HP T740 Thin Client Review TinyMiniMicro with PCIe Slot

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HP T740 Internal Hardware Overview

Getting inside the system involves removing the rear faceplate, hitting the green tab (shown above) then popping off the lid. Inside, we can see a fairly interestingly laid out system:

HP T740 Thin Client Internal Overview
HP T740 Thin Client Internal Overview

On the top of the system we have a big heatsink and fan cooler assembly for the AMD Ryzen Embedded V1758B processor. This is a quad-core eight-thread processor with Vega graphics and is quite capable.

HP T740 Thin Client Internal Side 2 CPU Side
HP T740 Thin Client Internal Side 2 CPU Side

In terms of memory, we get dual 4GB DDR4 SODIMM modules, but these are upgradable for those that want more memory.

HP T740 Thin Client 2x 4GB SODIMM Memory
HP T740 Thin Client 2x 4GB SODIMM Memory

One can see the PCIe Gen3 x8 riser below. That is where an expansion low profile card can be installed.

Next to the memory modules, we get two M.2 slots. There is a M.2 SATA slot as well as a M.2 slot that can either take eMMC or NVMe SSDs. That provides a decent amount of storage flexibility, although it is under the PCIe slot.

HP T740 Thin Client Dual M.2 SSD Slots
HP T740 Thin Client Dual M.2 SSD Slots

Here, we have a small 16GB eMMC module. That is likely good if you want a lower-end firewall or thin client machine, but it is something we would upgrade. HP has a number of different options here.

HP T740 Thin Client Internal Side 1
HP T740 Thin Client Internal Side 1

As a fun item, the front USB connectivity is provided by a daughterboard and the USB ports are aligned along the chassis edge.

HP T740 Thin Client Front Panel IO Board Straight
HP T740 Thin Client Front Panel IO Board Straight

Sitting just above the empty WLAN slot on our system (there are wireless card options in these that we did not have) is another USB daughterboard for the rear USB, one can note that HP had to angle a single USB connector tower. Normally these systems we see aligned ports, but it is fun to see a system where they had to introduce this small design change.

HP T740 Thin Client Rear IO USB Slightly Offset Pair
HP T740 Thin Client Rear IO USB Slightly Offset Pair

Overall, this is a really nice system, albeit about twice the volume of a typical TinyMiniMicro node.

Next, let us get to performance and power consumption before getting to our final words.

13 COMMENTS

  1. Thanks for this. Been looking for a thin client with PCIE capability (and up-to-date hardware) for robotics applications for a while. This fits the bill perfectly.

  2. My biggest gripe with the most of the NUCs or 1L units has been the lack of PCIe slots. This is a pretty nice little package, even at 2.2L. Nice review, absolutely love this series and its tangents.

  3. I wonder what the exact target market for these things was. I assume that HP had one in mind; but anywhere I’ve worked “people we stick on thin clients” and “people who need 4 monitors” were largely disjoint groups.

  4. HP’s t740 QuickSpecs PDF says it supports DASH OoB management. Anyone try this? (Maybe I missed it in review…)

    Any idea whether ECC RAM is supported? I think the V1756B is capable… but can’t tell whether the t740 is.

  5. > I wonder what the exact target market for these things was. I assume that HP had one in mind; but anywhere I’ve worked “people we stick on thin clients” and “people who need 4 monitors” were largely disjoint groups.

    In my head the target market are engineering, cad, design and such which use this as a “thin” client to access much more high performance set ups. Or maybe this thing as a daytrader or similiar information brokerage needer?

  6. Does anything other than Lenovo Tinys (an THIS) have PCI-e expansions? Specifically for additional ethernet NIC

  7. I have got this.

    32GB ram, 128GB + 1TB ssd, intel i350 4 port card, esxi test host, pfsense, unifi controller, windows 10 test machine.

    Excellent choice, i bought it before the prices has been increased.

    I tried with 4X10gbe card, the lan card required active cooling.

  8. I bought a T640 (fanless, unlike T740) to use as a silent desktop to use when all I’m doing is browsing or watching videos. But then I found that it has some bad coil whine, depending on what power brick I use.

    Speaking of DASH management, I tried it on my T640, and apparently it’s an implementation that lacks IP-KVM. According to some PDF, the Elite desktops have KVM, but the T640 does not.

    Even weirder, the serial over LAN didn’t seem to work, and attempting to put the Linux console on one of the Realtek DASH serial ports resulted in some bizarre hangs where the OS went comatose. It’s as if any attempt to write to the FIFO never returned!

    I don’t have one to check, but it wouldn’t surprise me if DASH on the T740 is broken just like on the T640.

  9. I tried this with a HP T730 and it worked well. The T740 is still a currently sold HP product and the prices are still high. The T730 is older and can still be found for under $150 on ebay.

  10. Loved the HP T740 after seeing the STH review on YouTube so I got one but mine came with an Admin password in the BIOS that has so far proven impossible to remove, I’ve reset the password jumper, pressed the Clear CMOS button on the motherboard, even removed the CMOS battery but the password is still there. Does the BIOS come locked like that from HP? Its preventing me from turning on hardware virtualization, changing the boot options or even allocating more RAM to the graphics.

  11. @Alex
    I am also curious about that. I’m looking to purchase one on ebay but they say it has a BIOS password that they weren’t able to clear. Is there a way to clear ALL passwords on this?? Even the Startup Password??

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