mrm2x

it would be VERY interesting to know if that what Robbo just wrote is indeed a possibility. cause from the looks of it, its the exact same problem i am running into with my 880M which, even at stock clocks, can´t run stable without throttle (although temps are more than fine).

just another update: unfortunatly, after a few system restarts, i ran into the same problem as before. throttle and unstable core-clocks + video-driver crashes. i have given up at this point and will wait for the next driver-release, maybe it will fix some of these problems.

quoting myself here for reference. as a last resort i tried to install the 337.50 beta video-driver (the one before the 337.88). so far it looks good. stable clocks (993mhz) and 84°C max. temp at watchdogs / firestrike. lets hope it really has been a driver glitch and future version wont have this problem, whatever it was.

i have a AW M17xR4 with a 240W psu. tried both +25 and 37mv, still the exact same behaviour as described above. throttle + driver-crash as soon as i try to cancel it or the next test is beeing loaded. edit: also tried to run furmark today. results are: core-clock won´t go higher than 614mhz and still throttles between this and 234mhz.

unfortunatly as of today i had to revert to the original vBios for my 880M. no game/benchmark i tried (dota2 / watchdogs / 3Dmark11 / 3Dmark13) ran for more than a few seconds without either constant throttling (read: erratic switching between 993/836/614mhz core) or a complete video-driver crash. however i did not try to use an older v-driver (327.xx is what has been suggested i believe) since i don´t see a reason using an old driver just so the standard clocks keep stable. using v337.88 + original vbios at least i was able to play games with (although it still throttles the core some times). kinda sad right now, coming from an 680M with a modifed vbios, i really hoped for more. but i guess nivdia fuc*ed it up this time around -.- sidenote: i tried to edit my forum-signature but somehow it doesn´t show. working as intended?!

Tried to run 3DMark Firestrike today. System-Specs as follows: M17xR4 i7-3720QM GTX880M 240W PSU im using the modified vBios + stock clocks (993mhz core, 2500mhz ram), video-driver v337.88 (latest) no change in any setting whatsoever as soon as i start the benchmark (about 5s) the card starts to throttle for 2-3sec, than goes back to normal for about 10-15sec, starts to throttle for 2-3sec and so on... its basically the same behaviour as with the standard-bios, except the throttle-time is a bit shorter (id say up to 6-8sec with standard-bios). max temperature according to nvidainspector is 71°C during firestrikes tests, the video-driver crashed and restartet itself about 2-3 times (basicially after each test except physics ofc) question is obvious: what could be the problem here? video-driver, not enough power, problem with the vbios? any help is much appreciated

so i applied the new 880M vbios today on my M17xR4 + reinstalled the video-driver (337.88). so far so good, but i observed some strange behaviour when trying to downclock the core. - standard gpu-clock is @993mhz - i use nvidiainspector to change the clocks - anything between 614mhz and 849mhz wont be recognized. - i can choose rates between these two values, and nvispector shows them under "gpu clock", but "current clock" stays an either 614mhz or 849mhz (for example, i tried to apply a 793mhz clock, down from 993mhz. so i choose "-200 base clock offset". "gpu clock" correctly shows the new value of 793mhz, but "current clock" immediatly goes to 614mhz until i change the "base clock offset"-value to -400 or more). any tips what might cause this behaviour?!

has anyone in here already tried to flash the 880M-bios on an alienware-system and can confirm deadsmiley´s oberservation regarding the oc-potential ?

soo, there they are thanks again to svl7 and whoever else that made this custom vbios possible. as soon as im home i will test the 880M-bios on my m17xR4 and hopefully unlock its full potential

hello again^^ i have a few questions about the modified nvidia 780M-bios (i´m sure they all have been answered, but forgive me that i did not read all 88 pages cO) - its basically the same as the modified 680M-bios, feature-wise? (i´m using a 680M in my m17xr4 atm) - its based on an original dell/alienware 780M-bios? (does it even matter?!) - got my hands on a 780M which im about to replace my 680M with. i remember back in the day the 680M got some issues with throttle/turbo-boost at certain points. i assume those things are gone with the 780M? (or at least with the modified bios?) thanks in advance for any helpful answers

i don´t think so. running 3dmark11 at high ambient-temp (26°) will result in 64-66° max core temp at stock clocks...

i got the same on my 680M, althought voltage/temperature is everything but critical. kinda sad since this card has massive potential...

so, i finally decided to join this conversation^^ @widezu69: when you talk about throttling you mean erratic changes of the gpu core-clock while running furmark/3dmark11 etc. ?