This behavior was fixed in A07 for the 1645 when the engineers discovered a problem with the BIOS algorithm that did not allow the CPU to recover from induced C and P states. I will make sure to call out the same behavior exists on 1647 when we meet next week. Thanks for the heads up.
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For instance, my 2ghz C2D 7300 loves to idle around 800 or 1200, I almost never see it go up to the full 2000. Throttling is only abnormal when there's a heavy load.
Edit: I guess I should ask, does it stay low after the gaming session no matter what you do, even something like prime 95? -
I'll PM you right now (if I have minimum posts). -
@Bill: OK, thanks..
@emetchar: At first I thought that, but no. I confirmed this by stressing only the cpu (no gpu) which would theoretically increase the frequency because of the demand, but this wasnt the behaviour, its just stuck there -
The tests I posted yesterday suggested no difference between AC (with or without TS) or battery power. This was with both Crysis and Dirt 2 which are both about as demanding as you can get. Bill himself has mentioned that dirt 2 still throttles but strangely I found no evidence of that
My feeling is that the laptop now operates as it should in real world scenario's with the currently available software. What the future holds though I could not say.... -
Hence at 1080p, the 4670 will be the bottleneck in the future.
Conclusion
GTA 4 is cpu intensive at 720p and gpu intensive at 1080p. All games are.
But GTA 4 is not a good game to benchmark since it performs just like Microsoft FSX(mediocre fps no matter what).Attached Files:
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The 1645 doesnt seem to throttle while gaming but the screen blocking exhaust does provide a performance drop during gaming and will ruin the beautiful WLED slowly. -
Sorry for posting this again but I think its important
From siphen we have the magic number at:
A07- 110W AC max allowed. - ~79.2W DC Side
which is well below 90W DC.
To perform as advertised,
this laptop needs around 100W DC instead of what A07 gives us which is around 80W DC.
Or another way to look at it from the a/c side of things at the wall outlet,
this laptops needs around 138W AC instead of what A07 gives us which is around 110W AC
The reason Dell doint want us to know how many watts A07 delivers could be that it would show that the laptop still underperforms
Kill-A-Watt is showing 110W MAX allowed wattage draw from the wall with BIOS A07, this is 5-10more W draw allowed,
A03- 90W AC max allowed ~64.8W DC Side
A06- 100W AC max allowed ~72.0W DC Side
A07- 110W AC max allowed. - ~79.2W DC Side
This does not take into account the voltage modification that was made between A03-A06
A07 - TS enabled - 138W max draw AC . ~99.36W DC Side
Tests were done with prime95 and furmark.
So, - to sum up, TS allows 20 more Watts DC Side to be used by the system if its needed, A07 doesnt. -
http://www.energystar.gov/ia/partne...International_Efficiency_Marking_Protocol.pdf -
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@Bill, you keep talking about the P and C-states. Yes, they have been made better and this can be proven today because the system still throttles. Throttling cycle is much faster but this alone already proves that there is artifical Dell throttling still happening not related to temps or P and C states.
I'm at Sydney and it's summer. This is as hot my laptop will ever get and I reach 72 CPU temps at max. The throttling that still happens is not temp related. The multiplier should not go below 12, yet it does.
If you answer the question that you say the techs won't allow you, how much of the 130W adapter are we using (numbers have been provided by kill-a-watt already), it would explain it.
It's not a conspiracy theory, it's reality.
I haven't even touched the subject of GPU being artificially throttled by Dell at 83/84 degrees. This has been proven by many people and on other Dell laptops running a lower GPU (which subsequently received a fix).
GPU throttling happens by dropping the 1.2V to 0.9V which anyone can monitor (level 1). As soon as it goes below the temp threshold, it rises back to 1.2V and normal 3D clocks are back (level 2)
This is why people can over-write via Rivatuner. It does not allow Dell to drop it to Level 1 (drop Volts and clocks).
The CPU throttling is there and is related to how much power we are allowed via 130W adapter. The GPU throttling is there and is related to your thermal setting being too low to induce this throttling via dropping the volts and consequently the clocks. -
Hi Bill,
Honestly, you can consider the Throttle issue is solved, and the others can keep on arguing forever. Well, I don't feel that I have enough computer knowledge to judge on this point. However, what I do know is that the system is hot!!! and I am truely afraid that in a year and half, the screen will be melted by the heat from the vent everyday. However, by then, all our warranty will be expired, and we will need to pay like $700 fix a problem that was not caused by us. Do you agree? It is the same thing with the RGB screen issue. You mentioned that you will do something for the RGB users. I guess this will be allowing couple more watts of power consumption. But like all of us, I have a feeling that they system was not designed for 130w at all, and by allowing more and more power consumption, we are only risking the lifespan of the system. And if this is true, who can help us when the system dies in 15 month when we have no more warranty left. Do you agree?
Finally, if the heat or vent issues indeed will be looked into, do you have a rough ETA? are we talking about weeks or months?
Thank you for being here helping us. -
Here's a tip that might be useful for some.
1. Click on "User CP" near the top left corner of the forums page.
2. Click on Buddy / Ignore Lists
3. Add " quietCat" to the Ignore List, press Enter and click on Save List.
4. Enjoy your Forum Experience.
How wonderful that I won't be able to see his response to this. If any. -
@error
As someone who has to wrap their laptop up in blankets and roast it for an hour because the video card keeps de-soldering itself, I'm not terribly phased by thermal throttling. I don't see 85* as something unreasonable to stop the video card at. I mean, my desktop 8800gtx doesn't even go above 87 on furmark. -
I really don't think we need to care about how much power the laptop is pulling or allowed to pull. We just need solutions.
I think there are two main problems now. When CPU and GPU are pushed to 100% we see throttling. Other laptops with similar specs are able to be pushed to 100% without seeing the issue. I have to say that I have not experienced CPU throttling while gaming.
The other problem is gpu temp. When around 83-84C the gpu clocks down until temp drops. Is that temp arbitrary or is it a point at which there will be harm done to the laptop.
There seem like there are a lot of reports of poor performance but no one is stating if they are logging clock modulation or if temps are high and gpu throttling or if they are expecting to run at max resolution with max quality and max AA.
I can say that if I run some games at max resolution and max quality that performance is horrible. Nothing to do with throttling. The 4670 has limits that is why ati and nvidia release new chips every year.
Seems like all of the 1645 threads are going downhill really fast. If you want things fixed, state the config and the problem. -
People are buldozing their way onto this thread claiming they are suffering from throttling during gaming without any proof to back up their statements.
Listen people, the only way to prove you a suffering from CPU throttling is to run those benchmarking tests with or without TS to see whether you see variation in your FPS results between the two. If not then your 'lagging' is due to the limitations of the GPU, which lets remember once again, is just a decent mid range card.
I (some might say stupidly) booted up crysis while the laptop was on my lap last night and I definitely suffered from GPU throttling. I was getting my FPS dropping from 30 to around 10 for periods of around 5 seconds every minute while the GPU throttled back and then jumped back into life again. This cycled for a considerable period of time like this. If you're suffering from GPU throttling due to excess temperatures your going to know about it, the signs are obvious. If its a constantly low FPS your suffering from, then I would point back to the previous paragraph and suggest that for the game/settings/resolution you are running, the 4670 simply isn't up to the job. -
This is beyond everything, coworker of mine called in DELL today to inquire about 130w power adapter replacement and was told latest bios A07 does not require larger power adapter than 90w.
He spoke with regular rep then got transferred to his superior and have gotten the same response. He was trying to convince and mentioned that he read in forums that Bios A07 must be used with conjunction 130w adapter but even so he was rejected replacement. Eventually the manager or whoever he spoke to told him that there other problems associated with 130w power adapter so it does not serve it's purpose.
DELL might send replacement at its own discretion but there more tests needed to be done.
Dell-Bill can you comment of any known side effects of using bios a07 with 130w power adapter?
This is getting interesting day by day but then in the end this might just explain all the delays with releasing A07 bios.
Link below with video of DELL XPS throttling
http://www.youtube.com/watch?v=CoLw-DkEqnQ
I urge everyone to create video(s) and post them to show that the problem still exists even with the latest A07 bios.This way people with higher credential at DELL become convinced and resolve this issue once for all!
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If the engineers configured the GPU to throttle at 88C or higher I wouldnt have to run Riva Tuner.
Bill, can you add that to the next conf call with the engineers, the GPU Thermal Limit? Would really appreciate the look into it. -
Quiet Cat, It may be time to lay this argument down to rest. I'm not even sure what the point is anymore. But please lets let facts speak for themselves. Needless speculation doesn't help anything.
I'm also afraid that Dell probably isn't going to do much more about this problem. I hope they fix the GPU thing because that really is a deal breaker IMHO. Which brings us full around. System still throttles when only playing a game and cuts performance to too low a level. -
I will say this about the killawatt findings. Based on what people are concluding the total watt draw to be on the DC side using killawatt readings, it's not accurate and hence has no bearing on the total DC draw. Notice I said "based on what people are concluding." Someone may come in and actually do the math the right way and post the number (whatever the right way is. I'm nowhere near qualified to figure that out), so I will not be commenting on the DC draw any further. I am simply not authorized to. I need my job, so I'm just simply not going to do it.
When I have made reference to conspiracy theories, it was strictly aimed at the preposterous idea that we shaved off wattage to bolster our Green portfolio. Please, read the context of the post before you assume I'm calling throttling itself a conspiracy theory. That idea is just ludicrous, and I find it hard to believe any reasonable person would lend credence to it, but life is a mystery, right?
GPU clocking is a different issue than the topic of this thread, right? Correct me if I'm wrong. I was just thinking this was a discussion about CPU throttling, but I guess the title does say "Throttling" without specifying. Either way, it's a valid concern, and one I will take to the engineers next week.
Just to be sure, you are saying you are on A07+130W and your CPU throttles in games, right?
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Charles P. Jefferies Lead Moderator Super Moderator
I deleted a large number of posts (over three pages worth) of senseless bickering/arguing.
Let's continue with the topic at hand . . . thanks. -
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Yay!!!!
Back to our original thread! -
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Well it is a sad day. After months of waiting and reading every last post on this thread and the previous one (man has that been a time consuming process!), I have at last made the final decision to return my and two other 1645's that we own and order the latest HP Envy's.
I own a small-medium sized business (70 staff) and have personally used Dell laptops for 5+ years and we have used Dell gear throughout the company (laptops, desktops and servers). Prior to this laptop I absolutely swore by Dell and recommended them to all my friends. Every bit of Dell kit throughout the company to date has functioned pretty much flawlessly.
We ordered three of these machines for senior management, waited for ages for them to turn up and then waited another few months hoping desperately for a full fix for all the issues (cpu & now gpu throttling, regular crashing, screen problems, problems with the heat vent etc). But unfortunately today I decided its time to swallow my pride and go the HP Envy route.
When I stand back and look at the big picture I cannot get away from the feeling that this laptop is inherently flawed in a number of different ways. There is no doubt that many good people at Dell are trying desperately to complete various tweaks and fixes so that the machine functions at a half decent level of performance. But there are just too many indicators that this laptop in the long-term is going to be a lemon. atlstang nailed it when he said (paraphrasing) - it seems the 1645 was designed around a 90w power supply and this will most likely be the crutch that haunts the 1645 for as long as its out.
To Bill, atlstang, unclewebb and all the people on this thread who have spent so much time testing, writing software and lobbying Dell people - many thanks for all your efforts. I have had some bad experiences with HP kit in the past so fingers crossed that I don't swap one nightmare for another!
Will we still buy Dell gear? - absolutely. Every manufacturer seems to have its screw-ups - we have had our fair share with other manufacturers - HP and Acer to name just two. But my confidence in Dell has definitely been dented somewhat by this experience. -
Bill,
We all appreciate your assistance and involvement with the 1645, I almost wish at times I could talk with the engineers directly, but thats just me. I would like to request that you please dont get yourself stressed and over exerted with this forum, Im sure your family has to deal with the fact that your distracted with it and that for sure is seen with the amount of posts you do daily after hours.
Id hate to see problems in the family get caused from working "too hard" and then it start affecting your work. We would hate to lose you as your one of the only contacts that keeps in touch with us as much as you do!
Just my 2c
BTW, Ill provide any testing details you might need from me so feel free to message me with any requests what so ever. -
@sv0rd,
Totally understand where you're coming from, and on behalf of Dell, I apologize for the frustration. Please feel free to hit me up on Twitter (@BillatDell) or via PM here if there is anything I can ever help with.
@Siphen,
Thanks a lot for the kind words. I'll be coming at you in PM some time soon. I have this idea that I'd like to run by you and some other folks here. I need to get my ducks in a row first. -
@Dell-Bill
Thanks heaps - it means a lot. Your handling of this situation has been nothing short of exemplary. Just yesterday I was talking with my customer service manager here and using you as an example of doing an amazing job of managing a crisis situation and going the extra mile for your customers. (He is one of the other managers with a 1645!)
My hat is definitely off to you and if you were in my employment you would definitely be receiving a bonus and a bucket load of respect. -
I just received my 130W adapter (only took a week- amazing for Dell - thank you). It is a PA-4E Family, DA130PE1-00 Dell P/N JU012. They sent it with a Dell P/N FX429 cord adapter. The power supply is 1x3x6 inches. Problem is the cord adapter won't clear the edge of the supply. Anyone else having this problem. I guess I could trim the edge or force the cord in. Is anyone else having this issue. I would like to start running some tests, but I need some simple advice on the cord.
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Even I am going with the same frustration. I did say that the games are working good but I will say Throttling is 99% Fixed.
My first concern is the awful customer service we in India were provided. I am telling you, It felt like those techs work for dell for the sake of it. They treated us the worst they can and kept arguing and Active Listening was missing. THEY JUST KEPT INTERRUPTING! Alas my 90W Adapter is gone and its a hell to move along with the laptop now. I would really appreciate if you can look at this issue and can we by any chance get our 90W Adapters back.
The other thing I want to say to this Community of XPS owners are that we all know now, This laptop aint Alienware so we have to balance the graphics settings to play it smoothly. If we really wanted games to run at Max settings and 1080p then we should have got Alienware m15x. The laptop aint that bad but the bottleneck is its ATI 4670 1GB Graphics Card. If it had a ATI 5000 series with a better cooling system. It could have been one of the best gaming laptops.
Bill for all the extra effort you have done for us by over-timing and listening to our queries, I Bow Down To You, You simply Rock! -
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I just hope my new XPS 16 won't have too many issues. This thread is scaring me after having a Sony F with issues. The HP Envy is just a bit over priced with the same features or I would have gone that route.
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ThrottleStop url does not seem to be working. Just hangs, and timesout. Any other link?
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@BILL
A07 eliminates CPU throttling. Good job!
But we still need to take into consideration GPU throttling.
Running 3 consecutive benchmarks(approx 40 seconds each) of GTA 4 saw the GPU temperature reach a peak of 78 degrees celsius.
At 1080p, games are more GPU intensive than at 720p. Hence GPU usage is more. You can check my benchmarks I posted yesterday for this.
Hence the GPU is most likely to throttle when gaming.
Just imagine, for 2-3 mins of gaming, peak gpu temp is 78 degrees
People game for 2-3 hours straight, obviously there will be a threshold on the GPU temperature causing it to throttle.
Also in A07, the fan kicks in late. The fan kicked in only midway through the 2nd benchmark. -
Heres the gpu-z file log
Attached Files:
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bipul_fx whats your specs please. As its one of your logs that shows a bit of cpu throttling still that you posted earlier here. Curious if that is still happening to you.
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GPU throttling has been in place for ALL and I mean ALL Dell notebooks ever since my first Inspiron(I have 8 laptops from Dell). When it passes the thermal threshold thats what happens... There are 3 things to do to prevent it or delay it:
1) replace the thermal paste and put AS5 thermal compound.
2) Get a freaking notebook cooler if you're going to game, I recommend NC2000 Zalman
3) Which has always worked for me is to lock the clocks(or even overclock *evil grin*) with Rivatuner it may reduce the lifetime of your video card but I think its worth the performance.
You aren't going to get anything from Dell regarding this matter, if they do it I would TRULY be surprised! They fail in this department bad and have always failed in it but I came to terms with it. -
GPU downclocking is on my list. First I've heard on the late fan. I'll put that on my list as well. All the engineers are on holiday this week, so we will not hear more until next week.
A post a few pages back indicated the GPU never got over 86 with Rivatuner working. I think without Rivatuner it's clocking down at 84 or so. I think I can work with the fact that it seems not to exceed 86. Can you confirm your max GPU temp with Rivatuner working, XmDXtReMeK? I promise I won't call warranty abuse on you if you tell me. -
ThrottleStop 1.93
http://www.sendspace.com/file/dtjos2
The FileDen site craps out once in a while so it should also be available here. -
Please pass a feedback to India Tech Support. I dont get why should Indian customers return their adapters when Others dont.
Also can u or someone please tell me which one is recommended the brick one or slim one with 1645. The bulk is not an issue with me. I dont carry my laptop often.
Thanks for the good work done by Dell/Bill.
I bought Dell and will buy again cause I believed that Dell support(warranty cover) is best in India, I think I am not disappointed but I still think that the tech-support team should be a lil more conisderate. I talked to 2 of them the one who shipped me the adapter was fine. but thats when I didnt argue about anything as I know its useless to argue with someone who himself is less knowledgeable about the issues than the customer. lol.
I really think that for people who have seen a troubled laptop(which might have reduced the health of the system) something shud be done for the warranty cover.
thnkx.
also jus like the throttling issue. teck support wont even acknowledge tht the heat vent is an issue. and says that it was designed that way cause its meant to be that way. lol.
I think we shud at least be guided to some one who is counterpart to bill in india. -
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Bill its late night right now, I use a laptop cooler now(nc2000), I smartened up after my experience with my Inspiron 1520(used rivatuner solution) so I don't have gpu throttling problem. But I can run tests for you tomorrow if you like and post the results...
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Sure not a problem. Ill verify if there is any gpu downclocking(I recall having an fps dip once after 4-5 hours of gaming with my cooling pad but that can be anything) tomorrow and if there is ill check what temp it is(without cooling pad).I will also use rivatuner and stress the system a bit and see how far up the temps go and verify the peak temp(if it goes too high ill stop).
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Well guys, it must be Friday!!! I got a call from Dell today and left a message informing me that they had sent out the wrong power supply. I could not decipher the return phone number and ended up calling the general number and waiting for 20 minute with some God awful musics churching around my head. Then my mobile rang and to my amazement it was Dell calling back to explain that she was sending me out the correct power supply by 5pm next Monday Eastern Australian time. I rang off and then my son came in with a packgage from Dell. I opened it and was greeted by a return sache and note telling me to send back my old power supply or I will charged forthwith! Mmmmmm. I carefully pointed DELL support to this group and then patiently understood that, even though it was clear that the solution was a 130w power supply, I had to wait until it was sanctioned by the DELL God's above (I was talking to Angel!). Then all was GO GO GO! and a new 130W adapter was on its way. Two days later it was confirmed that it would be delivered to my home by 5pm Thursday. No package came. In fact it was delivered to another location and the specific address information was ignored! Mmmmmmmm. So I was looking forward to finally getting down to using this notebook at its best (or nearly best!) only to be again dissappointed and wondering what is going to happen next.
You know, I really do not feel inclined to send the 90W Adapter back. I am moving house next week and I think I will just forget to inform DELL of my move. If I stuffed up as much as DELL has in its support and logistics then I would not have any clients. Someone should really write this debarcle up in a business journal as an example of how off-shore service models are destroying the reputation and good name of companies. Truly, if I had to pay a bit more to get trouble free service then I would do it. Wait a minute! Didn't I do that when I bought my DELL!!
The final part of my Friday rant. We pay for extended warranty and it seems we are mad not to because computer and notebook are very unreliable. Yet if you sell 1,000 units @$250 for extra warranty = $250,000 extra profit. I very much doubt that the failure rate is 250 in 1,000. Extended warranty simply means that it is a easy way for a company to increase profits by making customers pay for their poor design and the unreliability of cheap parts; and pocketing the remainer. -
@Renaldostheold,
Sheesh. If a pc made me that unhappy, I'd just return it. I'm pretty sure someone made a mistake along the way somewhere. OK. Maybe a few mistakes. Sorry for the frustration. Hope it works out for you.
S-XPS 1645 Throttling Info. and Updates
Discussion in 'Dell XPS and Studio XPS' started by atlstang, Dec 27, 2009.