Dell Latitude E5570

thanks, maybe i'll do that.
that's really weird, when the fan runs at 2200 rpm the system is still completely silence.
bottom at 40C is also not great. 50C-60C are the cpu temperatures i get when i stream hd video with cpu on 99%.

are there any downsides to fact that the fan is not running before the cpu reaches 70C?
meaning, is it possible that the temperatures will affect the components on the long run? (usually when browsing and/or streaming my cpu temperatures are around 55C)


NR1, i have no idea. i can't say that the white is bluish or has a yellow tinge. maybe dirty effect

 

1. The white on my AUO display had a slightly blue tint which has been fixed but the colour profile created by the Spyder 4 Express. However, if the panel is not the same AUO model then the colour characteristic may be different.

An E5570 review is in the pipeline.

John

 

A new BIOS (1.5.0) was released today. I think it has changed the fan rules because I had previously seen a fan speed of 4200 rpm when running wPrime 1024M but now the temperature is stable at a fan speed of 3500 rpm. However, the lowest speed is still 2200 rpm but if the trigger temperatures have been adjusted then this might address some of the bottom heat problems under moderate usage.

John

 

Omg, it's like Christmas today all over again! Thanks John, i'll give it a try and report back if anything did change.


- update: NO. my current configuration is i5-6440hq, amd r7 370.
i've updated the bios and ran wprime. coil whine is still the same. the fan trigger was at 69 C = 2,200 rpm, and then again at 79 C = 3,400 rpm (to my opinion this noise level is distracting).
also, maybe it's important to mention that the wprime result was 371 (before updating the bios it was 351). until now the only thing that helped was a cooling pad.

 

Hi guys, having checked on the specs of both E5570 & Precision 3510, I realize that both are essentially the same machine but somehow, here in my country, the Precision seems to be more expensive... I am aware of the Precision Optimizer software but seriously anything else?

THANKS!

 

There is definitely an even faster and noisier fan spped because it was running during the BIOS update. I find the noise at 3400 rpm to be acceptable. What you are hearing is not the fan itself but the air passing through the cooling system.

Something I noticed was that the fan didn't turn off until the temperature was close to 40C. This might fix your hot base when playing videos problem provided you can get the fan running.

My wPrime 1024M score didn't get worse - still around 351. Perhaps you had something else running which was competing for a share of the CPU.

I think the price premium for the Precisions is because they have certified graphics. if you don't need that the the E5570 is better value for money.

John

 

regarding wprime score, there isn't any program that is scheduled to run on startup (i double checked it). i did the test after i've installed the new bios and restarted.

i reversed the bios to version A06, but like in the new bios version, occasionally the fan doesn't stop until the cpu reaches 40+ C. the problem is that the trigger point is around 68 C and usually the cpu temperatures are 50-60 C when browsing or streaming, so the laptop is always toasty.

my only concern right now is that i wont get a replacement that has coil whine as well.
is it likely that an ac adapter with coil whine will generate coil whine in the laptop itself? (the coil whine is louder when the laptop is connected to ac)

 

I agree that a lower fan speed with lower trigger temperature would help. We have to try to alert Dell.

The PSU doesn't directly cause any whine. It's an indirect consequence of the presence of having the computer running on the external power as the CPU power management is different when on mains or battery.

Did you try disabling C states in the BIOS? That often fixes the whine but will shorten the battery run time.

John

 

Thank you John for clarifying my doubts. Perhaps you can further advice me? I know I would want a quad core CPU for my use in Photoshop and Premiere but I am not familiar if GPU can aid in those tasks. Do you think I should go for the Precision with a FirePro W5130, or a Radeon R7 M370 in E5570 will do, or even a integrated graphics? I don't really plan to do any future engineering coursework on it but if it can occasionally use engineering software, it would be a plus. THANKS!

 

While the primary purpose of the dGPUs is for acceleration of 3D graphics, some software has been written to utilise the processing power of the dGPUs (Nvidia's CUDA is an example of this). Recent versions of Photoshop (and maybe Premiere) are also able to utilise the processing power of compatible GPUs to accelerate processing (although you may then hit other bottlenecks such as the storage read / write speed).

A simple CPU with integrated graphics will be able to run your engineering software (BTW, I'm an engineer). A quad core CPU will only give a substantial benefit over a dual core if the software is written to be multi-threaded (much isn't) although there can be some boost due to the higher CPU speed and power rating (eg my i5-6440HQ can sustain 3.3GHz under a single threaded workload). A discrete GPU can also speed up some processes. However, the AMD R7 M360 is, in broad terms, only 30% to 50% faster than the Intel HD 530 in most graphics benchmarks, so it's not a massive difference. There may, however, be situations where the performance difference could be larger if software has been written to spread the workload between CPU and GPU. In this case, integrated graphics suffers because it and/or the CPU will be throttled to keep within the overall CPU package power limit. Integrated graphics also suffers severely if there is only one memory module. For me, dual channel RAM and an SSD are higher up the priority list than a dGPU.

John