Nvidia GPU with low performance

[Bruno_A]

Hey, so, I've got a Toshiba laptop running winwith an i7 4700MQ, an nvidia GT 740M and 8GB of RAM and I've been experiencing very low performance in every game I play, which started happening a few months ago and when it started happening I noticed the laptop was running a bit hot and cleaned the fan, which made CS:GO a bit more playable (60fps at low settings). But the GPU still wasn't running at its full potential so I tried all the basic stuff such as upgrading the drivers, downgrading the drivers, clean installing them, reinstalling windows and none of the things I did fixed it. A few weeks later the laptop started running hot again so I opened up the laptup and replaced the thermal paste both on CPU and GPU and it actually lowered the temperatures in a few degrees, but i was still getting low fps and at that time CS:GO was unplayable. Yesterday I contacted nvidia support and they told me to modify some stuff on msconfig and some other stuff on nvidia control panel and it still didn't fix it. So I did some research and found a technique that can fix some GPU's that simply won't work which is reflowing the GPU (resoldering the GPU to the motherboard) and I wanted to know if it could fix my issue, if it can't, where can I get a new nvidia GT 740M? I know these are not easy to find as they're manufactured and then soldered to the motherboard.

 

 

[XenosTech]

8 minutes ago, bruny06 said:

Hey, so, I've got a Toshiba laptop running winwith an i7 4700MQ, an nvidia GT 740M and 8GB of RAM and I've been experiencing very low performance in every game I play, which started happening a few months ago and when it started happening I noticed the laptop was running a bit hot and cleaned the fan, which made CS:GO a bit more playable (60fps at low settings). But the GPU still wasn't running at its full potential so I tried all the basic stuff such as upgrading the drivers, downgrading the drivers, clean installing them, reinstalling windows and none of the things I did fixed it. A few weeks later the laptop started running hot again so I opened up the laptup and replaced the thermal paste both on CPU and GPU and it actually lowered the temperatures in a few degrees, but i was still getting low fps and at that time CS:GO was unplayable. Yesterday I contacted nvidia support and they told me to modify some stuff on msconfig and some other stuff on nvidia control panel and it still didn't fix it. So I did some research and found a technique that can fix some GPU's that simply won't work which is reflowing the GPU (resoldering the GPU to the motherboard) and I wanted to know if it could fix my issue, if it can't, where can I get a new nvidia GT 740M? I know these are not easy to find as they're manufactured and then soldered to the motherboard.

 

 

I wouldn't risk reflowing the gpu... you might damage the board or melt off a nearby capacitor. Only do reflowing on things that you have already replaced but you wanna salvage the old one to do something with.

[Dabombinable]

15 minutes ago, bruny06 said:

Hey, so, I've got a Toshiba laptop running winwith an i7 4700MQ, an nvidia GT 740M and 8GB of RAM and I've been experiencing very low performance in every game I play, which started happening a few months ago and when it started happening I noticed the laptop was running a bit hot and cleaned the fan, which made CS:GO a bit more playable (60fps at low settings). But the GPU still wasn't running at its full potential so I tried all the basic stuff such as upgrading the drivers, downgrading the drivers, clean installing them, reinstalling windows and none of the things I did fixed it. A few weeks later the laptop started running hot again so I opened up the laptup and replaced the thermal paste both on CPU and GPU and it actually lowered the temperatures in a few degrees, but i was still getting low fps and at that time CS:GO was unplayable. Yesterday I contacted nvidia support and they told me to modify some stuff on msconfig and some other stuff on nvidia control panel and it still didn't fix it. So I did some research and found a technique that can fix some GPU's that simply won't work which is reflowing the GPU (resoldering the GPU to the motherboard) and I wanted to know if it could fix my issue, if it can't, where can I get a new nvidia GT 740M? I know these are not easy to find as they're manufactured and then soldered to the motherboard.

 

 

Reflowing won't do anything in your case. Its more than likely just a case of the laptop having a very poor cooler for its CPU+dGPU configuration. (My old laptop was bad enough with a Phenom II N970+MR HD5650, let alone the i7 840qm+MR HD5650 that the higher end models had. And new thermal paste did make a difference with that as well)

[Bruno_A]

26 minutes ago, XenosTech said:

I wouldn't risk reflowing the gpu... you might damage the board or melt off a nearby capacitor. Only do reflowing on things that you have already replaced but you wanna salvage the old one to do something with.

So, are you suggesting that I should replace it with a brand new GPU? I didn't quite get it, sorry

[Bruno_A]

22 minutes ago, Dabombinable said:

Reflowing won't do anything in your case. Its more than likely just a case of the laptop having a very poor cooler for its CPU+dGPU configuration. (My old laptop was bad enough with a Phenom II N970+MR HD5650, let alone the i7 840qm+MR HD5650 that the higher end models had. And new thermal paste did make a difference with that as well)

But before it started happening, I was able to play CS:GO, modern warfare 2 and 3 at max settings and many other games and now can't even play them at the lowest setting and resolution. My graphics card now runs at 100° C, I can try and clean the fan today, but it will not make these games playable, I can guarantee that.

[XenosTech]

2 minutes ago, bruny06 said:

So, are you suggesting that I should replace it with a brand new GPU? I didn't quite get it, sorry

No I'm saying if that is your only laptop then don't do it. Too much could go wrong .

[Droidbot]

2 minutes ago, bruny06 said:

But before it started happening, I was able to play CS:GO, modern warfare 2 and 3 at max settings and many other games and now can't even play them at the lowest setting and resolution. My graphics card now runs at 100° C, I can try and clean the fan today, but it will not make these games playable, I can guarantee that.

If you really want good temps, take the machine apart and clean the fan and repaste the CPU/GPU, or go to a PC shop that will do so. My Alienware M11xR3 used to run CSGO at 1366x768 120frames, now it's 75 and thermal throttles within 3 rounds to 10FPS. Fan and cooling system was totally fucked, but I ended up just replacing the machine (it's 5years old, cooling system was $75, battery $75, SSD upgrade needed, etc) 

[Bruno_A]

5 minutes ago, Droidbot said:

If you really want good temps, take the machine apart and clean the fan and repaste the CPU/GPU, or go to a PC shop that will do so. My Alienware M11xR3 used to run CSGO at 1366x768 120frames, now it's 75 and thermal throttles within 3 rounds to 10FPS. Fan and cooling system was totally fucked, but I ended up just replacing the machine (it's 5years old, cooling system was $75, battery $75, SSD upgrade needed, etc) 

I already replaced the thermal paste, any chance it is a faulty fan or heatsink? I also remember the cpu thermal throttling but it got fixed when i replaced thr thermal paste