Disable Hyper-Threading on G73JH

In looking at my new G73JH-A1 BIOS (v209), I do not see any way to disable the HT.

If there is anyway to disable it, I would appreciate the help, thanks.

 

None that I know of. I hope Asus puts it in the bios soon though

 

I saw some place about using Bill2's Process Manager to turn it off, but the forum Search did not find anything about that.

 

And, if I may ask, why would you even care to turn off Hyper-Threading? (I have an idea, but would like to hear the rationale)

 

@The_Beast: Me too. I'm curious what the OP thinks they'll gain from disabling HT.

@Panama Red: Hi, you must be new to the forums and internet. Here on NBR, we have access to a nifty little tool called "search". It allows users to look for previous conversations (forum postings/threads) which contain the same questions they'd like answered! Not only does it save on screen-real-estate and avoids clutter, but it is a great way to find information without waiting for a response!

Similar services include google and bing. They're quite easy to use, simply enter your keywords into the search box, and press "search"!

Here is a great article on disabling hyperthreading, specific to the g73! It should answer all of your questions and give you a step-by-step walkthrough as well!

 

Hmmmm......I have read that games barely use 4 threads let alone 8. So with hyper threading off you could go for a higher overclock because the temperature will be lower.

But this was for Core i7 desktop CPU's and I have no idea if it would work for the mobile one. In theory it should but you never know.

 

@DCx, if you don't have an answer to the question, simply don't reply. If the answer could be found by simply searching, this thread wouldn't exist....

 

In theory (and for desktop platforms) it works like that, in reality disabling HT on the HM55 chipset really doesn't do anything but potentially slow you down.

 

DCx:
I have been Googling ever since I got my G73JH this week on how to disable HT on the 720QM. In all that searching, only once have I come across a post that stated that if you use "Bill2's Process Manager", you can disable the HT (and it was on this Website ).

No games or programs that I have use more than 2 cores, so HT is irrelevant to me, plus disabling the HT on my i7 975 desktop dropped all my temperatures by 10C or more which then allowed me to OC the i7 975 and still stay cooler than the i7 975 with HT enabled .

On the laptop, more heat is more power and that drains the battery as well as making the laptop hotter. As a result, I am still looking for how to disable the HT on the G73JH and nobody has been able to post how to do it yet.

 

You have the same "feature" built into Windows 7, it is called core-parking.

It is much more aggressive in parking cores for the laptop chipsets and does exactly what you are worried about automatically.

I know all about higher overclocks with HT disabled, which is what I was expecting to hear as an answer and one which my reply would be that to overclock a laptop you are a moron. As stated before the thermal systems in laptops are too close to max with stock clocks, to overclock means you should have no warranty due to stupidity.

Fact of the matter is that you do not need to disable hyperthreading on a laptop, do some research and you will find ther is nothing to gain. And don't try using desktop examples (such as the Clevo laptops with X58 chipsets), as they are not optimized for battery savings the way the HM55 and other laptop chipsets are.

 

I have no intentions of OC'ing the G73JH.

I just want to lower the heat output since heat is the enemy of all electronics and disabling the HT lowers the heat level as well as disabling an un-needed feature with my games and programs since none of thm use it.

 

The i7 produces barely any heat. I wouldn't worry about it. I'd go as far as to say this is one of the dumbest things I've read in the Asus Gaming Notebook Forum... disabling HT to reduce heat... LOL, lots and lots and lots of LOLs.

 

Cmon now, enlighten instead of judging and making fun of....

 

If it did not produce all this heat, then you would not need any fans or heatsinks to cool the CPU (if I understand you correctly). Plus you would be able to overclock it with no problems too with out all this heat, right !!!

A good analigy is loading you car with all the survival gear you would need to use if you ever got lost (even though you live in the middle of the city) and driving around with it every where you go because you might just need it some day (wasting all that gas with the extra weight). Sort of dumb in my opinion, but to each his own. Well, I look at have HT in the same way, I have no need for it heating up my laptop until the day I need it for one of my games or programs. Until that day, I want to turn it off and keep my laptop cooler without using the extra power for something I do not need.

The bottom line is that nobody has still been able to tell me how to disable the HT yet.

 

LOL... A good analogy usually contains proper spelling too. As for all the haters that can't figure out how to disable HT *and* use google, perhaps you'll need to read the articles that explain how to do so...

Since HT processing distribution is governed by windows, the logical cores are only used when the physical cores are under load. By disabling it, you don't reduce heat, you don't make more thermal overhead, and you don't gain any benefit.

The bottom line is that a) you have no real reason to do so (car analogy: I can't figure out how to drive with no doors or hood on my car, can you help me remove them) and b) the information is there, even on this forum, and you're unable/unwilling to look. I've personally read an explanation of how to do so (here, as the question has been asked several times), but I'm not going to waste the time finding it, for someone who is openly hostile to doing the work themselves.

With your attitude, good luck with life.

Edit: If you want to reduce heat on the g73, lowering heat on the processor is like improving mileage by repainting your car to remove the resistance from the tiny scratches caused by daily use. Try repasting, underclocking and coppermodding.

 

Ok i just joined this site so i could send u a message ziddy but apparently it doesnt have that freakin option....ANYWAYS...I just bought a G73JH myself and am loving it. Though I plan on returning it 25 days from now and getting a G73JW. Or whenver it comes out. What are your thoughts?

 

Sorry bro but I'm no moron, and in fact would very much like to see the option in the newer bios being released soon. I'm milliseconds away from holding the world record superPi and various other cpu benchmarks for this specific chip and believe that if I had this option to play with, I could achieve those goals.

 

A good analogy usually makes sense lol. Yours states that you in fact have taken the doors and hood off but can not figure out how to drive with them off, yet you ask for help in taking them off...

Just because they are asking a question that has been answered before, whether it is on these forums or another part of the internet, please do not be a jerk off. Instead, try to feel proud they come to you for advice and help them if you can.

Thanks. That is all

 

Can you give me a reference for this one?
I've been wondering about this since the i7 came out.

Here is my thought on HT. Let's say lcore0 and lcore1 are logical cores come from pcore0 which is a physical core. If 2 processes are accidentally placed on lcore0 and lcore1 there will be a performance drop. Hence the need to disable HT.

BTW, I tried google, but nothing really explain this matter.

 

just because an individual program does not use heavy multi-threading doesn't mean that the OS doesn't, windows 7 will take a lot of advantage of it.
Also the CPU very well dispatches instructions and automatically clocks itself depending on the number of threads used, so there is absolutely no reason to disable it

 

For mobiles maybe not but desktop i7 get a lot of gain from it. Overclockers can get 10C of a temperature drop and use that to push up the clocks.

For people that use their Core i7 9xx series primarily for games it is a huge boost. If you don't use a lot of multi threaded programs this is an option for those people.

The fact that Windows 7 can use it is really of no importance to them. Disabling those 4 threads doesn't really slow down Windows 7, it isn't needed for Word or a browser and if all you do is fire up a game and want to overclock for best performance then you are better off without it.

 

I just wish that this i7 720QM didn't throttle in the middle of a damn superpi or wprime...

 

Use throttlestop if that's your issue.

No one said you're a moron. Just ... incapable of finding (or unwilling to look for) the relevant information on your own. And don't you think, that if you had those options, that other people would also have those options, and your "OMG I'M THIS CLOSE" statement would no longer apply?

Yeah, that's the "logical" argument. Except windows will assign processes to pcores first.

 

Hmm interesting program, never heard of it. I'll give it a go right now and fill you in on my results. Thanks

 

Meh, doesn't really help me out at all. Maybe if it would let me set the multi at 21 instead of 13 lol

 

I thought you had problems with throttling >_<

Well, setFSB is about the only thing you can use to OC it, to my knowledge. You may want to try going down to 2gb of ram, to increase stability when overclocking, though.

 

I do, when going from 21x multi to a 18x or even lower. This program wont let me set anything above 13x, so it's useless to me.

 

Try contacting the programmer, they're on NBR quite often IIRC. Perhaps they'll do a quick and dirty fix for you.

 

Does he go by unclewebb like he does on xtremesystems?

 

Just talked to the programmer, he told me that it is a hardware limitation and there is no possible way to get the 720QM to operate at full speed on all four cores. The max multiplier we will see under full load on all cores is 13x

 

To bad, i guess its the same with the 820QM.

 

The default multiplier for a Core i7-720QM is 12. To get maximum turbo boost from one of these CPUs, you need to set the multiplier request register in ThrottleStop to one more than the default multiplier so that's why the Set Multiplier adjuster only goes up to 13 in ThrottleStop for that CPU. The amount of turbo boost you end up with is then up to the CPU based on whether your CPU is operating within the turbo TDP/TDC power limits and core temperature limit and based on how many cores are in the active state. When all 4 cores are active, you are limited to a maximum turbo multiplier of 13.

You guys really need to look at buying a 920XM on Ebay for about $425 last time I checked. You can then sell what you have to recover some of that cost. The 920XM is a beast compared to the 720QM/820QM. With the Extreme mobile CPU you can adjust it so it can run all 8 threads at the maximum turbo multiplier which is 24 for the 920XM. ThrottleStop lets you boost that higher if you like and also lets you adjust the turbo TDP/TDC settings higher. The result is that even when fully loaded on all 8 threads, it is possible to run the multiplier on each thread at 26X like this example from 5150Joker.



Quite frankly, the 720QM and 820QM are a joke compared to what the 920XM or 940XM can do. The Extreme CPUs can literally run twice as fast when fully loaded as long as you can find a way to keep them cool.

 

Wow that's a nice 32m score. What is the difference between the 940xm and the 920xm?

 

about $100 and a small bump in minimum speed

 

you mean maximum speed?