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New Bios update for gigabyte HD7950 ! - Page 96

post #951 of 1324
Quote:
Originally Posted by xtreemeNoob View Post

so except me everyone's mod is working one way or the other nice to see thumb.gif

If you are not getting more than 75c under full load with ambient temp around 30c then you should really be satisfied with that. Or as i said before you could always try reapplying the thermal paste on the core and see how it goes.
post #952 of 1324
Also I am asking how you change voltages (procedure) because as my card is not v2, I cannot test to reproduce xtremenoob's issues.
It makes me wonder if different drivers are changing controls. maybe a reinstall of the drivers will help him diagnose the issue

also no idea why fx0 is faster...all i know is that valley is crap... with 4.5ghz i5, even extreme shows around 70% gpu load...and vsync is off...
so my min fps is great but i dont get max fps like others (108 vs 180 for example).
max fps is a crap measure of performance, min fps matters more...
post #953 of 1324
Quote:
Originally Posted by robnitro View Post

No there is no max min.
In boost there is high (1.25)
and state 2 900mhz voltage (1.09?)
there is also uvd 0.95v
and 2d 0.85v
also other values that catalyst ignores
try catalyst 12.4, 2d uses 0.95v!

annoying in the inconsistency of bios to drivers

vdroop is just a byproduct of load...

I know about the relation but the throttling has stored fixed values so does vdroop based on the card's ASIC.
What i'm really intrigued, why does it say that it uses only 2 voltage values. For that purpose, there is a possibility of setting the low 0,95v to let's say 0,85 under minimum clocks of 300/150!?
post #954 of 1324
Quote:
Originally Posted by robnitro View Post

Also I am asking how you change voltages (procedure) because as my card is not v2, I cannot test to reproduce xtremenoob's issues.
It makes me wonder if different drivers are changing controls. maybe a reinstall of the drivers will help him diagnose the issue

also no idea why fx0 is faster...all i know is that valley is crap... with 4.5ghz i5, even extreme shows around 70% gpu load...and vsync is off...
so my min fps is great but i dont get max fps like others (108 vs 180 for example).
max fps is a crap measure of performance, min fps matters more...

If he is using windows 8 then that could be the issue. His bios didn't come with the boost feature, perhaps his card throttles much less, but that doesn't explain lower temperatures on stock bios. I too have that valley problem same as you, min fps goes really high but i don't get as much max fps as everybody else.
Edited by EnErgy667 - 6/13/13 at 6:20am
post #955 of 1324
Quote:
Originally Posted by robnitro View Post

Also I am asking how you change voltages (procedure) because as my card is not v2, I cannot test to reproduce xtremenoob's issues.
Is the question how i changed the voltage values in the bios?
post #956 of 1324
Quote:
Originally Posted by robnitro View Post

No there is no max min.
In boost there is high (1.25)
and state 2 900mhz voltage (1.09?)
there is also uvd 0.95v
and 2d 0.85v
also other values that catalyst ignores
try catalyst 12.4, 2d uses 0.95v!

annoying in the inconsistency of bios to drivers

vdroop is just a byproduct of load...

for gigabyte 7950 rev 2 it's 0.95v 2d/desktop/single monitor regardless of catalyst version
MY_Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4670K Gigabyte z87x-UD3H Gigabyte HD 7950 WF3 Samsung 30nm  
Hard DriveHard DriveCoolingOS
WD 1TB Blue plextor m6 pro  Coolermaster Hyper 212 EVO Windows 8.1 pro 64bit 
MonitorPowerCaseMouse
Samsung BX2035 Seasonic x650 KM3 Coolermaster mastercase pro 5 Logitech MX 518 
Mouse PadAudio
Razer Goliathus Speed Creative Sound Blaster Z 
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MY_Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4670K Gigabyte z87x-UD3H Gigabyte HD 7950 WF3 Samsung 30nm  
Hard DriveHard DriveCoolingOS
WD 1TB Blue plextor m6 pro  Coolermaster Hyper 212 EVO Windows 8.1 pro 64bit 
MonitorPowerCaseMouse
Samsung BX2035 Seasonic x650 KM3 Coolermaster mastercase pro 5 Logitech MX 518 
Mouse PadAudio
Razer Goliathus Speed Creative Sound Blaster Z 
  hide details  
Reply
post #957 of 1324
Im asking what procedure is used with trixx to unlock voltage using our bioses.

That asic table is simple, theres 2 sets, one for boost, one for 900mhz state. Only one value is used, by asic. We fooled it by changnig asic values to pick a lower voltage which somehow unlocks trixx control.

throttling is unrelated to that table. lets say you run 1100@1.2v...if it throttles down it still uses 1.2v requested...just actual voltage changes(vdroop) because load is less...so less voltage drop across the mosfets+circuits.

i didnt know that v2 used 0.95v for 2d... weird because even w boost bios I get 0.85v.

I dont know how to change that... Ive adjusted the voltage (52 03-850mv to (20 03-800mv) listed after 2d clock in table but it doesnt change. and 12.4 even ignores that and uses 0.95!
post #958 of 1324
Can you explain this. Only two performance states and only two actual voltage values.

post #959 of 1324
Quote:
Originally Posted by robnitro View Post

Im asking what procedure is used with trixx to unlock voltage using our bioses.

That asic table is simple, theres 2 sets, one for boost, one for 900mhz state. Only one value is used, by asic. We fooled it by changnig asic values to pick a lower voltage which somehow unlocks trixx control.
I think the answer is rather simple. Trixx allows voltage change by taking info from the ASIC table, if the ASIC quality for the given card is not within the range supplied, then it won't allow for voltage change, but as you said we tricked the bios by supplying a wider range in the table thus allowing for the voltage change in the given range. It still has some limits, ex. for my card is 0,850v-1,250v. Perhaps some one can go beyond 1,250v.
Edited by EnErgy667 - 6/13/13 at 7:43am
post #960 of 1324
Those states you list dont mention 900mhz and 500mhz ones, weird. Search for 90000 or 125000 in reverse hex and youll find the clock table.

So when you use trixx, is it just change and hit apply, or do you have to set "force voltage" first?
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