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popular Posted by Suryasis • May 21, 2025
popular Posted by Suryasis • May 21, 2025

Minisforum UM780 Pro Cert Refurbished Mini PC Barebone: Ryzen 9 7940HS, 2xSODIMM, 2x M.2 2280, USB4, 2.5G Lan, Wi-Fi 6E @ $305 & More

$305

$639

52% off
Minisforum
19 Comments 16,735 Views
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Deal Details
Coupon Code: $30 Off via UM790-30

Barebone [minisforum.com](No Ram, SSD and OS) @ $305

16GB Ram + 512GB SSD [minisforum.com] @ $389

64GB Ram + 1TB SSD [minisforum.com] @ $507

Note:
  • Only models with SSD and Ram comes with Windows 11 OS.
  • All Certified Refurbished models are covered by 1 Year Warranty
Spec (Barebone)
  • Ryzen 7 7840HS 8C/16T 4 GHz (5.2 GHz Turbo, 24MB Cache)
  • AMD Radeon 780M Graphics @ 2800 MHz
  • 2x DDR5 SODIMM (Up to 64GB @ 5600 MT/s)
  • 2x M.2 2280 PCIe Gen 4x4 Drive Bay
  • 1x M.2 2230 For NIC (Populated with Wo-Fi Card)
  • Intel Killer AX1675 Wi-Fi 6E 2x2 + Bluetooth 5.3
  • Ports:
    • 4x USB3.2 Gen2 Type-A Ports 10 Gbps
    • 2x USB 4.0 Type-C 40 Gbps (DisplayPort 1.4, Power Delivery 100W)
    • 2x HDMI 2.1
    • 1x 2.5G RJ-45
    • 1x 3.5mm Audio Combo Jack
    • 1x DMIC
    • 1x Clear CMOS
    • 1x DC 19V Power Port
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Coupon Code: $30 Off via UM790-30

Barebone [minisforum.com](No Ram, SSD and OS) @ $305

16GB Ram + 512GB SSD [minisforum.com] @ $389

64GB Ram + 1TB SSD [minisforum.com] @ $507

Note:
  • Only models with SSD and Ram comes with Windows 11 OS.
  • All Certified Refurbished models are covered by 1 Year Warranty
Spec (Barebone)
  • Ryzen 7 7840HS 8C/16T 4 GHz (5.2 GHz Turbo, 24MB Cache)
  • AMD Radeon 780M Graphics @ 2800 MHz
  • 2x DDR5 SODIMM (Up to 64GB @ 5600 MT/s)
  • 2x M.2 2280 PCIe Gen 4x4 Drive Bay
  • 1x M.2 2230 For NIC (Populated with Wo-Fi Card)
  • Intel Killer AX1675 Wi-Fi 6E 2x2 + Bluetooth 5.3
  • Ports:
    • 4x USB3.2 Gen2 Type-A Ports 10 Gbps
    • 2x USB 4.0 Type-C 40 Gbps (DisplayPort 1.4, Power Delivery 100W)
    • 2x HDMI 2.1
    • 1x 2.5G RJ-45
    • 1x 3.5mm Audio Combo Jack
    • 1x DMIC
    • 1x Clear CMOS
    • 1x DC 19V Power Port

Community Voting

Deal Score
+12
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19 Comments

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May 21, 2025
10 Posts
Joined Feb 2025
May 21, 2025
SiennaHamster5376
May 21, 2025
10 Posts
This price is pretty good. Still not recommended to get from their site?
May 21, 2025
1,919 Posts
Joined Apr 2005
May 21, 2025
pricecheck
May 21, 2025
1,919 Posts
For US customers, it's $70 more to get a new UM780 barebone version at amazon...
Pro
May 21, 2025
1,163 Posts
Joined Jan 2008
May 21, 2025
PowerPC
Pro
May 21, 2025
1,163 Posts
UM790 Pro $376 barebone Amazon

https://a.co/d/bKHosOV
May 21, 2025
1 Posts
Joined Jul 2024
May 21, 2025
OrangePlant677
May 21, 2025
1 Posts
What's the difference between 780 and 790?
May 21, 2025
12,962 Posts
Joined Oct 2008
May 21, 2025
guest2011
May 21, 2025
12,962 Posts
I've seen faster DDR5. Is 5600 good enough or slow? Is it maximum speed the CPU supports?

Better to pay more for new on Amazon or safe to buy refurb directly from their site?
Last edited by guest2011 May 21, 2025 at 12:59 PM.
4
May 21, 2025
7,873 Posts
Joined Nov 2013
May 21, 2025
WuyiL
May 21, 2025
7,873 Posts
Does Minisforum have any barebones for DDR4? My old NUC is dead and there are two 16gb DDR memory sticks and two 1TB Samsung Nvme drives are still solid.
Original Poster
Pro
Expert
This user is an Expert in Computers
May 22, 2025
19,827 Posts
Joined Jul 2015
May 22, 2025
Suryasis
May 22, 2025
Original Poster
Pro
Expert
This user is an Expert in Computers
19,827 Posts
Quote from WuyiL :
Does Minisforum have any barebones for DDR4? My old NUC is dead and there are two 16gb DDR memory sticks and two 1TB Samsung Nvme drives are still solid.
Look for the Intel barebones as till 14th Gen, they support both DDR4 and DDR5 memory. AMD models, wince Ryzen 6000 series, only supports DDR5. Look for NAD9 deal I have posted.
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Pro
May 23, 2025
732 Posts
Joined Jun 2006
May 23, 2025
zyberwoof
Pro
May 23, 2025
732 Posts
Quote from OrangePlant677 :
What's the difference between 780 and 790?
The CPU. Ryzen 7 7840HS vs Ryzen 9 7940HS. I did some quick research and saw little difference between the 2 CPUs. I expected the Ryzen 9 series CPU to have a substantial difference. Something like a much higher clock speed, additional cores, etc. But I found that the clock speeds were almost the same.

I think the main difference is that the 7940 offers some additional capabilities for overclocking the RAM along with more granular controls over the CPU voltage. Perhaps undervolting the CPU to see a slight decrease in performance in exchange for a decent decrease in power and heat. Both the overclocking and undervolting are things that probably require BIOS support. And BIOS features and updates tend to be an area these cheap mini PCs tend to be lacking.

Someone smarter may chime in and correct me. But on paper, it doesn't look like it's worth paying much more to step up to a 7940HS. At least, not without confirmation that this exact product lets you take advantage of the overclocking and undervolting.
1
Pro
May 23, 2025
3,291 Posts
Joined Jul 2003
May 23, 2025
edrock200
Pro
May 23, 2025
3,291 Posts
Quote from WuyiL :
Does Minisforum have any barebones for DDR4? My old NUC is dead and there are two 16gb DDR memory sticks and two 1TB Samsung Nvme drives are still solid.
The 12900 refurb is ddr4
https://refurbished.minisforum.co...2454758689
1
May 23, 2025
43 Posts
Joined Aug 2017
May 23, 2025
jc1235
May 23, 2025
43 Posts
Price has gone up $50.
May 24, 2025
845 Posts
Joined Nov 2012
May 24, 2025
shauggy
May 24, 2025
845 Posts

Our community has rated this post as helpful. If you agree, why not thank shauggy

Quote from SiennaHamster5376 :
This price is pretty good. Still not recommended to get from their site?

Definitely not recommended to get from their site unless you pay with an AmEx or something that offers purchase protection. My UM690S refurb arrived with no packing and was just bouncing around in the box. There are tons of horror stories online about terrible customer service as well. If you can't get it from Amazon, order at your own risk
2
May 24, 2025
415 Posts
Joined Dec 2022
May 24, 2025
BlueDesk9616
May 24, 2025
415 Posts
This is a great deal on a 780M graphics based system. This is the same GPU in the ROG Ally handheld and it's great for 720p and 1080p low end to medium settings gaming.
May 26, 2025
12 Posts
Joined May 2019
May 26, 2025
EagerScent835
May 26, 2025
12 Posts
Don't buy from Minisforum website! I bought mine last week and the unit stopped powering on (which is common with these mini pc). I tried to get a return but they kept making excuses and not letting me return it. I just decided to take the loss and a lesson learned
May 27, 2025
225 Posts
Joined Aug 2011
May 27, 2025
hppav
May 27, 2025
225 Posts
expires so fast

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May 27, 2025
923 Posts
Joined Feb 2011
May 27, 2025
kfra315
May 27, 2025
923 Posts
Quote from EagerScent835 :
Don't buy from Minisforum website! I bought mine last week and the unit stopped powering on (which is common with these mini pc). I tried to get a return but they kept making excuses and not letting me return it. I just decided to take the loss and a lesson learned
It's a 1 year warranty. I definitely wouldn't give up on that kind of sale

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