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7950 Vapor X Voltage Locked? - Page 27

post #261 of 1056
Thanks man, i just did this and it looks better now.
min fps on Heaven default settings.
Card non oc'ed
Power limit 0% - 39.1fps
Power limit 20% - 46.6 fps
Checked 10 times... Just click run and at first seconds i get min fps.
I don't understand why differents but ok. Looks like throttling on default clocks without Power Board Limit corrected to +20%
Edited by adamlop - 10/25/12 at 1:21pm
post #262 of 1056
Quote:
Originally Posted by Wnivre View Post

Go into your BIOS and see if you can disable the iGPU, disabling the Virtu feature.
I've been having the same Afterburner locked voltage issue for many days too until I disabled multi iGPU support from BIOS; that somehow enabled the voltage slider.

Thanks!!!


Voltage is unlocked on this version

I had to disable my iGPU for it to work.... biggrin.gifthumb.gifwheee.gif



Full Image

http://postimage.org/image/cxgt1jhmr/full/
post #263 of 1056
Quote:
Originally Posted by adamlop View Post

Just for clearity - my 7950 vapor-x disassembled
...pictures removed...

Awesome. Did you try tinkering with the VRM heatsink? For example, is it loose? Could it use some thermal pads? Would a small fan fit on it? Etc.

Might it be possible to connect the VRM heatsink and primary heatsink with some thermal pads? Is the heatsink as large as can possibly fit, or is there room for a larger one?

Thanks!




This is the kind of thing I'm looking at doing..



But I'm probably just gonna find what size heatsink can fit inside and use something like this


Edited by Derpinheimer - 10/25/12 at 8:04pm
post #264 of 1056
Quote:
Originally Posted by adamlop View Post

Thanks man, i just did this and it looks better now.
min fps on Heaven default settings.
Card non oc'ed
Power limit 0% - 39.1fps
Power limit 20% - 46.6 fps
Checked 10 times... Just click run and at first seconds i get min fps.
I don't understand why differents but ok. Looks like throttling on default clocks without Power Board Limit corrected to +20%

Good to know thumb.gif
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @4.7ghz(1.39v) 24/7 +D14 Asus P8Z77-V Sapphire R9 290 Tri X @1160/1600 8GB HyperX @2133 
Hard DriveOptical DriveCoolingOS
WD Blue EZEX 1TB & Samsung 840 Pro 256GB (OS) Asus Nocuta NH D14 WIN 7 64 Ultimate 
MonitorKeyboardPowerCase
NEC 2490wuxi (rev 1) Logitech Wave Cooler Master Vanguard 850W Cooler Master HAF 932 
MouseMouse PadAudio
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K @4.7ghz(1.39v) 24/7 +D14 Asus P8Z77-V Sapphire R9 290 Tri X @1160/1600 8GB HyperX @2133 
Hard DriveOptical DriveCoolingOS
WD Blue EZEX 1TB & Samsung 840 Pro 256GB (OS) Asus Nocuta NH D14 WIN 7 64 Ultimate 
MonitorKeyboardPowerCase
NEC 2490wuxi (rev 1) Logitech Wave Cooler Master Vanguard 850W Cooler Master HAF 932 
MouseMouse PadAudio
Logitech G5 Cooler Master Xonar STX+ HD595 
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post #265 of 1056
So, it's not connected propely, but maybe 1mm thermal pad ? I think it have some kind of glue
Two screens from another sides, but you should find a right way ;D

post #266 of 1056
Awesome, hopefully its a simple fix!

Also, there arent actually 2 VRMs, right? Just 2 sensors? I ask because I cant see 2 of anything ... and the VRMs are the little square things, or the smaller rectangular things?
post #267 of 1056
Exactly i dont know. Asked in mainly hd79xx topic, and answer was: "The parts circled are not vrms or anything that needs direct cooling."
So looks like i can't fix this
post #268 of 1056
I just cant see 1VRM sitting at 60c with high OC and voltage and the other being incapable of doing so without overheating on the same heatsink making sense..

I might just try shoving some thin thermal pads from my old graphics card on that area and see if anything improves.




EDIT: Okay, according to a thread I dug up, the area with the long aluminum heatsink is where the VRMs are:
http://www.kitguru.net/wp-content/uploads/2012/02/ACC_9399_DxO.jpg

Which would be the square things. You said yours had some sort of pad I think. Mine does too. Just hoping this can be fixed. This graphics card works up to 1250/1800 easily, except for the VRM temps causing it to throttle :'[
Edited by Derpinheimer - 10/26/12 at 9:27am
post #269 of 1056
1250/1800 looks great on air.
I think we have this version with Tahiti PRO2 and hd7970 Vapor-X PCB
Maybe any chances to flash with Tahiti XT2 7970 vapor-x bios...
post #270 of 1056
Quote:
Originally Posted by SnakeRule View Post

Trixx just isn't doing it for me.
Voltage adjustment only works when board power limit is at zero.
When the board power limit is at zero, the core and memory clocks simply won't go over stock when gaming. Anyone got this working properly?

I think old bios V03/V04, i found something on sapphire forum.
http://www.sapphireforum.com/showthread.php?29996-Vapor-X-7950-OC-Boost-No-Boost-nor-Overclocking
My card for example stay on 850mhz until i change powerboard limit to +20%, then boost working and get me 950mhz som stay on the box of my card. But should work on standard settings i think!

Now im pretty sure that i have 7970pcb on my 7950 vapor-x
http://www.overclockersclub.com/reviews/sapphire_7950_vaporx/2.htm
http://www.overclockersclub.com/reviews/sapphire_hd7970_vaporx_ghz/2.htm
Edited by adamlop - 10/26/12 at 3:00pm
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