Severely underclocked GTX460M

JennyM

Member
Jul 13, 2012
200
0
Ireland
Hey all, So, after upgrading my Nvidia GTX260M to the GTX460M 1.5 Gb I had a week of fabulous gameplay & graphics were awesome, fps was a steady 60. Fans were running pretty hard. Suddenly game was unplayable, fps dropped to 8; dvd playback also choppy.

I checked GPU stats with TechPowerUp GPU-Z and discovered my GPU Core Clock was running at a constant 202MHz GPUmemory clock at 162, shader clock 405, GPU temp 42 C, memory used 120 MB.

On reading the sensor log history, the GPU core clock even drops to 50Mhz.

From scouring the internet I'm thinking the card is trying to protect itself by underclocking, Alienware tech guys are sending out a technician next week to put some paste somewhere in the housing (is that right?) Think they're replacing heatsink too, but I know from recent events that heatsink was checked & is fine.

So my question is why is this happening, my M15x is supposed to support this card, is there anything else you think should be upgraded in order for my system to cope with the card?

Processor - i7 Q720 1.6GHz
RAM 8 GB

Thanks,

Jenny :confused:
 

JennyM

Member
Jul 13, 2012
200
0
Ireland
Tech guy replaced heatsink & paste, but he says temperature is not high, its just 60 - 64 degrees C which is normal, so why fans would be roaring at that temperature I'm not sure. The card is sometimes running at 569Mhz, but also still downclocking for long periods to 202Mhz, but now the fps stays normal at 45 - 60, thats with the graphics settings at high or good; So i'm wondering do these cards run normally at a low clock speed for some reason? Does anyone out there have a GTX460M and know what core speed their card runs at generally in gameplay?

Before the tech guy came yesterday I did a small render test using the TechPowerUp GPU-Z program, this seemed to reset the card problems & I was able to play games for the first time.

I'm stumped as to what the problem was, but hoping its fixed now. The tech guy wants me to run the card hard all weekend as he thinks it might be faulty, before Dell phone to check if the problem is solved.
 
Last edited:

MattyB

Resource Administrator / Forum Moderator
Mar 19, 2012
3,298
159
Adelaide, Australia
Good luck! I hope it's all fixed for you now. Don't know why the fans would be roaring at lowish temps. Maybe there is a faulty sensor somewhere that makes it think it's running hotter.

Looks like you'll have a busy weekend keeping that card busy. Better put on a pot of coffee and get comfy! :D
 

JennyM

Member
Jul 13, 2012
200
0
Ireland
lol! Aeon knows everything!

Well, fps down again this morning to 7, games unplayable, dvd's playing choppy again...so much for my weekend of heavy gaming! lol!

Alienware tech support guy said he'd have to talk to his supervisor about it & he'd phone me back 4 hours ago >.< I wish I knew the problem, I hate not knowing whats wrong before I phone them. I just hope they don't want my lappy sent off. Think I'll try phoning them again, might get someone different... :)
 

Maelstrom

Member
Feb 25, 2012
698
0
Alabama
lol! Aeon knows everything!

Well, fps down again this morning to 7, games unplayable, dvd's playing choppy again...so much for my weekend of heavy gaming! lol!

Alienware tech support guy said he'd have to talk to his supervisor about it & he'd phone me back 4 hours ago >.< I wish I knew the problem, I hate not knowing whats wrong before I phone them. I just hope they don't want my lappy sent off. Think I'll try phoning them again, might get someone different... :)

I don't know how to fix what ever is wrong. But you should be able to watch DVDs with the integrated graphics at least.
 

JennyM

Member
Jul 13, 2012
200
0
Ireland
Think I've solved the problem - at least temporarily, after reading extensively on other peoples similar problems with this card. One of the solutions suggested, was to open Nvidia Control Panel > Manage 3D Settings > Global Settings > Power Management Mode - Change setting from Adaptive to 'Prefer Maximum Performance'. Clock speed instantly went back up to 569Mhz and stayed there.

Wondering if that means my card isn't faulty? Or is it still faulty & the above solution is just a way to prevent the card going into power conserve mode unnecessarily? At least I got a few hours playing world of warcraft! xD