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Tahiti LE voltage tweak

kovsol

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Video Card(s) PowerColor PCS+ HD7870 Myst. Edition 2GB - Tahiti Le
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Hi all!

I have a PowerColor PCS+ HD7870 Myst. Edition 2GB - Tahiti Le but i cant change the VDDC.
I tried with Trixx 4.4b, Asus GPU Tweak 2.2.9.9, PowerUp Tuner 0.2.1, MSI AB 2.3.0.
The card uses a CHiL CHL 8225 for voltage control. It offers monitoring and software voltage-control features and is well supported through overclocking software.

I found this review. They are using Trixx 4.6 but I can't find it.

Pls, help me find out how can i change the voltage. Default boost voltage is 1,256V.
My card running 1260/1725 @1,256V, but i want under voltage it, and find out how much voltage needed to 1100Mhz.

And if you have a solution how can i disable the boost then pls tell me. I tried 7950 non boost bioses, but not working.

Thanks!
 
Last edited:

W1zzard

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The new version of Trixx will support it, but it's not publicly released yet. Should be any day.
 

kovsol

New Member
Joined
Jan 16, 2013
Messages
2 (0.00/day)
Location
Székesfehérvár, Hungary
Processor i5-3570K@4500Mhz
Motherboard MSi Z77A-G45
Cooling H2O
Memory 2x4GB Kingston HyperX DDR3-1600@1866
Video Card(s) PowerColor PCS+ HD7870 Myst. Edition 2GB - Tahiti Le
Storage OCZ Vertex3 120GB SSD + WD Green WD20EZRX 2TB
Display(s) Samsung 32D5000
Power Supply FSP Aurum 400
Software Win 7 64bit
The new version of Trixx will support it, but it's not publicly released yet. Should be any day.

Thanks for fast response!

I hope i can undervoltage it because the card is very very warm. :mad:
If i set the lower voltage then this will be the default 3D voltage or the boost will overwrite it ?
If i cant overwrite the boost voltage then does not matter what i set.
 
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The new version of Trixx will support it, but it's not publicly released yet. Should be any day.

Any update on when this will be released?

Thanks for your hard work on this essential piece of software, by the way.
 
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I'm looking forward to the new TRIXX update. Thanks W1zzard! :cool:
 
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