Amazing build log. Question: did you have turbulence noise on the cpu side after closing the side panel? How much is the clearance between the cpu fan and the side panel? Thank you.
Log FormD T1 meets MinisForum BD790i! (Build Log & benchmarks)
- Thread starter MarcParis
- Start date
On the CPU side, no noticeable interference noise. On the GPU side (3 slots), yes there were noticeable turbulence noise.
Sorry to necro post, but I had the same problem on my BD790i SE, I believe it is caused by the AMD fTPM stutter bug. I successfully fixed it by disabling fTPM, but at the cost of secure boot. Minisforum could fix this with an AGESA update but i highly doubt they ever will.
Thanks for this info, it could be very helpful, especially with new releases of minisforum mini ITX boards!
In fact I just realized that could be an issue for Windows 11..
Here is very interesting video comparing the BD790i X3D (7945HX3D) vs desktop/mobile CPU (incl R7 9800X3D)
You will find also some interesting settings for the bios, prioritize chiplet with cache.
Another interesting video has some more details about So Dimm setup
At last, gaming test while using RTX 5090
Overall, a pretty good motherboard for gaming this Minisforum BD790i X3D.
You will find also some interesting settings for the bios, prioritize chiplet with cache.
Another interesting video has some more details about So Dimm setup
At last, gaming test while using RTX 5090
Overall, a pretty good motherboard for gaming this Minisforum BD790i X3D.
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FormD T1 & BD790i : Let’s Meet the RTX 5080 Ventus (14th June 2025)
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Last update on this build was 1 year ago. It’s time for a refresh, an upgrade…or simply a trial?
Let’s say for now, it is mostly a trial as I’m running out of time.
SETUP
First step was to upgrade the BD790i bios from v1.05 to v1.12. The process is done under windows, for a change. Good point is that all previous setup is maintained in place.
As next steps I would need to test more on DDR5 speed & timings and PBO undervolting. I made one trial (DDR5 at 6000 MTS & PBO UV -20) that proved to be unstable at the end. But it is added to my to-do list!
And here is the RTX 5080 Ventus!
As it was working well with my legendary MSI GTX 1080ti Gaming X (2.5 slots) in the 3 slots position of the motherboard tray of the FormD T1, I stick to it for the RTX 5080 Ventus!
Truth to be told, it is a painful & slow process in the FormD T1 to change the position of the motherboard tray..
At least there is no air turbulence parasite noise for any fan!
NB : Note that I tried to offset by 5mm the PCIe riser in order to get more fresh air.
It was working at the riser level…
But not at the PCIe bracket level where fixing holes are only compatible with GPU located just behind the motherboard
BENCHMARKS
Here is the full setup :
I compared it directly with my almighty Cerberus-X !
From the 3DMark benchmark, the best one to illustrate the difference would be Time Spy and Time Spy Extreme (higher resolution)
TimeSpy
TimeSpy Extreme
TimeSpy is rather limited on CPU threads, thus it cannot take into account the R9 7945HX versus the R7 9800X3D. At the resolution I’m using, TimeSpy Extreme is way more representative!
Other 3DMark tests are pretty flat.
SpeedWay
The Question!
Overall does that mean that my RTX 5080 Ventus is working as well inside the FormD T1 paired with a R9 7945HX as inside the Cerberus-X paired with a R7 9800X3D??
Well the simple answer is NO, only due to NOISE! But there is a but…there is always a but..
The RTX 5080 fans could spin fast, very fast. Basically under 360W load, the fans were reaching 2700 rpm!
Hopefully not all games are using 360W…but it can happen, here is Stellar Blade, the new furnace @360W!
It is important to note that as there is no air turbulence noise and the RTX 5080 is not oriented towards me, reaching 2700 rpm is not a total noise catastrophe, but it is clearly very uncomfortable.
I will continue my trials and let you know!
FormD T1 & BD790i : Let’s Meet the RTX 5080 Ventus (14th June 2025)
-------------------------------------------------------------------------------------------------------------------------------
Last update on this build was 1 year ago. It’s time for a refresh, an upgrade…or simply a trial?
Let’s say for now, it is mostly a trial as I’m running out of time.
SETUP
First step was to upgrade the BD790i bios from v1.05 to v1.12. The process is done under windows, for a change. Good point is that all previous setup is maintained in place.
As next steps I would need to test more on DDR5 speed & timings and PBO undervolting. I made one trial (DDR5 at 6000 MTS & PBO UV -20) that proved to be unstable at the end. But it is added to my to-do list!
And here is the RTX 5080 Ventus!
As it was working well with my legendary MSI GTX 1080ti Gaming X (2.5 slots) in the 3 slots position of the motherboard tray of the FormD T1, I stick to it for the RTX 5080 Ventus!
Truth to be told, it is a painful & slow process in the FormD T1 to change the position of the motherboard tray..
At least there is no air turbulence parasite noise for any fan!
NB : Note that I tried to offset by 5mm the PCIe riser in order to get more fresh air.
It was working at the riser level…
But not at the PCIe bracket level where fixing holes are only compatible with GPU located just behind the motherboard
BENCHMARKS
Here is the full setup :
- CPU : AMD Ryzen 9 7945HX (stock)
- Motherboard : Minisforum BD790i
- CPU Cooling :
- Heatsink : Minisforum BD790i Heatsink
- Cooling fan : Noctua NF-A12x15 PWM
- RAM : Crucial so-dimm 2x32Go 5200 MTS (CL42)
- GPU : NVIDIA/MSI RTX 5080 Ventus OC +300/+3000 (Core/GDDR7), power limit @100% connected at PCIe 16x Gen4
- PSU : Corsair SF750 with its standard cables for the MB and custom one for the GPU
- SSD#1 : AData SX8200 Pro 2To (Recto)
- SSD#2 : Empty slot (Recto)
- Top Fans #2 : Fractal Design Venturi HP12 PWM, Exhaust (400-1100)
- Front i/o : None
I compared it directly with my almighty Cerberus-X !
From the 3DMark benchmark, the best one to illustrate the difference would be Time Spy and Time Spy Extreme (higher resolution)
TimeSpy
TimeSpy Extreme
TimeSpy is rather limited on CPU threads, thus it cannot take into account the R9 7945HX versus the R7 9800X3D. At the resolution I’m using, TimeSpy Extreme is way more representative!
Other 3DMark tests are pretty flat.
SpeedWay
The Question!
Overall does that mean that my RTX 5080 Ventus is working as well inside the FormD T1 paired with a R9 7945HX as inside the Cerberus-X paired with a R7 9800X3D??
Well the simple answer is NO, only due to NOISE! But there is a but…there is always a but..
The RTX 5080 fans could spin fast, very fast. Basically under 360W load, the fans were reaching 2700 rpm!
Hopefully not all games are using 360W…but it can happen, here is Stellar Blade, the new furnace @360W!
It is important to note that as there is no air turbulence noise and the RTX 5080 is not oriented towards me, reaching 2700 rpm is not a total noise catastrophe, but it is clearly very uncomfortable.
I will continue my trials and let you know!
-------------------------------------------------------------------------------------------------------------------------------
FormD T1 & BD790i : RTX 5090 FE Trial & end of the BD790i (22nd June 2025)
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After my trials of the RTX 5090 FE inside my Cerberus-X, it was time to test it inside the FormD T1.
To fit the RTX 5090 FE inside the FormD T1, here are the most common parameters :
I tested 4x5mm or 1x20mm m3 standoffs. Both are working. Just note that the 5mm standoffs required shorter 4mm screw (not the standard screw provided with the FormD T1 2.5)
Speaking of PSU, I started using SF750 that was clearly enough to boot and launch some benchmarks with power limited/undervolt RTX 5090 FE.
That’s when stability issues showed up.
During the first 3DMark Speedway, the computer restarted, like a reset…that was weird as I was expecting more PSU locking issues i.e. the computer shut down completely and cannot be rebooted before unplugging the PSU from power.
Anyway I tried to use the SF1000 instead of the SF750, but instabilities were still occurring, even though I managed to run some 2-3 “Speedways” tests before new resets. 3DMark Port Royal Demo was the worst one for instabilities.
I even tried back with the RTX 5080 Ventus (I’ve to say that the RTX 5090 FE position fits well the RTX 5080 Ventus, even if the fans are outside the FormD T1)
System resets occurred on both GPU load but also on idle…
I tried the following actions to solve the instabilities issues
Overall I guess there is something damaged on the BD790i..but I can’t say for sure what it is.
The positive note is that GPU temperatures & noise were interesting…I’ll surely continue my investigations on mini ITX.
FormD T1 & BD790i : RTX 5090 FE Trial & end of the BD790i (22nd June 2025)
-------------------------------------------------------------------------------------------------------------------------------
After my trials of the RTX 5090 FE inside my Cerberus-X, it was time to test it inside the FormD T1.
To fit the RTX 5090 FE inside the FormD T1, here are the most common parameters :
- FormD T1 motherboard tray location : for 3-slots GPU
- Add a total of 20mm length M3 standoffs on the riser location
- The GPU bracket is secured by a single screw (make sure to use top height position)
I tested 4x5mm or 1x20mm m3 standoffs. Both are working. Just note that the 5mm standoffs required shorter 4mm screw (not the standard screw provided with the FormD T1 2.5)
Speaking of PSU, I started using SF750 that was clearly enough to boot and launch some benchmarks with power limited/undervolt RTX 5090 FE.
That’s when stability issues showed up.
During the first 3DMark Speedway, the computer restarted, like a reset…that was weird as I was expecting more PSU locking issues i.e. the computer shut down completely and cannot be rebooted before unplugging the PSU from power.
Anyway I tried to use the SF1000 instead of the SF750, but instabilities were still occurring, even though I managed to run some 2-3 “Speedways” tests before new resets. 3DMark Port Royal Demo was the worst one for instabilities.
I even tried back with the RTX 5080 Ventus (I’ve to say that the RTX 5090 FE position fits well the RTX 5080 Ventus, even if the fans are outside the FormD T1)
System resets occurred on both GPU load but also on idle…
I tried the following actions to solve the instabilities issues
- Revert nvidia Drivers
- Disassemble everything and fit inside the U-ITX (Riser issues?)
- Force new DDR5 speed to force new training for DDR5 (this helped on idle resets)
Overall I guess there is something damaged on the BD790i..but I can’t say for sure what it is.
The positive note is that GPU temperatures & noise were interesting…I’ll surely continue my investigations on mini ITX.
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FormD T1 & 12600K & RTX 5090 FE : Surprising mix! (30th June 2025)
-------------------------------------------------------------------------------------------------------------------------------
Even if my BD790i failed to survive, it allows me to show the potential of the RTX 5090 FE inside the FormD T1.
I could not resist continuing my investigation inside the FormD T1. Thus I decided to move finally my solid Intel Core i5 12600K to the mini-ITX world.
The Build!
As a small spoiler, I was not expecting that outcome…
To support my core i5 12600K I’ve decided to get:
Here are carry over parts :
I perfectly dislike the Thermalright mounting bracket as it is touching the motherboard electronics…but it is working, applying quite a lot of pressure on the CPU.
At least, fins orientation is optimized for the mini ITX motherboard.
Time to assemble inside the FormD T1.
The GPU riser makes some kind of shielding for the motherboard back. The SSD located on the back of the motherboard does not have heatsink.
Yes I’m a gambler, sometimes. A SF750 powering a RTX 5090 FE..
This cablemod 12VHPWR cable is very well suited to the FormD T1…in fact I bought it specially for the FormD T1. The fact it is connected to 3-Corsair Type 4 should be helpful to spread the heat of the RTX 5090 FE power..
Related to the RTX 5090 FE, I’m not using any special assembly kit.
There are only 2 specific points :
The beauty!
Time to test!
That’s where I was surprised with the following points :
For today I’ll just post one video under Stellar Blade, illustrating what I can get from this setup.
And yes, the Core i5 12600K is limiting the RTX 5090 FE by approx 5-6%...but it is not affecting the gaming experience at all.
Overall, as I was pleasantly surprised by this setup I decided to switch it as my main desktop. I would like to test it in more detail before my next step :
Stay tuned…
FormD T1 & 12600K & RTX 5090 FE : Surprising mix! (30th June 2025)
-------------------------------------------------------------------------------------------------------------------------------
Even if my BD790i failed to survive, it allows me to show the potential of the RTX 5090 FE inside the FormD T1.
I could not resist continuing my investigation inside the FormD T1. Thus I decided to move finally my solid Intel Core i5 12600K to the mini-ITX world.
The Build!
As a small spoiler, I was not expecting that outcome…
To support my core i5 12600K I’ve decided to get:
- Motherboard : Asus B760-I Strix (second hand)
- RAM : Corsair Vengeance 32Gb 6000MTS CL30
- CPU cooler : Thermalright AXP90-47 Copper
Here are carry over parts :
- PSU : Corsair SF750 (2021) with cablemod 40cm cable 12VHPWR to 3-Corsair Type 4
- CPU Cooler Fan : Noctua NF-A9x14 PWM (2200 rpm model)
- Top (exhaust) Fans : Fractal Design HP12 PWM Venturi
- SSD 1 : SX8200 Pro 2To (Recto)
- SSD 2 : SX8200 Pro 2To (Verso)
- GPU : Nvidia RTX 5090 FE
I perfectly dislike the Thermalright mounting bracket as it is touching the motherboard electronics…but it is working, applying quite a lot of pressure on the CPU.
At least, fins orientation is optimized for the mini ITX motherboard.
Time to assemble inside the FormD T1.
The GPU riser makes some kind of shielding for the motherboard back. The SSD located on the back of the motherboard does not have heatsink.
Yes I’m a gambler, sometimes. A SF750 powering a RTX 5090 FE..
This cablemod 12VHPWR cable is very well suited to the FormD T1…in fact I bought it specially for the FormD T1. The fact it is connected to 3-Corsair Type 4 should be helpful to spread the heat of the RTX 5090 FE power..
Related to the RTX 5090 FE, I’m not using any special assembly kit.
There are only 2 specific points :
- 20mm M3 standoff for the GPU riser :
- GPU bracket only fixed with 1 screw :
The beauty!
Time to test!
That’s where I was surprised with the following points :
- The Corsair SF750 is handling the RTX 5090 FE, even using 575W with no issues…even during the heatwave (ambient temperature is around 28-30°C)
- My Core i5 12600K proved to be way easier to cool than my R7 9800X3D. That is something reviewers are not mentioning as they are almost all using big water cooling systems (360mm) or beefy tower cpu cooler (NH-D15) during their test. With similar CPU coolers (either C14S or IS-47-XT/AXP 90-47), with my R7 9800X3D, downloading a game on Steam is noisy…with my i5 12600K, it is not. It is a similar situation under gaming or word loads…and it was clearly unexpected. Both CPUs are undervolted, the R7 9800X3D by -10/-30 and the Core i5 12600K by -0.085v.
- The FormD T1 can cool the RTX 5090 FE, even without any undervolting reaching ~80°C whereas I’m reaching 75°C within the Cerberus-X. This remains clearly under control on thermals and also on noise.
- The RTX 5090 FE fanless mode (Drivers 576.80) is working well inside the FormD T1. It is not permanent, but it is happening the majority of the time…despite the heatwave.
For today I’ll just post one video under Stellar Blade, illustrating what I can get from this setup.
And yes, the Core i5 12600K is limiting the RTX 5090 FE by approx 5-6%...but it is not affecting the gaming experience at all.
Overall, as I was pleasantly surprised by this setup I decided to switch it as my main desktop. I would like to test it in more detail before my next step :
- Switching again to mini ITX my R7 9800X3D?
- Staying on mini ITX but with Intel CPU, like 14600K/14700K and getting rid of the R7 9800X3D?
- Keeping the R7 9800X3D in ATX and keep the 12600K as mini-ITX
Stay tuned…
Small updates :
- I finally experienced one PSU failure while playing at Stellar Blade. It was a shut down with USB components still powered. After it was during a heat wave (32°C ambient temp). I was able to restart and play again with no trouble. Anyway I've switched to the SF1000, just to be sure.
- I've tested PL1 & PL2 with my Intel core i5 12600k. Finally I've chosen to use PL1 @100W and PL2 @120W. It is avoiding any thermal throttling.
Here is a longer gameplay session on Stellar Blade...without heat wave (ambient is 25°C)
Even if the RTX 5090 FE is not using 575W...it is hovering around 350W and core & GDDR7 temperatures are simply excellent (65°C/80°C). However the GPU core utilization is only between 70-80%, thus with a faster CPU, the GPU temperatures would be higher too.
The CPU temperature is also pretty good, thanks to the dual chamber design.
Simply said, this setup is working really nicely (cool & quiet)!
Even if the RTX 5090 FE is not using 575W...it is hovering around 350W and core & GDDR7 temperatures are simply excellent (65°C/80°C). However the GPU core utilization is only between 70-80%, thus with a faster CPU, the GPU temperatures would be higher too.
The CPU temperature is also pretty good, thanks to the dual chamber design.
Simply said, this setup is working really nicely (cool & quiet)!
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FormD T1 : Let’s Meet Corsair RS120 MAX + Noctua NA-FG1-12 Sx2 (16th July 2025)
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Thanks to Amazon deals I decided to upgrade my venerable Fractal Design HP12 PWM by Corsair RS120 Max (30mn thick). Nothing new regarding this move…even pretty standard alongside the Phanteks T30.
However what is little new is the addition of the Noctua NA-FG1-12 Sx2, a fan grid system with offset mounting system.
Basically I’m aiming to avoid any hot air recycling without using any 3D print parts..
Let’s start with photo tour
Before :
Noctua Offset mounting system
Direct comparison, before & after
After
At the end the RS120 Max fans are simply 1mm away from the top case panel, maximizing exhaust air flow!
Cherry on the top is that the fans are now “HOT swappable” if I can say. In fact I can unclip the fan from the Noctua mounting system without removing the grid of the case bracket! The downside is that the grid can slide. It is to be tested by transporting the case.
What about noise? Well I’m pleased to report that the fan can spin at 1400 rpm without any major noise. At this speed the RTX 5090 FE fans are still louder. Pretty nice!
What about performance? By pushing the exhaust RS120 Max to 1400rpm is noticeably helping the RTX 5090 FE cooling.
RTX 5090 FE (Stock) :
RTX 5090 FE (Undervolt, not fully stable) :
Pretty little setup…
FormD T1 : Let’s Meet Corsair RS120 MAX + Noctua NA-FG1-12 Sx2 (16th July 2025)
-------------------------------------------------------------------------------------------------------------------------------
Thanks to Amazon deals I decided to upgrade my venerable Fractal Design HP12 PWM by Corsair RS120 Max (30mn thick). Nothing new regarding this move…even pretty standard alongside the Phanteks T30.
However what is little new is the addition of the Noctua NA-FG1-12 Sx2, a fan grid system with offset mounting system.
Basically I’m aiming to avoid any hot air recycling without using any 3D print parts..
Let’s start with photo tour
Before :
Noctua Offset mounting system
Direct comparison, before & after
After
At the end the RS120 Max fans are simply 1mm away from the top case panel, maximizing exhaust air flow!
Cherry on the top is that the fans are now “HOT swappable” if I can say. In fact I can unclip the fan from the Noctua mounting system without removing the grid of the case bracket! The downside is that the grid can slide. It is to be tested by transporting the case.
What about noise? Well I’m pleased to report that the fan can spin at 1400 rpm without any major noise. At this speed the RTX 5090 FE fans are still louder. Pretty nice!
What about performance? By pushing the exhaust RS120 Max to 1400rpm is noticeably helping the RTX 5090 FE cooling.
RTX 5090 FE (Stock) :
- Benchmark : 3DMark SpeedWay
- Power ~560W
- Core Temperature : 80°C (+4-5°C vs Cerberus-X)
- GDDR7 Temperature : 98-100°C (+2°C vs Cerberus-X)
- Fan Speed : ~1780rpm (+150rpm vs Cerberus-X)
- Ambient Temperature : 27°C
RTX 5090 FE (Undervolt, not fully stable) :
- Benchmark : Stellar Blade
- Power ~300-400W
- Core Temperature : <70°C
- GDDR7 Temperature : <80°C
- Fan Speed : ~1400rpm
- Ambient Temperature : 27°C
Pretty little setup…
Last edited:
If you want to up the ante a bit - Arctic S12038-8K just dropped on Geizhals yesterday.
On another note: Ordered them right away - should arrive on Saturday
cu, w0lf.
On another note: Ordered them right away - should arrive on Saturday
cu, w0lf.
lol a bit too tall...and way too loud too lol...8000rpm...gosh..If you want to up the ante a bit - Arctic S12038-8K just dropped on Geizhals yesterday.
On another note: Ordered them right away - should arrive on Saturday
cu, w0lf.
As a complement of the "hot swappable" fan feature here is a better photo :
Easy!
Easy!
I gonna report how much difference they gonna make in comparison with the P12 Max, both in terms of cooling and noise. My Mesh-mATX build, which is finally restarted again, is gonna feature a 240 AIO with P12 Max "pre"-installed (I replaced the original fans a while ago; this AIO was the test / mockup for my S396 build).lol a bit too tall...and way too loud too lol...8000rpm...gosh..
cu, w0lf.
For sure you will reach full potential of your radiator with this kind of industrial fans.
My former experience with this kind of industrial has been always terrible as the fan motor noise is terrible, even at low speed.
Please share your feedback!
I'm totally aware of the noise levels. on the other hand, there is the EK Vardar
cu, w0lf.
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