Topic Title: HD7850 - Catalyst 13.1 WHQL Idle GPU memory still stuck at 1200 mhz / No ZeroCore Power
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Created On: 01/18/2013 12:23 PM
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 01/18/2013 12:23 PM
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plur
Peon

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Joined: 01/18/2013

Hi, first of all I apologize for my english, because it's not my native language.

The title of the thread says it almost everything.

The Gigabyte is the 7850 OC 2Gb version with core GPU overclocked from factory from 860 to 975 Mhz .

I've tried Catalyst v12.8, 12.10, 12.11 beta 6, 8 and 11, and since yesterday 13.1 WHQL, and in all of them the GPU core at idle lowers to 300 mhz but the memory clock get stucked in 1200 Mhz (should be 150 Mhz), so the VDDC doesn't lower from 0,90v and the temps at idle fluctuates between 40-42º c (where should be in order of 30º-35º c). The release notes of Catalyst 12.11 beta 6 says that this issue was especially resolved, but not for me.

I'm using as only output an analog LCD monitor connected through a DVI-VGA adapter, and I got an 32" LCD HDTV that connects via HDMI only when I need it (gaming, movies).

First I thought it was related to the settings of the BIOS of the GPU, but in AIDA64 shows the values of ATI PowerPlay (BIOS), I assume that it reads directly from GPU BIOS, and it shows:

State 1: GPU 860 Mem 1200 (Boot)

State 2: GPU 975 Mem 1200

State 3: GPU 860 Mem 1200 (UVD)

State 4: GPU 300 Mem 150

 

So it is clear that the driver doesn't allow the GPU memory clock to enter in the power state 4, .

Zerocore power isn't working (never worked really), so when the screen goes blank the GPU fans doesn't change its behavior and the temps doesn't decrease at all.

The BIOS version is 015.017.000.000.000861 (113-C4030400-100) dated 5/29/12.

The ambient temps indoors are here nearly 30º (summer) so the temps described before are a lot influenced by that .

 

Could someone give me any feedback for trying to resolve this issue?.

Thanks in advance.

 01/19/2013 01:53 AM
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Nogib
Peon

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Having the EXACT same problem!!!

 

Just installed Windows 8 and the 13.1 drivers.  Powercolor 7850 2GB stock clocks (860 core, 1200 memory), BIOS version 015.017.000.000.000861

 

Core drops to 300MHz on desktop but memory is always running at 1200MHz when it should be 150MHz in this state.  As a result my idle temps are a lot higher than they should be.  Don't have any issues gaming but this still strikes me as running improperly.

 

Is it a problem with this driver set or a problem with this 7850 BIOS revision?  Would love to hear if people other than this model are encountering this problem.

 01/19/2013 04:49 AM
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stumped
Wizard

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AMD issue reporting form > http://www.amdsurveys.com/se.ashx?s=5A1E27D20B2F3ECF



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 01/19/2013 04:44 PM
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Ataraxis
Peon

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I have the same issue with my XFX HD 7970 3GB DD Ghz Edition (1050 / 1500).

GPU clock drops to 500 Mhz when idle, but my memory clock always stays at 1500 Mhz.

My GPU temperature is pretty much always at exactly 40°C, which is about 5 to 10 degrees to high for this card if I'm not mistaken.

This has been the case on every driver I've ran so far, which is only the 12.10, 12.11 latest beta, and now the recently released 13.11 WHQL.

 

I had a Powercolor HD 5850 1GB before this one (about 2 weeks ago), which did not have this problem, and was running on 12.10 before I switched to this HD 7970.

 01/20/2013 04:15 AM
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OneGun
Peon

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Are you guys running duel monitors?Cause my 7850 use to drop down to 300mhz core and i think 450mhz mem but not sure on mem.But everysince i put a second monitor my mem stays at 1200 mhz.If i switch back to single monitor it drops back down.

 01/20/2013 08:51 PM
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Nogib
Peon

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Actually I am running two display devices!  Might have to check into that.

 01/21/2013 06:39 AM
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plur
Peon

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I'm running just one display, an analog LCD monitor through a DVI-VGA adapter.

 01/21/2013 08:11 PM
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Ataraxis
Peon

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Originally posted by: OneGun Are you guys running duel monitors?Cause my 7850 use to drop down to 300mhz core and i think 450mhz mem but not sure on mem.But everysince i put a second monitor my mem stays at 1200 mhz.If i switch back to single monitor it drops back down.

 

 

Yes I am, I'll check if unplugging my second monitor makes a difference.

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