Originally Posted by tcclaviger
TL/DR: Will the Shamino 980_xx Strix BIOS series work on a Poseidon?!
I recently purchased an Asus Poseidon 980. At stock speeds I was pretty impressed, it lets me play most games maxed out on my Tempest 270 OC, usually holding at the 110hz refresh I use or better frame rate.
I started playing a few new titles that could run at full "ultra" settings, whatever the game had and found it could use a little more ass so I started OCing the card.
Long story short, found the modify204 software after trying to adjust things in the bios and realizing the board could give a flying f what you set the bios to, it generally does what it wants for voltage lol.
As it is now voltage modification turned out to be a total bust for my Poseidon ASIC: 73.5
Stable Boost Clock: 1490 mhz
Stable Memory Clock: 1878 mhz
HWiNFO64 Reported core voltage: 1176 vcore (Yes I know it's not totally accurate)
Highest TDP: 120.675
Temps: Before heat soaking GPU stays around 45c. If I run it for along time, more than an hour with very high load, like when playing farcry 4 etc the temps are absolute garbage and I am actually embarrassed to say they hit 60c at full load under water once the system heat soaks, takes about an hour of thermal load.
Loop issues: It is a Matx cube (Fractal Design Node 804) and I am running a very small loop that certainly needs more radiator (2 240 ST30s, 1 140 60mm thick all push only until tomorrow), and the fans are all GT AP 13s so, it's silent! The loop has CPU (3960x @ 4.7) R4G VRM block, RAM blocks, GTX 980 at the moment. More rads/fans/etc are arriving tomorrow from frozencpu
When done the build will be 4x 240 ST30s in push/pull with GT AP13s, MCP50X, EK DCP 4.0 and the extra three fan slots will be populated with Panaflo H1As as exhaust fans regulated down to 5.5volts to make them very quiet. Finally, I will add the aquaaero 5 LT and aquacomputer flow meter so I can set the flow at 1.1 GPM and not be concerned with it after that, as it is now, I keep it regulated to ramp up pump speed with CPU temperature, not optimal for GPU cooling in any way :/
If I try to increase voltage to get more overclocking room I quickly hit the TDP cap, which, after reviewing the stock bios for the Poseidon, is already elevated beyond reference by some degree. I can run with modify settings of 122500/100, which translates to 1.188 in HWiNFO64, and stay just under the 125% cap, actually logged peak as 123%, but even then I get no more OCing room out of the card. Doesn't matter if the temps are held in the 40c range or up at the 60c range, same clocks always have issues.
I can pass all benchmarks at 1516 mhz core with stock voltage, however there are artifacts present. Even at 1501 there are artifacts sadly. Does this mean my card is just stuck at a touch under 1500 regardless? If it doesn't indicate that, and you have had similar experience with your 980 please let me know, I will hard mod the Power Limit resistors so I can push the 1.3v I probably need to.
I have attached the poseidon bios for people to have/use/whatever, but I found that any alteration to the power table results in a "Problem with the device" error in windows and it fails to load the driver. The Common tables do effect the base clock and boost clock. The Voltage table does nothing.
Does anyone know if there is a Shamino bios for the Poseidon? I cant seem to get KPC forum to load, seems the page is down, tested on 3 different networks.
Considering selling this and getting a matrix and jumping the LN2 pads so I have the full control I expect from a ROG product
EVGA Kingpin because, well, because I can and it should clock like mad!
PoseidonBIOS.zip 137k .zip file