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MCullie
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Posts: 7
Registered: ‎05-10-2016
Location: US
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Message 1 of 13

Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Hello everyone, I've recently replaced the fan in my Lenovo Y-500 Laptop due to a mechanical failure in my last fan/heatsink. The new fan is installed properly and works fine, but now whenever I try to play a game I get severe FPS loss. Games that recently would run at 60+ fps are now running on average between 10-15 frames sometimes dropping even lower.

 

The thing is aside from games everything else appears to run fine no overheating issues, everything loads quickly, and I'm not seeing any issues with the memory or video cards themselves.

 

My hard-drive has been showing a single damaged block for the better part of a year but prior to replacing the fan this caused no noticeable issues. I've tried everything from reverting to factory settings and downgrading back to windows 8, I've replaced the old fan, and completely updated all drivers I could think of. As well I've set Nvidia's power settings to maximum, and made sure the computers power settings were on max as well, but this issue persists in any game that is loaded.

 

The computers specs ar

Lenovo Y-500

Operating System: Windows 8

CPU: Intel Core i7 (3rd Gen) 3630QM / 2.4 GHz

GPU: Nvidia GT 650m 2GB -SLI x 2

Memory: 2x 8GB DDR3

Hard drive: 1TB HDD

 

And this link is to the offical hardware manual I followed to install the new fan :https://download.lenovo.com/consumer/mobiles_pub/ideapad_y400y500_hmm_1st_edition_sep_2012_english.p...

 

I'm just looking to get my laptop back to working condition, but I will admit I am absolutely stumped as to what could be causing this issue, and any help or insight would be greatly appreciated, thanks!

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Posts: 3,772
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Message 2 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Welcome to the Forums Mcullie! 

 

You can also try turning off the adaptive power settings in the Nvidia control panel. Also you may want to look at your cpu usage while playing a game and see if the cpu usage spikes with framerate drops. And see if your games are using all of your video memory.

 

Your problem might be similar to these threads:

Y50: Unexplained FPS drop while gaming

Lenovo Y50 Performance Is A Joke, Any help? 

 

When the machine heats up, it's likely that the clock rate of the CPU/GPU throttles down to stabilize the system which may explain the FPS drop during games.

 

To verify this, try to:

  1. Download and install RealTempand GPU-Zto monitor the CPU/GPU temps respectively and observe the clock speed while the unit is idle (the i7-4720HQ should reach 3.5 GHz++ and the GTX960M around 1029 MHz++)
  2. Enable logging on RealTemp and GPU-Z and run the game (preferably in Window mode) and observe the CPU/GPU clock speeds

https://www.techpowerup.com/realtemp/docs.php

 

To stop the CPU/GPU from throttling down, try to download and runThrottlestop and set it to look like these images and see if which one works for you:

 

Link to image

Link to image

 

Let us know how you get on.

Regards,

Shashi

 

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MCullie
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Posts: 7
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Message 3 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Thanks for the welcome, and the response Shashi. I have tried turning off the adaptive power and setting it to "Prefer maximum performance". 

 

Looking at my CPU usage playing Counter-strike global offensive I was using approximately 2% of my overall CPU, and about 400mb of memory. Prior to this issue I was getting 60 frames fairly steadily at medium graphics as of now I get 27-35 on lowest possible settings. I tried monitoring CPU usage in a much less demanding game with Hearthstone and it showed around the same area of 2% CPU usage and 200mb of system memory. 

 

Real temp is showing an average of 68c and while running CS:GO the 3630 is hovering around 2800Mhz 

 

GPU-Z is showing an average temp of 89c in the first GT 650M with with a clock speed of 645.5 Mhz. While the second GT 650 M shows a temp of 59c and a clock speed of 789.8Mhz

 

I tried using Throttlestop and matching them best I could to the images below although some options were unavailable neither configuration seemed to make any noticable difference. 

 

I can provide the logs if needed or screenshots from GPU-Z if needed, thanks again!

 

Retired Support Specialist
Posts: 3,772
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Message 4 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

We are sorry to hear that your issue has not yet been fixed.

 

If the laptop is running on the battery, you will always be facing this problem. You have to run the games while using the power cord. If you're running on battery, you may get half or 1/4 of the machine's performance.

 

Also, Open the power options > change plan settings > change advance power settings and ensure the Link State Power Management is Off and Maximum Processor State is set to 100%.

 

original.jpgIt looks like the GPU is on Power State P0 (P0 = full power 3d) but the GPU clock is no way near 800Mhz+ which is the max clock speed of the GPU. Can you try to check under Nvidia Control Panel > Manage 3D settings > Program Settings (Saints Row 2) and see if the "select the preferred graphics processor" is set to use "High Performance NVIDIA processor" (see this video in reference)

 

Alternatively, try to use Nvidia Inspector to control Optimus (see this thread). - More info here.

 

Let us know how you get on.

Regards,

Shashi

 

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MCullie
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Message 5 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Thanks for replying again. I thought that may be the case initially, but the power cord is plugged in and the battery is at 100% charge. 

 

I have set link state power management to off,  and the maximum processor state was already set to 100%.  Neither of these seem to any effects on the issue.

 

Nvidia control panel doesn't give me the option to select my preferred graphics processor nor do I see a Saints Row 2 option, and the only options I can find in Nvidia Inspector appear to be options for overclocking which isn't what I'm looking for as my computer played these games just fine last week its only as of replacing my heatsink fan that this problem has occured. 

 

The power state is indeed in P0, but changing the setting didnt seem to have any effect.  

 

I appreciate your patience and any more insight you might be able to give me with this issue. 

 

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Posts: 3,772
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Message 6 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

If you can play in Window Mode, try to monitor your CPU temps from time to time and observe if the frequency drops (e.g. from 2294.35Mhz to less than 1900Mhz). If this happens, your CPU is throttling due to heat, otherwise, the CPU is operating normally.

 

I once experienced this issue until I re-applied the thermal paste using the tiny dot method (also tried different TIM brands but the Noctua NT-H1 works for me).

 

If all these procedures doesn't work, try to update the driver from the Nvidia Website and observe. Last resort would be backing up your files and doing a factory reset to isolate if it's an OS issue.

 

Let us know how you get on.

Regards,

Shashi

 

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MCullie
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Message 7 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Playing CS:GO in windowed mode is showing an average of 2900 Mhz and goes up to around 3100 Mhz I'm getting around 40 frames still in windowed mode on low setting with some screen tearing after playing for about 15 minutes. 

 

GeForce experience shows I'm up to date on the Nvidia graphics driver, and I can do it again ,but I did a complete factory reset as 3-4 days ago when this problem arose, and downgraded from windows 10 to 8. 

 

 

Retired Support Specialist
Posts: 3,772
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Message 8 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Vysnc prevents screen tearing, but it has the side effect of only being able to run a game at 60fps or 30fps.  If performance drops under 60fps even slightly, the frame rape drops to 30fps. Try disabling it in the ingame settings.

 

If you like vsync because it prevents screen tearing, enable it in the nvidia control panel (manage 3d settings -> program settings -> select your game) and make sure triple buffering is on. This prevents the sudden frame drops Nvidia also has a new feature called adaptive vsync which also solves the problem.

 

Click here for better understanding on V-Sync

 

Let us know how you get on.

Regards,

Shashi

 

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MCullie
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Message 9 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

I'm sorry and I don't mean to sound pushy, but I believe its not a Vsync issue. This problem occurred literally after replacing the main heatsink and fan. The rest of the computer runs fine, but any game regardless of how demanding it is of the graphics lags, screen tears, and results in low FPS. 

 

I'm thinking it might be a hardware issue, but I don't have a clue as to what specifically would cause the system to still run games, but struggle doing so.  These all rans perfectly fine as of 5 days ago. 

 

Changed my global settings to triple buffering, restarted the computer, and ran all Windows updates and getting severe graphical lag and low fps with no change to performance whatsoever. 

 

Could this be an issue of needing to replace the CPU or one of the GPUs? 

MCullie
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Registered: ‎05-10-2016
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Message 10 of 13

Re: Lenovo Y-500 - new laptop fan resulting in extreme FPS loss .

Todays attempts show that most of my games will either cap at 30fps or refuse to run about 30fps with some dropping. 

 

This seems like it would be a V-sync issue, but V-sync is turned off everywhere it possibly can be. 

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