SUBHO Posted March 9, 2013 Share Posted March 9, 2013 Hi guys, I have recently bought Lenovo Y500. Other than the touchpad issue the laptop performs great, but when I run games on battery power , the performance drops drastically. FIFA 13 max settings (above 60 fps to 17-22 fps) Mass Effect 3 max settings (40-60 fps to 7-8 fps) Nfs mw 2012 med settings (20-40 fps to .....) etc... I travel by train usually and long distance journey takes almost 36-48 hrs (India). Please help... Quote Link to comment Share on other sites More sharing options...
Founder Brian Posted March 10, 2013 Founder Share Posted March 10, 2013 That's normal, its part of the power management function of a GPU. Quote Link to comment Share on other sites More sharing options...
finalkiss Posted March 10, 2013 Share Posted March 10, 2013 Your computer power settings force it to shed to maximize battery life. you could try playing with your power management settings. Quote Link to comment Share on other sites More sharing options...
SUBHO Posted March 11, 2013 Author Share Posted March 11, 2013 I have tried to tweak power management from control panel but nothing has changed. can you specify any other tweaks...The drop in performance problem is not limited to games but other CPU, GPU intensive programs too. Quote Link to comment Share on other sites More sharing options...
Psyrecx Posted March 21, 2013 Share Posted March 21, 2013 Even if you adjust all of the Windows or nVidia drivers, the GPU still struggles on a battery. It doesn't seem to lower the clocks on anything though, so the battery may just not be powerful enough or allowed to fully power the 650m. Quote Link to comment Share on other sites More sharing options...
faarys Posted March 25, 2013 Share Posted March 25, 2013 Lenovo has made it like that LOl,i think the battery power can't support too much the GPU(especially in SLI mode) Quote Link to comment Share on other sites More sharing options...
kefjeuh93 Posted April 2, 2013 Share Posted April 2, 2013 isn't there a solution for this when you have an unlocked bootloader ? I don't have sli btw because indeed the battery won't be able to keep up Quote Link to comment Share on other sites More sharing options...
Psyrecx Posted April 3, 2013 Share Posted April 3, 2013 The battery can't handle the power required for a single GPU let alone two in SLI. Quote Link to comment Share on other sites More sharing options...
Moderator BAKED Posted April 3, 2013 Moderator Share Posted April 3, 2013 The GPU clocks down on battery, if you flash your vBIOS with higher clocks on battery state it might work but you won't be able to play for too long though Quote Link to comment Share on other sites More sharing options...
hli53194 Posted April 5, 2013 Share Posted April 5, 2013 The GPUs downclock/volt by themselves on battery power. This is a feature to prevent overdraw on the battery. Plus you wouldn't get much out of gaming on battery anyways, probably 30 mins at most. Quote Link to comment Share on other sites More sharing options...
TheGarden Posted April 6, 2013 Share Posted April 6, 2013 Something that may help is to go to the desktop and right click, then go to Nvidia Control Panel. From there click "manage 3D settings" and scroll down until you find "power management mode". Click it, then click "prefer maximum settings". That helped with a couple games. Quote Link to comment Share on other sites More sharing options...
juukes Posted April 7, 2013 Share Posted April 7, 2013 i also have this problem with my y500 single gt 650m. im wondering if the bios mod people have been using to be able to unlock the 790 gpu core clock. would help with this problem? Quote Link to comment Share on other sites More sharing options...
Sn00pX Posted April 8, 2013 Share Posted April 8, 2013 I read, that the second GPU is disabled, when running on Battery, even if it would work, your playtime would probably decrease to half an hour, I don´t think it´s worth the effort, trying to make it work Quote Link to comment Share on other sites More sharing options...
mzy524 Posted April 11, 2013 Share Posted April 11, 2013 this is a normal one, only thing to do is not using battery but power supply. Quote Link to comment Share on other sites More sharing options...
IronPip Posted April 11, 2013 Share Posted April 11, 2013 I can second that the second GPU doesn't seem to work on battery. I was doing some work in afterburner and had a system crash after pushing the memory up too high, and when I came back in and did testing with kombuster the second GPU wasn't utilized, or was used maybe 5%. After freaking out for a bit thinking I killed the card, I noticed the battery icon. Somehow the power input had come unattached during the reboot. Quote Link to comment Share on other sites More sharing options...
RedLionRisen Posted April 12, 2013 Share Posted April 12, 2013 I'm not sure why the laptop works this way, but the gpu clocks drop significantly on battery mode, and unfortunately I don't know how to keep that from happening. It even does this when you are forcing overclocks on the gpu :/. What's worse is if you use the battery preserving feature (to keep the battery at 60% charge), if it's not charging it may enter the lower clock state too. Quote Link to comment Share on other sites More sharing options...
Usraek Posted April 12, 2013 Share Posted April 12, 2013 See thread here for more information:Y500 Lagging on battery - Lenovo Community Quote Link to comment Share on other sites More sharing options...
hendrickxjonaspvt Posted April 13, 2013 Share Posted April 13, 2013 See thread here for more information:Y500 Lagging on battery - Lenovo CommunityIt's because the GPU actually throttles when on battery. It can never run at the same performance as if you were on AC power. I tested this with Dell Inspiron N5110. To be honest you shouldn't be gaming on battery anyway. I don't think it's healthy for the battery either Quote Link to comment Share on other sites More sharing options...
Usraek Posted April 13, 2013 Share Posted April 13, 2013 It's because the GPU actually throttles when on battery. It can never run at the same performance as if you were on AC power. I tested this with Dell Inspiron N5110. To be honest you shouldn't be gaming on battery anyway. I don't think it's healthy for the battery eitherOne would think that it may be extremely obvious that your tiny 65W battery isn't going to power the SLI machine you need a 170W adapter for... Or even 120W without SLI... *shrug* Quote Link to comment Share on other sites More sharing options...
Cordelle Posted April 13, 2013 Share Posted April 13, 2013 all laptop gpus throttle or use integrateed graphics on battery Quote Link to comment Share on other sites More sharing options...
radicalatheart Posted April 15, 2013 Share Posted April 15, 2013 Is the battery really 65W? That explains. He could still overclock the Low power clocks but thats dangerous. Quote Link to comment Share on other sites More sharing options...
Usraek Posted April 15, 2013 Share Posted April 15, 2013 Is the battery really 65W? That explains. He could still overclock the Low power clocks but thats dangerous.Actually, looking at my battery, it seems to be 72W. Trying to run a GT650m off that at full speed would kill it quick and dead. Quote Link to comment Share on other sites More sharing options...
gnan10 Posted April 15, 2013 Share Posted April 15, 2013 performance dropping drastically is pretty normal becuase for saving more battery and The battery really can't handle the power required for a single GPU let alone two in SLI as people said above Quote Link to comment Share on other sites More sharing options...
wuzongh Posted April 20, 2013 Share Posted April 20, 2013 The GPU drops to 135Mhz on battery. And nothing works even I tried to overclock the thing. Quote Link to comment Share on other sites More sharing options...
t3hWheez Posted May 19, 2013 Share Posted May 19, 2013 Sad but unfortunately even changing the power management settings will not change this. The only negative part about this laptop is by far battery life.. Quote Link to comment Share on other sites More sharing options...
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