start with, then select 'File', 'Open' and then allow 'All Files' and then applications profiles should appear. Double click on it and you can then change the clock values.

chrismelling · 22 Jul 2010 at 04:07

arc@css said:
^^My computer, C:, Program files X86, ATI Technologies, Application Profiles...then open with notepad.

Might be even easier just try opening with notepad to start with, then select 'File', 'Open' and then allow 'All Files' and then applications profiles should appear. Double click on it and you can then change the clock values.

I don't have an Application Profile folder, the only thing I have in ATI Technologies is ATL.ACE.

Danny_75 · 22 Jul 2010 at 09:01

You will have to go to folder options then show hidden files

chrismelling · 22 Jul 2010 at 14:19

Right, did as you said and changed the values in my profile but now every time I load anything with flash the graphics drivers crash and my monitors turn off.

That's that my profile page looks like,

DIABLO · 22 Jul 2010 at 14:32

Thats exactly what happens when i tried the same thing, it's because the GPU has to run at 400Mhz to do the hardware decoding so you forcing it to run at 900Mhz is causing it to crash. Leave the GPU clocks as it was originally just lock down the memory clocks as it's the memory changing speed which is causing the flickering.

chrismelling · 22 Jul 2010 at 17:15

DIABLO said:
Thats exactly what happens when i tried the same thing, it's because the GPU has to run at 400Mhz to do the hardware decoding so you forcing it to run at 900Mhz is causing it to crash. Leave the GPU clocks as it was originally just lock down the memory clocks as it's the memory changing speed which is causing the flickering.

How do would I about locking down the memory clocks?

DIABLO · 22 Jul 2010 at 18:38

chrismelling · 22 Jul 2010 at 20:12

The MemoryClockTarget numbers are all 120000 at default

Danny_75 · 22 Jul 2010 at 21:55

This is what i use 24/7 with no problems
<Profile>
<Caste name="Graphics">
<Groups>
<Group name="Overdrive5">
<Feature name="TimeUnlocked" />
<Feature name="OverclockEnabled">
<Property name="OverclockEnabledProperty" value="False" />
</Feature>
<Feature name="AutoTuneSupport" />
<Feature name="CoreClockTarget_1">
<Property name="Want_0" value="40000" />
<Property name="Want_1" value="60000" />
<Property name="Want_2" value="96000" />
</Feature>
<Feature name="MemoryClockTarget_1">
<Property name="Want_0" value="125000" />
<Property name="Want_1" value="125000" />
<Property name="Want_2" value="125000" />

chrismelling · 23 Jul 2010 at 01:37

Danny_75 said:
This is what i use 24/7 with no problems
<Profile>
<Caste name="Graphics">
<Groups>
<Group name="Overdrive5">
<Feature name="TimeUnlocked" />
<Feature name="OverclockEnabled">
<Property name="OverclockEnabledProperty" value="False" />
</Feature>
<Feature name="AutoTuneSupport" />
<Feature name="CoreClockTarget_1">
<Property name="Want_0" value="40000" />
<Property name="Want_1" value="60000" />
<Property name="Want_2" value="96000" />
</Feature>
<Feature name="MemoryClockTarget_1">
<Property name="Want_0" value="125000" />
<Property name="Want_1" value="125000" />
<Property name="Want_2" value="125000" />

Didn't fix it.

Danny_75 · 23 Jul 2010 at 08:27

Dont use the same settings, Thats for a water cooled 5970. Try

<Profile>
<Caste name="Graphics">
<Groups>
<Group name="Overdrive5">
<Feature name="TimeUnlocked" />
<Feature name="OverclockEnabled">
<Property name="OverclockEnabledProperty" value="False" />
</Feature>
<Feature name="AutoTuneSupport" />
<Feature name="CoreClockTarget_1">
<Property name="Want_0" value="40000" />
<Property name="Want_1" value="60000" />
<Property name="Want_2" value="90000" />
</Feature>
<Feature name="MemoryClockTarget_1">
<Property name="Want_0" value="120000" />
<Property name="Want_1" value="120000" />
<Property name="Want_2" value="120000" />