dell latitude 7490 lcd screen made in china

Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and PC settings.

When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines, color fade etc., it is always a good practice to isolate the LCD (screen) by running the Built-In Self Test (BIST).

Find information about how to troubleshoot and resolve common issues like blank or black screen, no video, distorted image, flickering, fuzzy or blurry screen, horizontal or vertical lines, touchscreen problems, color problems and so on when using a Dell monitor or Dell laptop.

Display or video related issues on Dell desktop monitors and laptop screens can be caused due to incorrect display or video settings, outdated graphics card drivers, incorrectly connected cables, and so on.

If the screen, icons or font size is too small or too big, changing the video settings can help resolve the problem. Select the appropriate operating system on the right to learn more about how to change the video settings on your PC.

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Versatile design. Exceptional experience. 14" business-class laptop built with premium materials. Featuring optional Intel 7th Gen or new 8th Gen processors. Operating System Available with Windows 10 Pro - for a smooth, versatile PC experience. Office everywhere. Latitude"s superior security, versatility and accessories empower the way you work because your success relies on the ability to maintain office-level productivity, wherever your job takes you. Upgraded for mobile excellence Premium materials: The unibody design provides a clean and seamless exterior with superior structural performance. Finished with soft-touch paint and an optional woven carbon fiber back cover.

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Reliable business partner. Today’s Latitude 7490 configuration packs a quad-core Core i5-8350U and conventional M.2 SATA storage, and it makes a few more cuts to deflate the cost a bit. Even so, this remains an impressive machine. How does this configuration stand up to its competitors?

Back in April, we reviewed Dell’s latest 14-inch Latitude 7000 series machine, the Latitude 7490. Unsurprisingly, we found our test unit to be overall excellent (in keeping with the trends of its forebears). While it’s true that the 7490 is primarily an iterative (rather than revolutionary) update—preserving the perennially-lauded magnesium casing, terrific keyboard, straightforward maintenance, and all-day battery life—this year’s revision also introduces a few other significant improvements. Apart from the obvious benefits bestowed by the quad-core Intel Kaby Lake Refresh CPUs, the touchpad has been greatly enhanced by the adoption of Windows Precision drivers, and the incorporation of Active Steering Antenna technology seems to have improved WLAN throughput and reliability to boot.

Our previous review unit packed a Core i7 and one of Dell’s new embedded touch displays (which are a pretty enticing alternative to the usual high-gloss touchscreens); today’s review unit dials back the CPU to a Core i5-8350U, reverts to a conventional FHD non-touch (still matte) display, and makes a few other minor changes. It retails currently for $1,709 directly from Dell, which is a few hundred bucks below the previous configuration. How does it stand up to fierce competitors from Lenovo (ThinkPad X1 Carbon) and HP (EliteBook 840 G5)? Let’s dig into the data and find out.

Our single complaint is merely an aesthetic one: namely, the penchant of the soft-touch material covering the surfaces for collecting and preserving fingerprints and skin oils. Otherwise, the Latitude 7490 remains one of the best-constructed business laptops on the market today.

The Latitude 7490’s integrated microSD card reader manages reasonable speeds—ahead of the ThinkPad T480s and not far from the Latitude 7390, but well below the ThinkPad X1 Carbon, which leads the field.

Powering the Latitude’s WLAN connectivity is the esteemed Intel Dual Band Wireless-AC 8265, which is in fact the same adapter used by allcompetitors in our comparison field. The Latitude 7490 edges out its peers, however, possibly thanks to its adoption of Active Steering Antenna technology (which we discussed in our previous review). You can read more about this particular technology here.

Absent from today’s review unit is the touch fingerprint reader that occupied the right palmrest of the configuration we reviewed a couple of months ago—along with the NFC reader. As previously mentioned, the smart card reader is also missing. Finally, the IR camera (for Windows Hello and facial recognition) has been replaced by a conventional webcam. However, the typical Dell Client Command Suite and related software are still available.

Since today’s unit trades the Thunderbolt port for a traditional USB Type-C/DisplayPort instead, Thunderbolt docks (such as the Dell TB16) won’t work. Instead, users will need to opt for a USB 3.0 or USB Type-C dock, which will still probably suffice for the average user. No accessories were included with our review system apart from a 65 W AC adapter.

The ease of the disassembly process has not changed since our last review; some eight captive Phillips Head screws secure the bottom cover, and nearly every replaceable component is available immediately beneath the panel. One gripe which still applies here is that the keyboard is among the hardest of all FRUs to replace since it’s beneath the motherboard—though this is unfortunately a pretty common trend these days thanks to the thinness of the devices populating even the business segment (which are more and more akin to their consumer-grade counterparts as the years pass). There’s also an adhesive lining the LCD panel to help keep a consistent seal between the bezel and display that’s perilous during disassembly. In the event of a broken screen, technicians will need to take care to separate the bezel and panel surround without damaging anything.

On the other hand, a notable advantage of the Latitude design is the incorporation of a plug-inDC jack rather than a conventional design in which it is soldered to the board. This makes DC jack replacements relatively painless, far easier than the full disassembly, board removal, and desolder/solder work that is required for a traditional broken DC jack.

All US Latitude 7490 machines ship with a 3-year, on-site warranty (after remote diagnosis) from Dell. Various upgrades are available, including longer warranty terms and ProSupport/ProSupport Plus packages which include North American dedicated support specialists. Please see ourfor country-specific information.

Alongside Lenovo’s ThinkPad devices, Dell Latitude 5000 and 7000 laptops consistently possess some of the highest-rated keyboards around. The Latitude 7490 is no exception; its chiclet keys are well-spaced, the layout is familiar, and visibility is very good (thanks to the black keys with white labels and a two-stage backlight that’s mostly even). Actuation force is medium and travel is lengthy—roughly 2 mm—with a good sense of feedback that supports fast typing without obtrusive noise. There is no “clatter” or unintended movement of keys. Overall, it’s an excellent keyboard and easily among the best we’ve reviewed.

Majorly improved over last generation’s version (on the Latitude 7480) is the Alps touchpad, which now supports Microsoft Precision drivers for a notably more responsive and smooth operation. We had absolutely no problems during our time with the unit; pointer movement is quick and without delay. Although it"s not quite as large as the touchpads from some competitors, we didn"t struggle much with real estate for the typical gestures, which are reliably interpreted. The two buttons below the pad are quiet yet springy and comfortable for long-term use—far better than most any integrated buttons.

Today’s Latitude 7490 retains the 1920x1080 resolution, but exchanges the embedded touch display of our previous unit with a conventional IPS, non-touch, matte panel. Subjectively, color seems vivid, contrast appears strong, and brightness is fairly good. Our measurements revealed an average brightness of 294 cd/m²—ever-so-slightly below that of the embedded touch model—and a very good contrast ratio of 1342:1. While the ThinkPad T480s and the EliteBook 840 G5 in our comparison table only achieve results slightly above these, the X1 Carbon absolutely blows them all away with an average brightness of 533 cd/m²—and the 840 G5 offers a superior FHD IPS display option with a mind-blowing 630 cd/m² result. While today’s screen is certainly nice enough, Dell should consider stepping up their options for the next model to stay in competition.

Color coverage is good at 97% of sRGB and 62% of AdobeRGB. This is roughly in line with the performance of HP’s EliteBook 840 G5, which just barely edges it out. However, the X1 Carbon runs away with the crown with a whopping 89% of AdobeRGB; the 7490 manages to cover just 64% of its displayed color gamut.

Out of the box, the 7490’s color accuracy measurements were only average. Using CalMAN, we recorded an average ColorChecker DeltaE2000 of 6.07 and a maximum of 10.58 (White), along wide a Greyscale DeltaE2000 average of 7.3. The CCT Average of 7269 is also on the cool side, and our Total Gamma reading of 2.061 is below the ideal value of 2.2. A bit of calibration works wonders; afterwards, ColorChecker and Greyscale DeltaE average values dropped to just 1.67 and 1.8 respectively.

ℹDisplay response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.↔ Response Time Black to White

Reflections are no problem for the Latitude 7480, which—thanks to its good brightness and contrast and anti-glare finish—is usable in all but the brightest of environments. Viewing angles of the IPS panel are excellent.

All Latitude 7490 machines pack Kaby Lake Refresh (8th generation) Intel CPUs ranging from dual-core Core i3 options up to quad-core Core i7 SoCs; all of the available chips operate under the constraints of 15 W TDP. While our previous review unit featured a Core i7 and 8 GB of dual-channel memory, today’s machine dials it back to an Intel Core i5-8350U and 8 GB of single-channelmemory.

As it often does with the recent Latitude models, LatencyMon reported some issues with DPC latencies—which could translate to issues streaming real-time audio and video. Performance is not diminished while operating unplugged, however; a second run of 3DMark 11 on battery power resulted in a score of 1771, which is close enough to our original score to dispel any concerns.

While the 8th-generation Intel CPUs all tend to experience an initial short burst of performance before subsiding somewhat, the Intel Core i7 in our previous 7490 review unit still distances itself from the Core i5-8350U in our CPU tests—ahead by some 9% and 15% in the Cinebench R15 multi- and single-core tests, respectively. After the first few runs, average multi-core scores are closer to the 530 mark in our tests—again, below the less-consistent but still quite a bit higher (roughly) 570 we received over the long-term from the Core i7 model.

Compared with the rest of its peers, the 7490 roughly matches the EliteBook 840 G5, but it’s well below both the (larger) ThinkPad T480s and Core i7-equipped X1 Carbon. The Core i7 model fares better here, so if more power is needed, we’d recommend springing for that one. Naturally, however, for most users, today’s specifications will be perfectly sufficient.

Predictably, storage speeds are well below those of the previous 7490, since this machine steps down to a Toshiba M.2 SATA drive from an NVMe Samsung PM961. Thanks to this, today’s unit is by far the lowest-scoring of all those in our field. Nevertheless (as we alluded to above), once a certain level of performance is reached, most users aren’t likely to notice any difference. Plus, the replacement/upgrade procedure (as we covered previously) is simple—so if cost trumps top-end performance concerns, this would be a logical place to pull back.

Today’s Latitude not only dials back the CPU (as discussed above), but it also downgrades the RAM configuration to single-channel—which does in fact affect the performance of integrated graphics. As a result, our scores are some 16% to 22% below those of the 7490 we reviewed in April, and near the bottom of the pack overall (which the X1 Carbon dominates).

Needless to say, this isn’t enough horsepower to run any modern games at even low settings—but the Latitude 7490 isn’t a gaming machine. If graphical performance is of any significant concern, we’d advise springing for the higher-end configurations (with both Core i7 CPU anddual-channel memory) if possible.

The Latitude 7490 never was a loud machine, and it’s even quieter with today’s less power-hungry configuration. By slim margins, it’s in fact the quietest machine in our field, topping out at just 40.2 dB(A) and averaging under load a mere 29.9 dB(A)—barely above the ambient noise measurement of 28.2 dB(A). Like all of its competitors, while idling, the fan rarely even engages; and even when it does, noise levels barely increase to a paltry 29.9 dB(A).

The two down-firing, bottom-mounted speakers in the Latitude 7490 can’t hold a candle to those of the older (and thicker) Latitude 7000 models such as the 7440 and 7450, but they’re still better that most other direct competitors. Volume is merely average at 77.31 dB, but mids and highs are balanced and at least inoffensive in terms of their linearity. Bass, as always, is mostly absent.

dB(A)0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2036.241.636.22534.73734.73134.633.634.64034.434.234.45033.233.533.2633234.1328032.233.932.210040.130.440.112544.229.244.216047.729.447.720049.427.649.425054.227.454.231556.226.856.240056.725.856.750057.425.757.463059.925.159.980064.824.564.8100068.324.468.3125062.724.262.71600672467200066.923.966.9250068.924.168.9315064.42464.4400058.623.858.6500065.223.665.2630063.823.563.8800066.223.566.21000065.323.465.31250057.723.457.71600062.223.562.2SPL77.336.377.3N40.52.740.5median 62.2median 24.2median 62.2Delta5.81.45.834.83330.328.135.438.130.332.226.631.825.827.624.725.123.926.524.833.424.141.923.94821.85120.155.318.261.117.366.61770.316.578.416.57515.868.915.770.615.467.615.569.21672.916.268.616.7701771.217.272.217.470.917.365.817.256.228.983.61.258.7median 17.2median 68.61.88.6hearing rangehide medianshow medianPink NoiseDell Latitude 7490Lenovo ThinkPad X1 Carbon 2018-20KGS03900

Partially because of its lack of NVMe storage, the Latitude 7490 is an extremelyefficient device while idling. We measured just 4.7 W average, with min/max values of 2/5.7 W. This is the lowest of any machine we’re comparing today. Perhaps even more impressive is the measured maximum of 38.9 W—well below most other machines, and even nearly 5 W below that of its Core i7/NVMe-equipped predecessor.

We recorded a battery runtime of 9 hours and 8 minutes in our standardized web surfing benchmark, which is slightly above competitors like the ThinkPad T480s and X1 Carbon, and well above the HP EliteBook 840 G5’s 7 hours and 27 minutes. The Latitude 7390 (with its slightly smaller screen) easily takes the cake here, however, with a terrific result of 11 hours and 4 minutes.

Once again, we come away from a Dell Latitude 7000 series machine thoroughly impressed. Along with Lenovo’s ThinkPads and HP’s EliteBooks, the Latitudes stand head and shoulders above the rest of the business competition. They’re thoughtfully designed, smartly updated, and carefully revised. While the 7490 remains a mere iterative update to the 7480 in every sense of the term, it truly leaves little to be desired. The case is sturdy, subdued, and attractive, the weight is manageable, the input devices are top-notch, performance is very good, battery life is lengthy, and it’s a quiet companion. The few areas of improvement we’d like to see are display options to match its competitors, improved thermal management, and better speakers.Once again, we come away from a Dell Latitude 7000 series machine thoroughly impressed. Today’s $1,709 Latitude 7490 absolutely deserves consideration by anyone in the market for a premium business laptop.

Today’s less expensive configuration lacks the Core i7, NVMe storage, touchscreen, and some of the biometric and security features of April’s review unit—but it’s also only $1,709 (as compared to over $2,000 for the previous model). Those who don’t require dual-channel memory or any of the previously listed omissions would find little to complain about in this setup. CPU performance is roughly between 10 and 15 percent below that of the Core i7-equipped unit, and GPU performance around 15 to 22 percent lower (though this is also a factor of dual-channel memory in our i7 configuration). As such, we’d suggest that upgrading to that SKU only makes sense if top-end CPU and GPU performance is of the utmost importance. Alongside the

the touch screens use different lid covers compared to my fhd. it would be more involved to upgrade to touch since lid cover change out will require moving camera and antennas over to new lid.

ISSUE 1: 7490 does not allow booting from a non efi (secure) internal drive. this means legacy bios doesn"t work for internal ssd. it is no longer possible to move an ssd with ubuntu from one machine and plop it into the new machine. i don"t know how to install ubuntu via efi secured. yet.

ISSUE 2: I"ve been looking for a laptop upgrade from my e7450. the e7x50 line by dell used msata which is a different form factor. it appears like there is enough room in the 7490 to use an msata to m.2 adaptor.