Latitude 7450 Owners' Thread

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I have trouble install the last two drive, IRST_Driver_Intel_A12_WIN_VNRFH_f6flpy-x64-SETUP_ZPE and ControlVault_Setup_2MYJC_A37_ZPE. And one device left without drive.
Whats your E7440's idle temperature?

 

I noticed to play a 4k clip smoothly in win7, the cpu needs to be boosted to 2.9ghz, which shoot the temperature close to 85c. However in win10 I did not check the clock but it was about 65c. I am not sure if it is because win 10 has some decoder that plays the clip better.

 

You shouldn't need the IRST f6flpy driver - it's for creating a disc with the driver to be used during Windows installation. And do your have the fingerprint reader? If not, ControlVault may be irrelevant. The unconfigured device could be something like the SD card reader, or the smartcard reader if you have one installed.

I don't have a record of the E7440 idle temperature but it's around 45C on my E7450.

I've not tried playing any 4k movies, but I would have expected this would be rendered by the GPU. Do you have a hardware / software option in the player? Hardware should be GPU, software will be CPU.

John

 

So the rapid storage tech is for installing windows?

I have installed everything according to the sequence dell provided , other than data protection softs. I do have finger print and i noticed there are two drivers\softs related . I install the first one no prblem. but the last was not a exe patch and the finger print reader is recognized. The last one is tricky could be the smart card reader.

 

I will check the decorder. I wonder if you can still force to allocate lots of ram for your igpu? I wonder if it will help to give it max ram. It helps in the old time.

 

so the Broadwell version doesn't run any cooler than my 7440 haswell? I can't find an dgpu version at a reasonable price so I'm just going to pick up one of the many e7450 with intel gpu. I've actually found the intel gpu performance pretty good and rapidly improving.

 

The drawback of the iGPU E7450 is that it has the same fan as the E7440 and that fan gets noisy when it has work to do. The dGPU version has a better quality fan which is more efficient at moving air and less good (bad) at creating noise.

Comparing power and temperature between the E7440 and E7450, the latter is unlikely to run cooler under low usage because the fan rules in the BIOS will stop the fan running at about 45C. The only way to compare would be to put the E7440 and E7450 alongside each other under the same usage from a cold start. The E7450 will probably run for longer before the fan comes on.

Both systems have a nominal 15W CPU package so will produce very similar heat when under load although I would expect the newer CPU to run a little faster (but subject to Intel's binning of CPUs). A more meaningful comparison is how long the two machines will run on battery under the same usage. The newer CPU's more effective power gating means it will win under light usage.

John

 

Thanks, I've found the jump from Arrandale to Sandy Bridge was huge in terms of thermal, speed, battery life. After that Ivy Bridge, Haswell, and Broadwell have had very little improvements to speed, thermal, battery life. I haven't tried the new skylakes yet.

 

Hello everyone!
Bougth the laptop (FHD non-touch, dGPU, i7, 8gb, using Win7) just recently. I really like it, but found (and solved) some annoying problems already. I'll mention them in case solutions might help someone.

Solved problems:
1) After some time (about a day) I started to notice that something's using up the CPU shortly after the laptop boots up (50-100% usage from time to time!). Deleted preinstalled McAfee antivirus and Intel wireless PRO or something and overloading suddenly stopped. Also, removing Intel's wireless program seems to have stabilized my wifi connection; with this program running I was experiencing regular disconnects from my home wifi. Internet suggests I'm not the only one experiencing this.
2) When it's completely silent around I could hear a high-pitched electrical noise presumably emitting from the fan (it was off at that moment btw) that was slowly driving me crazy. On some page I found an explanation by Dell that this is caused by some piezoelectric effects or something. Don't know if that's true, but turning off bluetooth worked.

Unsolved problems:
1) Even after getting rid of extremely high CPU usage I still find it overused. For comparison, on my old HP pavillion dv7 6053er in idle CPU's loaded by ~0-1-2%. There are short peaks (max of ~30% if I keep opening tabs in Chrome). I also can load up CPU by 2% by moving the cursor around fast.
In contrast, on dell laptop CPU is
-used appox. 7-10% when just moving the cursor around.
-might be peaked by 66% when opening tabs in chrome and by 100% if those are not just empty tabs, but web pages loading.
Also once I got 30% CPU load while in idle, and using process hacker found out that svchost was using it up. Killed the process and the problem never reappeared (yet).
-----
Oops, got it again. Will be checking what services are responcible for this.

However, all abovementioned doesn't result in freezes or lags, laptop runs smoothly.
Did anybody else experience something like this? And yes, I scanned my fresh install for malware and found nothing.

2) There's a slight backlight bleeding at the bottom of the screen. Completely unnoticeable most of the time, but clearly visible during boot and when watching movies. Applying slight pressure to the lid results in this bleeding appearing on the other parts of the screen as long as the force is applied; maybe this is the result of display being fixed too tightly, not the panel's quality?
Will Dell replace the display in this case and is there a possibility the new one won't have BL bleeding at all?
I'll try to take a photo of it when it's darker.

Also, is there a way to manually switch between dGPU and integrated graphics to save battery (like on that HP I mentioned)?

Thanks in advance for any comments.

 

Svchost.exe is a process which other programs / processes use - see here. You have to figure out which other program / process is keeping that particular instance of scvhost busy. I would try using Process Explorer.

You may have an Nvidia GPU icon in the system Tray area (if not, thensearch for the Nvidia control panel - the icon is useful because it shows when the dGPU is active). Right click on the idon and there is an option to customise which programs use the GPU. This doesn't directly turn off the dGPU but lets you try to influence when it is used. Sensibly, this is only for the tasks where it is more efficient than the iGPU (3D graphics) or CPU (CUDA / PhysX). If these tasks get carried out in a shorter time then there can be an overall power saving even thought there are temporary bursts of higher power consumption.

John