gtx 880m thorttling in m18x r2?

ok im having a weird issue in my m18x r2 with a gtx 880m, it looks like its throttling but its not hitting anywhere NEAR max temps, it doesnt matter if i underclock it, leave it normally anything. i even flashed svl7s vbios onto it. it runs at full clocks, then it drops down to almost 400Mhz for awhile goes back up to full then it drops again. initially (yesterday) i got it to stop by turning off my overclock on the cpu. which is a 2920xm. at stock clocks now. but it returned today. needless to say this is annoying. ive attached a picture of what its doing. the picture is with the overclock on cpu still enabled but its the same thing.

 

It is known nvidia cards do not operate properly ever since late 2014 in Alienware computers. You can try the IGPU->PEG switch that the 980M people do to see if it helps.

 

what is that? i cant get my laptop to switch to iGPU with fn+f7

 

Manually switch with the unlocked BIOS in video settings from PEG to IGPU, load windows, then reboot into bios and go from IGPU to peg, reboot into windows, see if throttle persists.

 

is this bios available anywhere besides techinferno?

 

Swick and svl7 released through techinferno, and we've been asked not to mirror their work, so yes, only through techinferno

 

-_- great... i dont meet the requirements there for some reason either.

 

What is your vBIOS version? My 880M doesn't throttle.

Is it 80.04.F5.00.07?

Also @Raidriar is right, try M18xR2 throttle trick. As I never observed throttling in R1 it may be only R2 related same as with 980M

 

im not sure, i cant use nvflash for crap to check it.

its SVL7s vbios though.

 

I don't use it. I had newest stock vBIOS already on the cards.

 

well, i cleared bios on a hunch. and its behaving the way it should. im going to run some more tests. i suspect what may be happening is. when i unplug it from the wall and its on battery it goes in a power saving state and doesnt recover. also i dont have the intel drivers installed. (it wont switch to iGPU)

 

ok, it looks like the problem has subsided with my clearing cmos. hopefully it stays that way, btw how much of a difference does the 100w heatsink have compared to the 75w, now that its back to running normally. it hits 93C fairly fast. even with a really aggressive fan profile.

 

You absolutely need the 100W heatsink with a heat monster like the 880M. Undervolt and good quality paste is also important, as well as fresh pads.

 

i have none of that lol.

well i am undervolting and underclocking a bit to help with the heat, thats it.

 

Don't try to edit modified vBIOS if you want to undervolt it. Authors were dumbassess and did a most idiotic "security check" I ever saw so it will brick your cards if you change anything.

 

ive just been lowering it in msi after burner.

 

It's not idiotic when people are running around, stealing your work, and profiting from it.

 

OUCH, brick your card? that's cruel. bye bye $400 USD if not way more.

 

Easily recoverable. Remove MXM card, boot computer with unlocked vBIOS, set video to SG, re-install grpahics card, use DOS flash utility to reflash vbios. Done this for AMD and nVidia cards without issue.

 

ok, thats not as bad. i thought it was perma dead. that would be NOT cool.

 

If you flash both cards you have to resolder bios chip. Professional service cost a lot but I did it myself.