Qosmio X870 shutting down without reason - low perfs

Question

Hello everyone,
I have recently bought a Qosmio X870 116 and I am extremely disappointed. It is supposed to be a gaming computer but I can barely run a single game without the PC crashes. I tried to run recent games such as Diablo 3 and Guild Wars 2. During the downloading of the GW2 launcher, the PC crashed after a while, shutting down without any reason.
I eventually managed to install the game on my laptop anyway but I still encounter some issues since as I play, after not more than two minutes, the game slows down, the frame per second rate drops dramatically to 2 fps and the laptop crashes again.
I think there is a problem with the graphic card or the fan because eveytime I try to launch a game, the fan starts to run very fast and noisely.
I thought it also may be a problem with the Nvidia technology because of their Optimus service on their recent graphic cards, therefore I tried to "prioritize" the use of my NVIDIA GeForce GTX 670M instead of the chipset Intel HD Family 4000 used in the laptop, by right-clicking on the GW2 icon and opening the NVIDIA panel to select the "Nvidia High performances" option.
Unfortunately, the game still crashes after a few minutes. I obviously updated the drivers for the Nvidia but still, it doesnt work.
Moreover, the laptop seems pretty slow to me even while browsing on the Internet and the desktop which is rather worrying since the laptot has 12 GB memory.
Does anyone has an idea what is the reason for such low performances?
Thanks by advance.

Answer 1

Try this with your video card and power settings:
Go to NVIDIA Control Panel (right click on desktop, 8th selection down), select/click
First tab {Adjust image settings with preview}:
Select: {Use my preference emphasizing: Performance}
**select "performance"**
Hit {Apply}
Second tab {Manage 3D settings}
**It gets technical but make sure it is exactly as I say it or it will not work. **
Go to Subtab 1{Global Settings}:
{Preferred graphics processor:}
**SELECT "High-performance NVIDIA processor** *(see Note 1 at end)*
Settings: *Again,it has to be exact; first phrase in { } is "Features" the first column, second phrase in { } is the "Settings", the second column:
**Everything is on a drop-down menu if you click on the {Feature} name and mouse over the {Setting} option**
{Ambient Occlusion} {Performance}
{Anisotropic filtering} {Off}
{Antialiasing-FXAA} {On}
{Antialiasing-Gamma correction} {On}
{Antialiasing-Mode} {Off}
*Grayed out* {Antiliasing-Setting} {None}
*Grayed out* {Antiliasing-Transparency} {Off}
{CUDA-GPUs} {All}
{Maximum pre-rendered frames} {4}
{Multi-dislpay/mixed-GPU acceleration} {Single display performance mode} (see Note 2)
{Power management mode] [Prefer maximum performance] **a no brainer but its default is not this setting**
{Texture filtering-Anisotropic sample opt...} {On}
{Texture filtering-Negative LOD bias} {Allow}
{Texture filter-Quality} {Quality}
{Texture filtering-Trilinear optimization} {On}
{Threaded optimization} {Auto}
{Triple buffering} {Off}
{Vertical sync} {Off}
*Hit "Apply" before moving to the third tab {Set PhysX Configuration}
Third tab {Set PhysX Configuration}:
*ONLY SETTING IN TAB*
Select "GeForce GTX 670M"
Hit {Apply}
**NOT "CPU" and, NEVER "Auto-select (recommended)"** (see Note 1, again)
Go to Power Settings in your Control Panel:
Choose a Power Plan Option (Search "power" in search bar, choose the "Power plan", second selection under "Power Options" page.
*GO WITH THE HIGH PERFORMANCE OPTION, VERY CRITICAL!!!!* By default it is on "balance" (I believe)
Note 1: As far as I can tell the OS (Win8) can't transition like Win7 did between CPU and graphics card. Therefore every time graphics get going hard enough to demand the cards performance, the frames per rate stops or slows.
Note 2: Select other option if setup is different.
~Experience:Electronics Technician, Gaming (Blizzard, Steam, and EA Games), Trial and Error