rockykoston

No , i dont know any official ratio. Like I said, every GPU chip has different settings that work. You can try different values and always come down to these, if those dont work. For me, I found a sweet spot, as mentioned in my earlier screenshots. Any game and the temps dont go higher than 80 for me.

I am sure this forum has more intelligent people than myself however I can tell you that undervolting is definitely not going to harm your chip when done in reasonable boundaries. Basic concept - The GPU needs a certain voltage to achieve the higher clocks. Some GPUs can achieve their higher clocks at a lower voltage as well, which essentially reduces the heat generated in the chip from voltage (Undervolting) Reducing the clocks decreases the stress on the chip at a given voltage. Main objective - To find a voltage and clock combination that will reduce heat and give a stable system. Now, certain GPUs may not show temp drop even after undervolting, this is just due to the way it has been manufactured. No 2 chips are the same and wont behave the same. All I can recommend is you can drop the voltage by 125mV and reduce the Base clock by 100 and Memory clock by 250, see if that helps.

The cache voltage is fine. You underclocked both settings - Base clock (-50) and memory clock (-100)? You can try reducing the voltage further to -100mV, keeping the clocks at same level and see if there are any crashes. Also, you can apply this mod to provide good ventilation for the Ultrabay fan - https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y510p-Ultimate-Cooling-Mods-Revealed-Unshroud-your-cooling-fans/td-p/1533688 The mod will void warranty. I have applied this mod also. Try running GPU-z when you are playing the game, to see what max clocks the GPU is reaching, post a screenshot of the graph and values screen of GPU-z.

Here are the settings I have applied on both my main GPU and Ultrabay GPU. You may also want to use NVIDIA Extreme Tuning Utility to reduce your CPU turbo clocking, to help reduce temps. Look at the values I have highlighted in the screenshot -

You only need to flash the Ultrabay. (1) The BIOS flash takes care of the Main GPU.

I have not tried it and wont try it. Why? Because Y510p is officially not supported by Lenovo for Win 10. My advise to keep a gaming rig running is to stay on win 8.1 as most games run on that OS. As for observations around the forums I have gathered that you may encounter either of these problems - 1) Unable to adjust brightness 2) Wifi stops working (Big Issue on both 7260 and 2230 chips) 3) Lenovo support apps stop working. 4) BSOD Only a couple of users have reported W10 success on Y510p.

Just to put in my experience, my CPU was reaching about 85 celsius under heavy gaming load, my bigger problem was Ultrabay which was going to 98 celsius. Installed the modded BIOS and undervolted both Main and Ultrabay GPUs by 87.5mV (Value -87.5mV) Used Intel XTU to reduce the Core 3 and Core 4 clock multipliers to 27x. (I think this is what you should try - You wont lose much performance) My current CPU temps dont ever go beyond 75 celsius, playing Dragon Age Inquisition/Shadow of mordor on high settings. I dont know what is CPPC, but if you need feedback I can refresh my knowledge with that.

1) Well, switch off Wifi and try playing. Do you see any improvement? 2) Try uninstalling the GPU drivers (Control Panel > Device Manager and Programs & Features) Install a fresh set of drivers, maybe download an earlier version say 347.25, to test first. (If you need detailed instructions on a CLEAN INSTALL, let me know) 3) In DXdiag, see what is your Display tab showing. 4) Download CPUHW Monitor, run it and play a game. See what is the activity on your CPU and GPU. 5) Play a simple youtube video (Full HD), does it play well? Set your modded BIOS to defaults. I also modded the BIOS but never had such issue. Also, before doing the mod, I read through like 165 pages (yes all) and found no such issue.

First off, if you have read enough, you should know NOT to change GPU setting in the BIOS. It might brick your system. Now, coming to your fps issue. 1) Which game are you playing 2) what is the fps 3) what is the temp of CPU/GPU 4) What is your GPU driver version? 5) Have you confirmed SLI is enabled in NVIDIA Control panel? 6) Can you post screenshots of NVIDIA driver version/DXdiag?

Looking at all the troubleshooting that you have done, you might just have damaged the GPU chip with the wrong power supply (or maybe it was already damaged, if you bought the laptop recently). I have seen that error but usually it gets fixed by resetting windows. You have a custom BIOS, so that doesnt help either.

My Ultrabay was doing the same. No crashes but temp was 98 degree celsius. Here is a copy of my post if you want some suggestions to bring down the temps - 1) You can install the unlocked BIOS and VBIOS mod mentioned here - Lenovo Y410p / Y510p - unlocked BIOS / wlan whitelist mod / vbios mod Then use NVIDIA Inspector to, Reduce clocks on both GPU by 100 Mhz Reduce voltage on both GPU by 87.5 mV and you laptop will never go beyond 80 C on any of them. 2) Use NVIDIA XTU to downclock your CPUs at Core 3 and 4. I have mine set at 27x. 3) Do the Y510P casing mod to provide good cooling for the Ultrabay fan. https://forums.lenovo.com/t5/Lenovo-...1533688#M78976 Note - Mod in Step 3 will void your warranty. Do, with all those mods and an ambient temp of 32-35 C these are my current temps (Playing BF3, Dragon Age inquisition, Shadow of mordor on Med/High) - CPU max - 78 Main GPU max - 79 Ultrabay GPU max - 79 I am still playing and after 3 months of these mods my laptop does not go beyond 79 degrees on any component.

Sorry for delayed response. As I mentioned, the clock speed reduced by 100. Voltage reduced by 87.5 (On the slider, slide it towards left till you hit -87.5) The Save this configuration on your desktop. Each time you restart the laptop, you can click on this configuration file (which will have same icon as NVIDIA inspector) to set the required values. You can play the games after that. If crash happens, post a screenshot of your NVIDIA inspector showing what you have modified. Thanks.

For the Y510p, the recommended power brick should be 120W. (Get the official Lenovo one) If your system is SLI, then you need a 170W power adapter.

Like NonXtreme said, every chip is different and you will have to find the voltage that works best for you. Some chips may not even allow undervolting, sometimes thats the way it is.

FOR CPU Your CPU is running too hot, try to cool it down by using INTEL XTU. Turn the 3 core and 4 core setting down to 27x and the voltage to -50mV. Watch this youtube video, if necessary - FOR GPU I did not modify any setting in BIOS, but I am using an unlocked BIOS which enables NVIDIA Inspector to change the clocks and voltage of the GPUs. Reducing voltage upto a certain limit does not affect performance and keeps the system cool. Please read point 1 in my previous post for GPU undervolting and downclocking. If you have a specific question, I would be glad to help.

That is not entirely true. My laptop was running quite hot (since summers hit) with Ultrabay reaching 98 C. With a few mods, its running cooler. 1) You can install the unlocked BIOS and VBIOS mod mentioned here - http://forum.techinferno.com/lenovo-ibm/4668-lenovo-y410p-y510p-unlocked-bios-wlan-whitelist-mod-vbios-mod.html Then use NVIDIA Inspector to, Reduce clocks on both GPU by 100 Mhz Reduce voltage on both GPU by 87.5 mV and you laptop will never go beyond 80 C on any of them. 2) Use NVIDIA XTU to downclock your CPUs at Core 3 and 4. I have mine set at 27x. 3) Do the Y510P casing mod to provide good cooling for the Ultrabay fan. https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y510p-Ultimate-Cooling-Mods-Revealed-Unshroud-your-cooling-fans/m-p/1533688#M78976 Note - Mod in Step 3 will void your warranty. Do, with all those mods and an ambient temp of 32-35 C these are my current temps (Playing BF3, Dragon Age inquisition, Shadow of mordor on Med/High) - CPU max - 78 Main GPU max - 79 Ultrabay GPU max - 79

If you only have the single GT755M model, then you cannot disable the Intel GPU, UNLESS you apply the unlocked BIOS. For what purpose would you like to disable the Intel GPU? It is only being used for tasks such as Browsing, watching movies etc., for gaming your main GPU will kick in.

I would say that I play a lot on my Y510P with graphically intensive games such as Shadow of Mordor, Dragon Age Inquisition, Metro Last Light etc 1) Normal Temp can be answered for different parts of the laptop - CPU - 80 - 85 Main GPU - 80 - 85 Ultrabay - 90 - 95 2) It is not normal (for health purpose ) to play for 5-8 hours, but I also do it on occassions. Games such as Fallout, Dragon Age need the time. 3) If you are saying that your Ultrabay is 10C LOWER, then something is either wrong with your main GPU or your Ultrabay is not being used correctly. Here's why - a. Ultrabay GPU fan does not have a clear opening for fans. b. Ultrabay GPU has no proper cooling or heat dissipation, so it should heat up more. MODS - I have applied a few mods to my system and now I am getting a decent performance (I dont think there is any loss) with the following temps - CPU >> 75-79 C Main GPU >> 78 C Ultrabay GPU >> 78 C This is while playing the above mentioned games at med settings and getting an fps of 45-60. If you need more information, let me know. Thanks.

So, yes I was able to mod my BIOS and VBIOS as well. 1) I uninstalled Afterburner as well (not many options). I am using Nvidia Inspector for now to downclock and undervolt my ultrabay GPU. (Details below) 2) Here are some of the mods I had to do in order to bring the temps real low (since ambient temp is around 34) - a. I did the unshroud mod for Ultrabay mentioned in this link - https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y510p-Ultimate-Cooling-Mods-Revealed-Unshroud-your-cooling-fans/td-p/1533688 b. I have removed the dust filter from the back cover. c. Downclocked and Undervolted the Ultrabay GPU. Following are the downclocked settings - 1) GPU downclocked by 120MHz, so hovering around 900 Mhz 2) Memory downclocked by 300 Mhz, so hovering around 2400Mhz , shows as 1200 in GPU-z 3) Undervolted by 120mV, so max voltage now is 987 mV After an hour of testing games (Shadow of mordor and DA: Inquisition at Medium settings), I got 40-60 fps depending on scene and combat. CPU temp Max - 79 Main GPU temp Max - 75 Ultrabay GPU temp max - 75 System is stable but I will try to increase the voltage and clock a bit more and see if that increases performance, keeping temps under 85.

About my system - GT755M SLI - Ultrabay heating upto 98 degrees within 15 min. Ambient temp is 28 - 35 degrees So, since I had to do this, I did the entire process, followed each step meticulously. Couple of things missing and may cause problems for some users - 1) To Back flash 2.07, you need to ENABLE the BIOS back flash function in BIOS menu. This can be done at the starting of the process. 2) When you create the DOS bootable USB, it will look empty. 3) If you are trying to boot DOS from USB and it doesnt work, you will need to go into BIOS and set the boot mode to 'Legacy Support'. and then priority as 'Legacy First'. 4) After Step 3, you will be able to boot from the DOS USB (but your windows wont boot) 5) To boot windows, you will have to revert back to UEFI mode in BIOS. Many thanks to svl7 for creating this. After applying the BIOS and the VBIOS for GT755M SLI, I did the following modifications through NvidiaInspector - 1) GPU clock down by 120 2) Memory clock down by 300 3) Undervolt by -112.5mV The max temp I got on Ultrabay was 75 degrees (with avg of 72). The system appears stable (no crashes in about an hour of gaming) but I will try to make the undervolting to 100mV and see the stability, maybe also reset the clocks to original settings. The CPUs are maxing at about 80 and same for the main GPU. If anyone has any questions, I can help you out. If you have bricked your BIOS, then this thread also has several solutions to try (I just went through all the posts, yes all). Try boot, then F2, wait, F9 and then F10. I would recommend creating a old BIOS backup on a DOS booting USB. Thanks again.

I was also planning to upgrade to 353.30 but tried searching for the problems while it was downloading. Found a bunch and hence decide against the upgrade. There have been 2 hotfixes, if I am corrcet, after those drivers. Is there any improvement? Should I just stay on the 347.25 drivers. I have a GT755M SLI setup. Also, I wanted to ask. Can the drivers result in high temperatures on GPU? Should I revert to an even more old driver since I am experiencing higher temps on one GPU now. I am willing to try anything and will be doing some voltage tweaks and maybe repasting as well. Thanks.

Hi Zuhair, I have 755M SLI as well and most games run well. The most demanding games that I have are Shadow of Mordor, Metro Last Light and Dragon Age Inquisition. At Med/high settings (no Tessellation and AO) - all games push the main CPU and GPU to 80 degrees. Games run at 50-60 fps (Locked at 60 max) My Ultrabay goes upto 98 now. The problem is that my current ambient temps are too high (27 - 35) and I don't have a air conditioning in the current setup location. I tried modding the clocks but the temps still reached the peak, just slower. I am going to mod the BIOS and VBIOS to change the voltage, i hope something changes. Did you do the mod? How were the results? Also, what are your ambient temps, do you use a cooling pad?

Since I have the same problem (my second GPU heats up), my observations to your questions - 1) If you already have the modified BIOS and VBIOS, you can use a utility like NVIDIA inspector or MSIAfterBurner to reduce the voltage and do a bit of underclocking. 2) The software you have posted have some presets for undervolting and underclocking scripts. I don't agree with running those, I would advise that you do it yourself. 3) From what I have read, undervolting by 100mV to 112.5mV works for most users. You can also underclock by 100. I will be modding my BIOS and vBIOS too, in order to do these setting. I will try to make a video or record my observations, will let you know if I do this properly. Let me know if you also resolved your issues.

Not sure if this is posted or not, so trying again - ok, so I read about 100 pages of this thread and I have a pretty good idea of what I want to do. Could someone please confirm the following things - 1) I have BIOS 3.05 and I only want to undervolt my Ultrabay GPU. (as it is over heating) 2) Can I undervolt my Ultrabay, just by flashing the VBIOS or do I need to flash the BIOS as well? 3) Do I need to go down to 2.07 BIOS in order to flash the VBIOS? My CPU is under control with max temp of 80, my main GPU is fine with max temp of 80. My Ultrabay GPU reaches 98 (on demanding games). Thanks. Note: I can delete this if it is duplicate or the mods can delete it.

ok, so I read about 100 pages of this thread and I have a pretty good idea of what I want to do. Could someone please confirm the following things - 1) I have BIOS 3.05 and I only want to undervolt my Ultrabay GPU. (as it is over heating) 2) Can I undervolt my Ultrabay, just by flashing the VBIOS or do I need to flash the BIOS as well? 3) Do I need to go down to 2.07 BIOS in order to flash the VBIOS? My CPU is under control with max temp of 80, my main GPU is fine with max temp of 80. My Ultrabay GPU reaches 98 (on demanding games). Thanks.