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Software for R9 285 bios edit - Page 75

post #741 of 1079
@chris89 I certainly gain performance past 240w TDP, when I was benching 1280mhz I had the PowerLimit increased to 200%... Was not getting throttle issues, it would hold 1280, only dropping a bit between scenes. Min Max and Average FPS went up on the benchmarks I ran at 1120/1220/1280. Here is the difference between 1120 and 1280 on Heaven Xtreme Preset: (I only have handwritten evidence of the improvement from 1220 to 1280 currently)

http://hwbot.org/submission/3313017_

http://hwbot.org/submission/3336419_

I also run my AMD FX9370 @ 4.84ghz with 2678mhz HT/NB and 2200mhz RAM @ CL9-10-10-24 (stock ram is 2600 CL12-14-14 but AMD doesn't like to go above 2200 very much it seems)
post #742 of 1079
@M42BMW

As far as the CPU goes, you can get 5Ghz just need 2000Mhz Hypertransport : 2000Mhz Northbridge Ratio to get stable 5Ghz... For 2600Mhz ram we need to up the voltage on the Memory Controller integrated inside the CPU to upwards of 1.450v to hold 2600Mhz. I'd have to see a screenshot of your BIOS overclock/ voltage settings to know which one to set to hold the 2600Mhz on the memory.

I tested 1282Mhz and at 1450mv, it freezes before it gets into windows. At 1475mv, freeze well before windows. So it can't quite pull off 1450mv... Maybe 1445mv, but that doesn't mean it'll run stable. It would likely insta-crash.

Nice. I'll have to hook up my special modded power cable to suck down 240 to 275 watts. Though it gets real hot and iffy in this range.

Right now I'm loving my 4k performance at 1157mhz 1350mv core base and 1175mv offset and 225 watt tdp.

What we can do though is do what isn't possible with boost clocks that will all abide by the TDP limit

Clocks go as follows & I like to go for rounded Giga Pixel Numbers to voltage requirement to keep it solid with 1 billion pixel's per DPM hop... I don't see a point in 0.25 to 0.50 to 0.75 billion pixel's per DPM, no point.

1282mhz = 41 Giga Pixels (1.450 to 1.475v) might be possible
1250mhz = 40 Giga Pixels (1.450v) might be possible TDP way past 250 watts
1219mhz = 39 Giga Pixels (1.425v) may also be possible way up over 225 watts
1188mhz = 38 Giga Pixels (1.400v) most likely very possible TDP of 225 watts
Notice the increase in voltage requirement past 1157mhz...
1157mhz = 37 Giga Pixels (1.350v) very possible tdp of 225 watts
1125mhz = 36 Giga Pixels (1.325v) great and below 225 watts

Say we want a max clock of 1200Mhz+ we set dpm 7 to 1425mv which if held would utilize over 275 watts but thats not possible so it'll hold 1200mhz+ for 10-20 seconds then go down to DPM 6 at 1400mv at 1190mhz, then 1375mv in DPM 5 for 1175mhz then DPM 4 at 1157mhz at 1350mv (TDP limit of 225-250w) then DPM 3 at 1325mv for 1125mv (TDP of around 200 watts)...

That way the card will dictate highest performance via DPM according to TDP limit, make sense?

It takes more time to set specific values to replace DPM 3,4,5,6,7 but its not a big deal. That way you can see you max out at a value far higher than possible but spends more time at the possible clock levels that better abide by the TDP limit...

I'll make you a BIOS later today to reflect this concept. thumb.gif
Edited by chris89 - 10/11/16 at 11:04am
post #743 of 1079
@chris89 I've actually settled on 4.84ghz daily, I can run over 5ghz at my current HT/NB and RAM timings and do for some benchmarking. I settled at 4.84ghz because I can run there at the stock(turbo-4.7ghz) VID with some of the supporting voltages bumped to stabilize the ram at CL9 and the OC 'd HT/NB and get minimal real world performance gain above 4.84ghz outside of benchmark scores.

I am intrigued by this BiOs concept. When doing my own bios I try to use dpm 7,6,5 across the values #1/#2/#3/#4. My latest that seems pretty decent sets the dpm7 first value to 1.250(so trixx can bump my core to 1.45), second value 1304, third something like 1275, and fourth 1245. This was based off someone posting about value 1 being target/core VID, second value being max, third and forth value being middle/minimum for that specific dpm7.
post #744 of 1079
Nice. I'm testing the bios before I proceed with one for you.

So far it's been a couple minutes of fullscreen GPUZ rendering test at 1282Mhz... I found 1440mv is the max to get into windows... I also am running a 1265mv offset, because 1175mv offset would driver crash right away.

So we need more closer offset to base above 1400mv...

post #745 of 1079
Quote:
Originally Posted by chris89 View Post

@Mynm

Hmm I too had a memory module issue! It was plaguing my rig for some time... I ran Dell Diagnostic and sure enough 5 minutes in DIMM #1 had a correctable memory error as I have Error Correcting Memory. It didn't get solved so I reduced my ram from 48 GB to 24 GB... Plus I want to run 8GB Modules rather than a whole pile of 4GB Modules... x6 8GB Modules is ideal... Reduce power consumption on less higher capacity modules. Anyway that solved this problem I had where the whole rig would freeze for no reason randomly or blue screen with Memory Management as the cause or some other thing like Thread Stuck or some such.

How much memory do you have? What's your motherboard model/ cpu/ cooler used for cpu/ thermal paste used? If it's an AMD system I always find a more stable system with Hypertransport to Northbridge ratio of 1:1 of 2000Mhz:2000Mhz... Anything beyond 2000:2000 yields far less stability. Make sure the memory CAS latency is all as the module intended so look that up and make sure the BIOS is pushing 1.500v for ddr3 and ddr4 what 1.350v?!? into the memory modules as well. What's the speed of the modules? If you mis-match the CAS Latency and modules will have been reported to fail yet the CAS is just out of touch with the module as far as the BIOS settings go...

Cool I look forward to hearing more about your system specs etc...

You can see my system specs at the picture, the i5 is at 3.3ghz and up to 3.5 with turbo boost with1.1v, rams are at 1.55v, because with 1.5v I get errors with memtest. The kingston 1333mhz memories are 1600mhz 1.65v memories, but I had had they at 1.5v with 9 9 9 24 timings four years without problems. The crucial memories are 1600 1.5v they are the ones I'm using now. And I had had the four modules one yaer without problems untill I have tested it three months ago, but with 1.155v 9 9 9 24 timings I can pass nearly 10hs of memtes without erros.
Warning: Spoiler! (Click to show)

But maybe some module is failing. I had talk about this with one guy who have my same mobo and he had had problems with four modules and 1600mhz, but not with 1333mhz so maybe it's a mobo problem, he have the latest bios so flashing the mobo isn't solving the problem.
post #746 of 1079
@Mynm

Yeah? Hmm seems your running the ram at 1600mhz... You have 2x 1600 modules and 2x 1333 modules.

In that case you want to try and use the same timing on all modules as the 1333 would call for. Run them at the voltage the 1333 modules call for as well.

The Kingston modules call for PC3-10600, 1.5V

So I would set all 4 modules at 1.500v and 9 9 9 24 all others auto if possible.

Make sure the CPU memory controller is default, unless +10mv might help but auto should do.

I run 1333 modules myself in triple channel, it's almost 30GB/s.
Edited by chris89 - 10/11/16 at 1:13pm
post #747 of 1079
What's the max current you drew at 1280 m42bmw? How many Amps. What was your peak chris89? I'm eluding to the current limit which seems to be 170a but I'm not sure if it's by bios or hard wired. Buildzoid says it can be disabled here but it also wipes out monitoring http://cxzoid.blogspot.com/2015/11/r9-380-nitro-volt-mod-guide.html?m=1

Thanks mynm didn't know that was possible. I Might have to toy with that.
Edited by ducegt - 10/11/16 at 1:31pm
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post #748 of 1079
I'm have a hard time pulling off anything beyond 1235mhz and anything higher for 4k isn't happening for me...

Sure I could say its stable at 1080p, but I prefer 4k and 4k requires every bit of what this card has to offer. It does very well at 4k.

I guess when I first started testing the 380x, I had it up to like 1275mhz or some such. It was for OpenCL benchmarks and wouldn't hold any kind of 3d gaming.

My notes for 1275mhz was :

Sapphire Nitro R9 380X @ 1275MHZ @ +200mv @ Max 1.444 VOLTS @ Max 65C @ Card is very hot @ GPU Core Power 193 Watts Core load... Must of been using Trixx on stock bios... Core base of 1225mv, so +200 was 1425mv for 1275mhz OpenCL...

Amps wise was 140 amps by stock set in bios.

R9 380 vs 380x is 125 Ampere vs 140 Ampere... You could probably do 140 Ampere no problem, though it reflects the amperes capability for watts of 180 watts at 140 ampere. So higher watt tdp could call for say 225 watts and 175 ampere.

I just took the percentage of ampere to watt and it was 28% less... The R9 380 has 125 Ampere and 150 Watts, therefore 20%.

So when at 240 watts, it would be 188 ampere.


Edited by chris89 - 10/11/16 at 1:47pm
post #749 of 1079
Quote:
Originally Posted by ducegt View Post

What's the max current you drew at 1280 m42bmw? How many Amps. What was your peak chris89? I'm eluding to the current limit which seems to be 170a but I'm not sure if it's by bios or hard wired. Buildzoid says it can be disabled here but it also wipes out monitoring http://cxzoid.blogspot.com/2015/11/r9-380-nitro-volt-mod-guide.html?m=1

Thanks mynm didn't know that was possible. I Might have to toy with that.



@ducegt

Here is a HWMonitor cap from after benching the other day. I'm seeing a max 169A. I will be sure to keep an eye there, see if it ever breaks 170, or if this 170 limit is actually holding us back past a certain MHz in any way. Note that I do not run my ram at 1.3v when benching now that I've learned more lol

Edit: However I just read on that volt mod website he states RAM volts can go up quite high... Like 1.7v??

Edit2: have any of you read up on this site?

http://nerdralph.blogspot.com/2016/09/advanced-tonga-bios-editing.html?m=1

He tightens the timings, and potentially unlocks 1750mhz capability on 4GB 380 Elpida RAM?? That would be a boost. I do feel that we are going to catch our RAM bandwidth if the GP/s and GT/s numbers keep increasing like that have been.

Side Note:





Top is your 380 Nitro and then my Powercolor 380. We have very different VRM styles
Edited by m42BMW - 10/11/16 at 3:50pm
post #750 of 1079
I think I see why M42BMW can clock so high is that GPU VID 1.200v...

Most cards like mine have 1100 VID.

Maybe I'll try 1200, see what I find. I'm sure it'll help.

I actually had my VID at 1.000v haha

I'm on the old HWInfo that doesn't show that.
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