When Inap and RogueOP (at the "other forum") recently confirmed that a Dell 6970m is working in a M15x I decided to try the upgrade myself.
But as it's hard to get your hands on a Dell 6970m here in Switzerland (at least without having a M17x R3), I decided to get a 6970m from MXM-upgrade and try it myself.
Here's the card next to a 5850m and a GTX 260m:
As you see, the layout is pretty much the same and the heatsink from the M15x fits perfectly. (Of course this doesn't change the fact that the M15x isn't actually designed for such a high-powered card )
So the installation is pretty easy, no heatsink modding or similar needed to make it fit.
The unsolved issues so far are the following:
- The fans are running constantly, at a high, but not highest speed. Similar to the M17x R2 afaik. The fans also won't go automatically to full speed, even during under 100% load.
- I wasn't able to install the drivers first. I tried the regular from the AMD site, the M17x R3, the 11.4 preview... nothing. I succeeded when Fatal1ty39 suggested to try the driver of the P150HM racer, which worked.
-Audio through DP doesn't seem to work, even with the Dell drivers.
The heat is okay so far, I guess this can be optimized. The memory hit 90°C during a benchmark run, the core 85°C, both with a little overclock.
Anyway, the card hasn't been in the system for a long time, so there's definitely more testing needed. Also the power will probably become an issue as the 920xm already consumes quite a lot under load.
Here are some benchmark runs:
Stock GPU and 920xm with 24x multi across all cores:
With a little OC and stock 920xm.
Anyway, I'm still testing the card. What I need to add is that so far the support from MXM-upgrade has been very quick and helpful.
And a big thanks again to iloveb00bs and RogueOP for (quickly) testing it with a Dell card in the first place.
BTW... we need some more M15x users over here... the M17x users are a little bit in the majority Too bad the M15x seems to be a dying species. Shame on you, Dellienware.