GPU upgrade with gtx675m or 7970m in MSI GT680 (few questions)

thanks for the help likezero

 

Hi Guys

The eBay seller "mokkin" has two GTX770M cards:

A Blue one--> New Nvidia GeForce GTX 770M 3GB DDR5 MXM 3.0 Type B for Clevo Alienware MSI | eBay

A Green one--> Nvidia GeForce GTX 770M 3GB DDR5 MXM 3.0 Type B for MSI Alienware | eBay

According to this thread post #69, The green one may not work, which is what likezero posted earlier --> MS-16F2 w/GTX770m Need vBios Please Help! - Page 7

Which one did you order likezero, the blue or green?

Many Thanks

 

i get a green card, pulled from a MSI GT70 2OC. Mokkin write also "pulled from a brand MSI Laptop"

 

Just an update, got the gtx 770m from a local seller. it was pulled from a MSI GT60 ONC



also ordered this heatsink

wish me luck!

 

Hopefully the new style heatsinks will fit the 770M as I don't believe the 770M natively fitting heatsink ever had a bridge, looking at it though it hopefully should.

 

I hope this heatsink works as well, it seems to match up based on the points of contact. For those who have successfully done this, did you have to upgrade your motherboard BIOS?

Appreciate your help so far

 

770m and heatsink side by side


Matching them up, it fits quite good. But not perfect

 

Wow this was easy, installed the card and gpuz recognised it right away. Windows found the drivers, rebooted and it there it was fully installed. no vbios flash, no modified drivers, nothing.
Also upgraded my cpu to a core i7-2720qm
Here are some pics of install. Thanks guys
Arctic silver 5

adding thermal pads

adding grease to heatsink bridge, where it meets the cpu heatsink

thermal grease on new cpu

windows install on boot for both



ran 3dmark11 with a score of P5204, max temp on gpu 70c, cpu 72c

 

After playing around in BF4, i am noticing alot of cpu throttling. My frames would drop drastically and i can see my cpu dropping to 800mhz and back to 3000mhz. I have tried flashing my motherboard bios to xonar's unlocked version and disabling speedstep, and have tried running throttle stop but its not helping. Anyone have any ideas?

Using 150w power brick
cpu core i7-2720qm


Thanks

 

You need to run an on screen display or OSD while in game and display parameters such as GPU frequencies and temps. This will provide real time I formation about hoe your system is performing. This should at least help isolate whether this is a thermal or power issue.

Also please tell me you put thermal pads on the silver voltage things on the GPU. Those should 100% have thermal pads as they can get very hot!

 

Hi Talon

I had BF4 running in window mode while keeping an eye on cpuz and gpuz. Temps for both didnt exceed 75c. Gpu was running at full speed but cpu kept fluctuating. Frame rate would drop immediately when cpu dropped to 800mhz. I also noticed that cpu doesn't fluctuate when running cpu stress tests like prime95, only when both cpu and gpu are working simultaneously.

Thanks for the info about the thermal pads, I have not applied to those silver parts. I guess I will have to do that soon, although I don't think the gpu is the problem

 

My guess is that it could be that 150w power adapter as you mention it only happens when both CPU and GPU are loaded together. I would recommend getting your hands on a 180w adapter.

 

I have found the problem, i didnt uncheck EIST (Enhanced Intel SpeedStep) in throttlestop. Even though it was disabled on bios (unlocked bios). Another forum member also told me to uncheck BD PROCHOT which disables the thermal throttling. I will continue to keep it checked as my temps are now reaching higher due to cores runnning at max 3.3ghz for my cpu

EDIT: looks like BD PROCHOT has to be unchecked at all times, cpu would throttle even at relatively low temps of 50 - 60c

 

You are awesome mate! Very good summary for other gt680 users!