So, as we all pretty much know, when unplugged the m17x drops to the P8 state, and reduces the performance of the 580m drastically.
My concern is how to disable this. I understand that battery power may take a massive hit, but that is not a big concern right now. What I want to do is disable to throttling that takes place when unplugged.
I am currently running the 301 nvidia drivers (have tried on various drivers), custom vbios removing the voltage throttle at 63C, and have powermizer disabled. However, nothing impacts.
Has anyone found a good solution to fix this throttle down when unplugged, or is there simply not a way?
m17x r3
1080p FHD 120hz 3D
GTX 580m
i7-2670qm
8gb kingston hyperx 1600mhz
750gb HDD
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There is simply not enough power while running on battery for the card to work at full speed.
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my bad, posted a powermizer doc. but you already took care of that
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I found a couple "fixes" including a vbios with increased P8 clocks/shaders, but only up a little bit. I also see that the program 'throttle fix' can keep it from throttling down but cause heavy wear on the battery, so probably not headed that route.
Just sucks that it doesnt have a better, on battery option. Off battery my two year old hp dv7 3079wm performs better.
Anyone know if this is specific to 580m or if the 6990m has the same issue? -
bigtonyman Desktop Powa!!!
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With the throttling down it definitely is a bit of a pain, but I understand it. You cant put a high end gpu in the run on AC and then a mid range gpu to run on battery, but i just with the battery clocks and shaders were decent, at least.
I just want to make sure that a change to the 6990m wont have better performance off battery. -
bigtonyman Desktop Powa!!!
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Typically the P8 state (state battery power goes to) is generally:
GPU Clock 74mhz
Memory Clock 324mhz
Shader Clock 147mhz
Voltage 0.80
If you are around 250mhz I assume you are looking at mem clock, in which case it is less. -
bigtonyman Desktop Powa!!!
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thats what I was assuming. Mine are with the 580m. So it seems they are essentially going to perform the same.
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bigtonyman Desktop Powa!!!
Edit: On battery my 6990m is getting the following....
GPU core clock: 250-400MHz depending on whats going on
GPU Memory Clock: 900MHz
Note: Speeds were taken with GPUz -
So it appears that the 6990m is going to be getting better performance when on battery.
I wonder how that is translating to actual performance.
Any examples of performance on battery with games like bf3 skyrim or cod mw3? -
The problem of course is that it will kill your battery, and is even potentially dangerous, as it likely exceeds the rated specs of the battery by quite a bit. -
Hey, what is powermizer?
How does it affect the performance?
How to disable it? -
bigtonyman Desktop Powa!!!
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I have never been able to achieve adequate performance for gaming on battery with the M17x R2 or the M18x (with 6970M/6990M or 580M). As others have posted, the power draw is just too much for a battery to handle.
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I was able to game full power on my 6990M using battery power once powerplay was set to high performance on battery. Batteries can handle one card at stock gaming clocks, but not for more than 30 mins or so.. power draw like this will kill the battery very quickly. Once powermizer is disabled in the registry I'm sure the 580M can be used full power on battery, but I do not recommended this at all.
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SlickDude80 Notebook Prophet
ya, i'm with Geo, not recommended, the batteries were not made for that stress
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Ive seem someone using throttle fix to keep it from going to the lower, battery clocked, state. However, the concern was definitely pushing the battery past safe limits and potentially causing permanent damage.
I have also seen some overclocking done to the lower power state for the card, and wouldnt mind not being able to run modern games, but still want to get great performance out of older games. The lower state, or igp for some setups, works fine for that, but just annoying.
I have powermizer disabled through the 301 nvidia drivers and through two separate programs (been seeing which one works best), and all it does is actually cause more heat generation in my system lol. I typically get about 5 more degrees in idle state of heat than when powermizer is off.
I just wish I had the chance to use it on battery, like buying an oversized battery or portable power dock. I would mind something like that. I just dont want to be stuck somewhere for a while without an ac plugin and not be able to use it.
Otherwise its great -
Get a portable petrol generator or solar power or something? XD
You could buy a spare battery and subject it to some insane testing, I'm sure you can run 620Mhz on the core on battery.. -
I wonder if a solar power or portable adapter could work. Not for practical use but just as something fun to test.
I use a power iverter in my car so i can plug things in and most places havea plugin. Though would be fun to find alternatives.
I think an accessory like that would be nice. A portable dock that you can precharge at home and then user like a portable ac power. I wouldnt mind having a bigass lithium battery or something as a spare or backup in case i was stuck out somewhere that i couldnt use an ac -
Just noticed this trying to play reckoning today.. first time trying to play anything unplugged and I got 8 fps... -_-
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I'm still on the edge with this thread to be honest...
Not sure if you're being serious about this or if you really don't understand how little of a charge your battery has...
When a battery says it has 87wH or something like that, it means it will hold a charge equal to 87 watts in an hour. So if you run that thing full tilt, you'll be drawing double that without question and I doubt the battery is designed for that rate of discharge, let alone the voltage levels.
Also, why are you trying to play games without it being plugged in? And why are you surprised that it throttles when unplugged? -
Well the idea really isnt about burning our your battery, but is about doing more with the laptop unplugged.
I can get 10-20 fps on many games I play, and while I know BF3 is out of the question, pushing the clocks a little would make those games like gta 4 , mw2, and farcry 2, playable in the 35+ fps mark.
So essentially looking at two things now:
How to create portable AC power.
How to OC the P8 clocks without pushing it too far.
It can be done, just trying to find a way. I have a power inverter in my car for road trips, which can power whatever I need. Solar charges can help at least charge a laptop, even if not duplicating AC power.
and I have seen vBios files that will OC the P8 state. The concern is that OC it too much will cause issues with heat and other problems. -
I wonder how long it will take to kill your car's battery...these laptop are not designed to do gaming on the go...
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I can help facilitate vbios mods but I cannot be held responsible for any damage.
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Actually a power inverter running on your car doesnt do anything to your car battery. We took a road trip to vegas last summer and had the laptop and phones hooked up. So we have a portable hot spot and the laptops. Also used our tablets.
The power inverters are designed to be portable witthout causing damage to the vehicle. I think the one we use is a cobra 800 watt one. There are others, but thats all the power we needed and didnt care to spend any more than that.
Amazon.com: Cobra CPI 880 800 Watt 12 Volt DC to 120 Volt AC Power Inverter with 5 Volt USB output: Car Electronics
There are many others out there, some go 1500+ watts and can power quite a bit, but always good to check them out in compatibility with your vehicle.
BTW, made for use while an engine is running. If you use it without the car running it can drain the battery. While the car is running, it doesnt effect the battery so long as your alternator is up to par.
Unplugged and Underperforming 580m m17x r3
Discussion in 'Alienware 17 and M17x' started by PhoenixBennu, Mar 30, 2012.