New Latitude 5470

Hello Mr. Handy,

really? the e5470 weighs the same as the e5510? the e5510 is around 6 lbs, yes?

the e5470 is supposed to be less than 4 lbs at around 3.88 lbs.

 

Thanks for the link -- always easier to call with the part # in hand!

The 6lb one is the M7510

M5510 starts just under 4 lbs (which presumably means with m.2 drive and 4-cell battery, not exactly a common configuration)
E5470 starts just under 4 lbs (which presumably means with m.2 drive and 3-cell battery; possibly also U-series CPU if the cooling is lighter.)

I didn't get a chance to get them both on a scale (and left the 5510 at work tonight) but the M5510 feels lighter than my M3800 (4lbs 8oz per my kitchen scale; 6-cell + 2.5" SSD + mSATA) and on a purely manual lift felt roughly the same to me as the E5470 (a coworker disagreed and thought the E5470 was lighter.) My E5470 as equipped is 4lbs 2oz (4-cell, 2x M.2 drives) which is really nicely close to the published weight. I'll weigh the M5510 tomorrow if I bring it home from work.

Having been used to a W530 for work (6 1/2 lbs) at my last company and a bunch of earlier E64xx machines before this one all around 6lbs, all of the M3800/M5510/E5470 feel very nicely light to me.

 

Intel Power Gadget reports the CPU power limit as 35W.

Windows 10 reinstall very smooth -- had to load a network driver manually, but everything else important loaded decent driver versions off Windows update. The only unimportant thing is the USH driver, which since this one has no fingerprint reader is kind of pointless.

 

Can this handle the CPU + battery charging? I tried a 65W PSU with my E5570 and, while it could handle the computer's power needs, it overloaded the PSU when also trying to recharge the battery. The BIOS didn't appear to have the demand management intelligence which features in my E7450 (which could run on 45W Latitude XT adapter with a warning).

The same has been observed on the E5570 (see the E5570 thread) which has exactly the same BIOS. The underlying problem is that the fan doesn't come on until well over 60C. There needs to be an additional rule in the fan control to turn on the fan at slow speed at around 60C. Somehow we have to make Dell aware of this.

Dell's starting weights almost always seem to be for an unknown configuration which has left out a few components. My E5570 weighs 2.35kg (5.2lbs) while the advertised starting weight is 2.09kg (4.6lbs). OK, I've got the biggest battery (+0.11kg on the normal 4 cell weight), 2 RAM modules and a WWAN card, but the SSD is M.2 so that's not adding much weight. Perhaps I need to strip out the smartcard reader (which I don't need but was part of the Dell Outlet package) or maybe the keyboard backlight adds weight. I was expecting around around 2.25kg, not 2.35kg.

John

 

hi john,
the e5570 is a BEAST of a machine! true portable desktop

It still weighs less than the e6430 which is about 5.5 lbs and up with the big battery.

 

My E5570 is lighter than the E6410 with big battery which I had for a while.

If it weren't for those eyes I would probably get the E5470 which offers most of the capabilities (except the 84Whr battery) with less weight.

John

 

I haven't had a chance to see, but it definitely doesn't discharge at all under heavy load .The 5470 isweight aimed with new sales for 65W (at least without dGPU -- I think the i5-HQ + dGPU models are spec'ed for 90W if I remember the configuration page on Premier.)

I may see how it does with 90W -- I've got enough older adapters of both sizes for a fleet of machines -- but other than doing a faster charge under load I doubt I'll see any advantage.

I should pay more attention to that thread. I wonder if there are still userspace programs that can turn the fan on and keep it on? I remember using one with my C-generation machines (especially on Linux -- "i8kfan") but haven't needed

Mine weighed out at 4lb 2oz (actually 4lb 1 3/4 but I suspect that's beyond the real calibration of the scale I used when dealing with that level of weight -- that's about 4.125 or about 1.87kg) .. that's only about 1/4lb/0.11kg over the published weight, and that's much closer than my last couple of Latitudes (the E6420/E6430 both advertised at 4.4lb/2kg and the real weight with a 9-cell battery and 2nd SSD in the optical bay was around 6.5 or almost 3kg.)

Overall I'm very happy with it. I'm glad my work spent their money on the pricier M5510 (and 512gb PCI-E SSD) but for just a hair over half the cost it wouldn't come close to being worth the difference for my own money, and I'm glad our security policy will let me use my personal one for the couple of weeks each quarter I'm going to be on the road.[/QUOTE]

 

I've just rerun my power test after installing the 1.5.0 BIOS. It appears that Dell has quietly fixed the problem I was complaining about. The BIOS is now actively managing the battery charge rate so that the total power drain does not exceed the PSU rating. Indeed, my E5570 is currently running on a 45W Latitude XT PSU (the size that all computer PSUs should be) and the battery is being charged at the same time. If I load the CPU then the charge rate drops substantially and the power drain at the mains socket is a constant 47W. However, the PSU is getting somewhat warm as it is being run at the upper limit of the power rating.

John

 

Just wanted to share my initial experience with a e5470 with AMD dGPU, i5-6440HQ and 1080p Touch screen, 4 Cell Primary Battery, 62W/Hr and 90W Power supply.

I was surprised when I opened it up to add a msata there is no sata port on this model. It seems if you get the dedicated graphics they remove it. I can see where it should have been on the motherboard, but I only have the m.2 slot in the hard drive bay. Kind of a bummer, was hopping to have three SSD: WWAN, M.2 and SATA. But I got a really good price so I think I will keep it.

Compared to my 7470 it weights almost 1 pound more, 3.3lbs to 4.2 lbs., so it feels heavier and thicker but at $150 less with a real Quadcore CPU I think I will send back the 7470.

7470 has 2k touch screen with i5-6300U
I monitored power usage while using chrome with a few tabs open and the two system have about the same power draw. I thought that the dGPU and Real Quad CPU would not draw more. I am sure it will under a heavy load but for day to day use it is basically the same.

I updated to latest bios on both systems and the fan is very quite on both systems.

Hope this is helpful for anyone considering an e5470 with the AMD GPU.

 

I originally posted the results to the "Precision vs. Latitude" thread, but I got the M5510 home from work and re-weighed the E5470 and the M5510. The M5510 is about 4lb 4oz, or 2oz heavier than the E54, and 4oz lighter than the M3800.