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Hawaii Bios Editing ( 290 / 290X / 295X2 / 390 / 390X ) - Page 295

post #2941 of 3874
I'm trying to do my normal overclock I apply through afterburner with a BIOS mod as I'm tired of having to reset it every time I shutdown otherwise I blackscreen on log in but that's because of crimson drivers.

The thing I'm struggling with is getting the voltage increase to work. It seems like it's working but as soon as I up my memory clocks I blackscreen.

I normally run +44mv In after burner.

My stock VID's are

DPM0: GPUClock = 300 MHz, VID = 0.99300 V
DPM1: GPUClock = 483 MHz, VID = 1.20000 V
DPM2: GPUClock = 662 MHz, VID = 1.18700 V
DPM3: GPUClock = 841 MHz, VID = 1.18700 V
DPM4: GPUClock = 881 MHz, VID = 1.21200 V
DPM5: GPUClock = 914 MHz, VID = 1.25000 V
DPM6: GPUClock = 939 MHz, VID = 1.25000 V
DPM7: GPUClock = 947 MHz, VID = 1.25000 V

So in the Hawaii BIOS editor, In all 6 tables I have put

DPM0: 1037
DPM1: 1243
DPM2: 1231
DPM3: 1231
DPM4: 1256
DPM5: 1293
DPM6: 1293
DPM7:1293

I have only tried to apply the increase in voltage through BIOS and then raise the clocks in after burner to test, However its unstable compared to when I add +44mv through Afterburner. Using GPU-Z and aftburner my voltages at idle and load do seem to have increased by +44mv so what could be making it unstable compared to afterburner?
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post #2942 of 3874
Uh, why do you have DPM1 set to 1.243v? And I'll be darned if I know why it was set to 1.2v stock? That makes almost no sense.
post #2943 of 3874
No idea, It does seem odd I agree but its the same on both stock BIOS's.

Is there a way to see the different DPM states in ROMs without flashing them to the card?

EDIT*

I've just looked at the VIDS for a Gigabyte OC BIOS I have and that has a high DPM1 voltage to.
Edited by Finners - 7/3/16 at 3:43pm
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post #2944 of 3874
Both of my cards get edc errors at stock speeds. That's kinda bad. tongue.gif
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post #2945 of 3874
Quote:
Originally Posted by gupsterg View Post

Viewed the TPU hi res images of MSI 390X PCB and couldn't see a chip with U300 marked near it sadsmiley.gif.

does this mean it's going to be a lot harder to do than it should be?
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post #2946 of 3874
Thread Starter 
@subscribers.

How to edit PowerLimit section in OP has had redraft plus extra info added. For a while what I'd seen as A/W for VRM readings when compared with PL in a ROM had confused me, after confirming with The Stilt this is the answer which explains this occurrence:-

Note: PowerLimit relates to GPU not total board power usage. So you will see higher readings for A/W in HWiNFO for VRM than what you set in PowerLimit as other circuitry and "electrical elements" are not part of PowerLimit.

I have also added data I collated concerning hardware limits of 6/8 pin plug, I originally never added this but the PCI-E SIG information as wanted to play it "safe".

I hope these updates help smile.gif , soon gotta find time to do more "sprucing up" of OP wink.gif .
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post #2947 of 3874
Has anyone yet modded their memory timings for a 290X Matrix?
It uses elpida ram but I was unable to locate those exact timing straps from the first post.

I attached a copy of by card's BIOS before, help would be very appreciated thumb.gif
(I don't expect you to do the work but pointing me into the right direction would be nice)
Quote:
Originally Posted by erua View Post

I attached my bios file to this post
hawaii-1150.zip 97k .zip file
post #2948 of 3874
Quote:
Originally Posted by Finners View Post


I've just looked at the VIDS for a Gigabyte OC BIOS I have and that has a high DPM1 voltage to.

That's weird. All the 290 and 390 cards I have only list a static voltage for DPM0, DPM1 and up are numbers like 62582 which is . . . yeah. Anyway.

I only undervolt my cards, so take what I say with a grain of salt, but I usually start with a target voltage for DPM7 and then step each voltage down by .025v per DPM entry, or I'll use a different pattern to try to get a linear or near-linear progression down to the default DPM0 setting. For undervolting, it is tempting to set DPM0 lower than stock to reduce idle power usage, but if you're planning on keeping the card in use for long periods of time (which I do) then DPM0 is meaningless for most operation.

What I have found is that voltage offsets via programs like Afterburner and TRIXX do produce unexpected results compared to changing voltages in BIOS, and that these deltas can vary based on which voltage ranges are in play.

For example, if I lower DPM7 by .05v in the BIOS, I may see less reduction than if I set -50mV via TRIXX when starting at 1.150v, but then the two changes will be fairly similar if the starting voltage was 1.100v or lower.

Have you noticed any changes in measured peak voltage when changing DPM7 from 1250 to 1293? That's the real question. You may just need a higher DPM7 setting to reach your target.
post #2949 of 3874
If you change voltage in trixx or afterburner by -81mV (default offset in afterburner is +6mV) are all states P0-P7 effected or just P7?

I ask because I only undervolt if I mine, and then my PC or driver crash on state change if I use less then -50mV

Also I can not underclock (trixx, afterburner) if I set 700GPU/800 MEM it drop at once in 2D or 3D game, but as soon I start mining my Sapphire tri-x 290x (newer model) get to stock 1000/1250

I would start editing the bios if I could know stable voltages before, I only need lower voltage for top clock and that only with mining some power hog algo that use near 300W from card and heat one PCI-e 8pin plug! (the inner one) the other 8pin plug is cold and fine and there voltage drop is lot less then on the one that is heating (I melted one plug so far and default voltage/freq)
Edited by reb0rn - 7/5/16 at 7:30pm
post #2950 of 3874
@gupsterg Thank you for taking the time and replying to me.

From my understanding, the Gigabyte implementation is very similar to the stock one, the only difference being that the VRM supports more current before blowing up, the same number of phases though.

But what I want to ask you is, what exactly gives the boost of performance between 290x and 390x bios? This is not clearly explained anywhere.
In your previous post you mentioned Ram and Memory controller timings. That is all?

PT1T rom with 1150/1500 Gives 13750 score in Firestrike.
Insanity rom with 1100/1250 Gives 13500 score in Firestrike - what I'm using now
Insanity rom with 1150/1500 Gives 14400 score in Firestrike.
Insanity rom with 1150/1600 Gives 14700 score in Firestrike.

Currently my card doesn't want to do 1500Mhz on memory at idle if I don't apply +0.130v over Insanity rom(0.993v+0.0375v), or else it black screens.
Seeing that both Insanity and stock rom have the same 0.993v voltage at idle, if I apply the timings from the Insanity rom to the stock rom, won't I have the exact same issue with 1500Mhz memory if 0.130v isn't applied?
Also, does the additional voltage added using TriXX apply to VDDCI as well? In GPU-Z it doesn't look like it, but my card behaves differently when voltage is applied using TriXX than when voltage is applied using DPM steps.

Edit1: Maybe I can ask this more clearly:
0.993v + 0.0375v + 0.130v at idle = 1.160v = no black screen when memory OC of 1500 is applied.
But if I change DPM 0 to 1.125v in order to get rid of the additional voltage added using TriXX, I have:
1.125v + 0.0375v = 1.162v = black screen when memory OC of 1500 is applied.
What am I missing? Is there a difference between voltage added by TriXX and voltage added manually to DPM states?
Edited by madalin3 - 7/6/16 at 3:35am
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