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Go to SolutionDell Venue 11 Throttling
Hi there
So I have a bit a problem with the way my Dell Venue 11 Pro (4300Y) is being throttled...
Let me explain, so it looks as if the GPU speed is directly linked to the CPU speed. This means that when the CPU is at 1.6GHz, the GPU runs at 800MHz. When Turboboost is enabled, the CPU is at 2.1GHz and the GPU is at 800MHz, so the max for the GPU is 800MHz...
Now, if this machine opens up windows explorer it starts throttling basically, which is quite ridiculous in itself.
I have managed to undervolt it a bit using the Intel XTU program, but it only helps so much...
When the CPU gets throttled, the GPU gets throttled as well(which is obvious seeing as the GPU is part of the CPU). So CPU goes to < 1.6Ghz and GPU goes to < 800MHz.
The way I understand the throttling on this machine, it works based on power draw, to stay at around 6W or something. This is where it gets interesting. With Turboboost enabled, CPU goes up to 2.1 etc, and gets throttled way back down, but the GPU usually gets throttled to a constant 400MHz. With Turboboost disabled(and therefore using LESS power), when programs are run, CPU gets throttled, and GPU gets throttled to 300MHz... WHAT?! How can it be throttling MORE when there is LESS power draw? That doesn't make ANY sense!?
This to me, seems seriously retarded. At least let us choose to alleviate the throttling somewhat!? I don't mind plugging my tablet in...
The current situation is like having this pretty cool car, but manufacturers have stopped people driving over 40km/h in it to save petrol!? Would you buy a car like that?
It throttles based on power consumption. Heat throttling only begins at 70C which the unit never reaches. I have tested this quite thoroughly. Every single possible combination possible. I would have thought that fact would have been quite clear in the detail of my post and the reasons I gave...
Yes, I would also love that option, as there is no temperature issues here, it is power throttling. Power throttling is ok, when in tablet mode or only on battery, but it would be nice, to at least be able to use the real power of the CPU, when on AC. When on AC, I dont need good battery time. Since it only reaches around 60°C, it is not even close to burn anything.
A slightly higher SDP would be nice, like 8-9Watts on AC. This would increase the performance to be a real computer. I understand, that heat throttle, if turned off can harm the hardware, but this is not really an issue here.
Through undervolting we get a little more performance, but a slightly higher SDP while on the AC woud be much much nicer, but as I see it, only Dell could give us something like that via Bios update...
Ballal Enki
2 Posts
7341
2
Posted January 7th, 2015 10:00
Throttling is gone!
See my post
en.community.dell.com/.../19576995