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Author Topic: How to under volt 7970  (Read 3250 times)
mpradeep
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February 06, 2013, 02:04:19 PM
 #1

I have OC Gigabyte 3 fan 2GB 7970 GFX card.

How do i under volt it. As of now i am running it at 1140MHz core clock and 685Mhz mem clock. How to reduce the core voltage to less than 1170mv??

I have tried in CG miner but it didnt work. I am a bit naive to this like some one to explain in detail on how to undervolt my card?

Thanks
Pradeep
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February 06, 2013, 02:21:24 PM
 #2

I have OC Gigabyte 3 fan 2GB 7970 GFX card.

How do i under volt it. As of now i am running it at 1140MHz core clock and 685Mhz mem clock. How to reduce the core voltage to less than 1170mv??

I have tried in CG miner but it didnt work. I am a bit naive to this like some one to explain in detail on how to undervolt my card?

Thanks
Pradeep

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crazyates
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February 06, 2013, 02:54:26 PM
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Ugh I hate Trixx. I (and a lot of other people on here) use MSI AB. Set unofficcial overclocking = 2, force constant voltage, and undervolt. That's what I do with my Gigabyte 7970.

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tacotime
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February 06, 2013, 04:42:34 PM
 #4

see thread in my sig, it unlocks voltage too

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
mpradeep
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February 06, 2013, 08:04:58 PM
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tacotime,

i cannot download the dll file says file doesnt exist
can you please reupload
scifimike12
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February 06, 2013, 09:58:27 PM
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tacotime,

i cannot download the dll file says file doesnt exist
can you please reupload

http://www.sendspace.com/file/un5iyx

(source)
Unacceptable
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February 06, 2013, 10:00:34 PM
 #7

Ugh I hate Trixx. I (and a lot of other people on here) use MSI AB. Set unofficcial overclocking = 2, force constant voltage, and undervolt. That's what I do with my Gigabyte 7970.

Just copy & paste this in your config:

[ATIADLHAL]
EnableUnofficialOverclocking   = 1
UnofficialOverclockingEULA   = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode   = 2
AccessibilityCheckingPeriod   = 0

This has the same effect.....I think  Wink

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February 07, 2013, 12:44:20 AM
 #8

First of all, when did you buy the card? Older gigabytes had the ability to change voltage, newer don't.  I have a few of both. Newer run on 1.170V, and could do 1150 smoothly, but you have the keep the room cool. And install GPU-Z to be sure Afterburner is not lieing to you Smiley. Always double check

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February 07, 2013, 02:29:45 AM
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hmm I tryed this and i did get my mem clock down to 685 but then closed and restarted, slider bar still down to min..then i upgraded my msi afterburner to lastest version...could lower mem clock down to 345 but on the readout is still says 685 Sad

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February 07, 2013, 02:32:46 AM
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First of all, when did you buy the card? Older gigabytes had the ability to change voltage, newer don't.  I have a few of both. Newer run on 1.170V, and could do 1150 smoothly, but you have the keep the room cool. And install GPU-Z to be sure Afterburner is not lieing to you Smiley. Always double check
I have an older one, the model that was factory OC'd to 1100MHz, but I could push it to 1200MHz no problem. However, that factory OC also came with a factory 1.25V, so undervolting makes a huge diff on my card. Mine didn't work until I set the "Force constant voltage" option.

I don't know about the newer cards, so you're prolly right.

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scifimike12
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February 07, 2013, 02:41:05 AM
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hmm I tryed this and i did get my mem clock down to 685 but then closed and restarted, slider bar still down to min..then i upgraded my msi afterburner to lastest version...could lower mem clock down to 345 but on the readout is still says 685 Sad

Try EnableUnofficialOverclocking = 2 instead of 1.
crashoveride54902
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February 08, 2013, 12:18:47 AM
 #12

hmm I tryed this and i did get my mem clock down to 685 but then closed and restarted, slider bar still down to min..then i upgraded my msi afterburner to lastest version...could lower mem clock down to 345 but on the readout is still says 685 Sad

Try EnableUnofficialOverclocking = 2 instead of 1.

tryed that and now my slider won't go below 685 now Sad

Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks Sad
crazyates
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February 08, 2013, 01:43:58 AM
 #13

hmm I tryed this and i did get my mem clock down to 685 but then closed and restarted, slider bar still down to min..then i upgraded my msi afterburner to lastest version...could lower mem clock down to 345 but on the readout is still says 685 Sad
Try EnableUnofficialOverclocking = 2 instead of 1.
tryed that and now my slider won't go below 685 now Sad
Go into the MSI AB folder, and delete the files in the "Profiles" folder.

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crashoveride54902
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February 08, 2013, 02:26:44 AM
 #14

hmm I tryed this and i did get my mem clock down to 685 but then closed and restarted, slider bar still down to min..then i upgraded my msi afterburner to lastest version...could lower mem clock down to 345 but on the readout is still says 685 Sad
Try EnableUnofficialOverclocking = 2 instead of 1.
tryed that and now my slider won't go below 685 now Sad
Go into the MSI AB folder, and delete the files in the "Profiles" folder.

ahh ty much it worked

Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks Sad
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