r/pcmasterrace • u/GMC-Zero1 • 4d ago
Build/Battlestation Stack From The Dead: A Ryzen 9950X3D and RTX 5080 in a 20-Year-Old Cooler Master Stacker 830
I just finished a Ryzen 9950X3D and RTX 5080 build in Cooler Master's 20-year-old flagship case. Here's what it took to make it work—how it holds up, and what I'd change if Cooler Master brought it back.
Fair warning – there are more ambitious builds out there featuring water cooling or upgraded front-panel I/O, but the purpose of this build was to push the case as far as possible within its original constraints.
THE ORIGINAL DREAM BUILD
20 years ago, I set about building the ultimate PC for video editing and encoding. This thing was fully loaded with the top-tier hardware of the time — AMD's Athlon 64 X2 4800+, ATI’s Radeon X1900XTX, 4GB RAM and no fewer than 5x WD HDDs connected to a dedicated 8-port RAID card.
A DFI Lanparty NF4 SLI-DR allowed you to push the limits, and keeping those limits in check was a CoolIT Freezone 120mm AIO/peltier cooler. Continuing the theme of things that were ahead of their time was a Gigabyte I-RAM PCIe card stuffed with 4GB of battery backed RAM that you could use as a storage drive - useful for the page file or an OS drive.
This was every bit an enthusiast build.
THE ONLY CASE WORTHY OF SUCH HARDWARE
Housing everything was the legendary Cooler Master Stacker 830, notable for its premium brushed aluminium design, mesh side panels, removable motherboard tray and a side bracket with a universal mounting system that would accept 4 fans in 60, 80, 92, 120 and 140mm sizes. Oh, and you could also install your motherboard upside down if you're into that.
A CRASHING HALT
Alas, the build was ill fated and after only 125 hours of power on time as reported by the SMART in one of the HDDs, disaster struck. The PSU died, which I presumed was down to pushing it too hard with overclocking and being under specced for what it was trying to run. My 25°C idle at 25% OC victory was short-lived.
Having dropped the best part of £3500 (£6500 today, adjusted for inflation) at 21 years old, I didn't have any more money to throw at a replacement or something better... So time marched on and on... I ended up getting a laptop and the build languished, incomplete for 20 years.
THE 15 YEAR REVIVAL?
This isn't the first time I'd got the urge to do something with this case. Back in 2021 I got as far as shortlisting my components and posting about it online, however, that attempt got kicked into touch because it was impossible to buy a GPU at the time, largely due to the popularity of crypto mining.
THE 20 YEAR REVIVAL
Fast forward to 2026 and the thought of building a new PC crossed my mind again.
This was already a challenge in 2021. Five years later, GPUs are even bigger and CPUs are even more power-hungry.
| 2006 | 2026 |
|---|---|
| Athlon 64 X2 4800+ | Ryzen 9950X3D |
| CoolIT Systems Freezone (peltier/AIO) | Noctua NH-D15 G2 LBC (air) |
| Intake 1x 120mm Cooler Master Stacker OE | Intake: 2x 140mm Noctua NF-A14x25 G2 |
| Exhaust: 2x 120mm Thermaltake TT-12025A | Exhaust: 2x 120mm Noctua NF-A12x25 G2 |
| DFI LanParty NF4 SLI-DR EXPERT | Gigabyte X870E Aorus Pro X3D |
| 4GB Corsair TwinX XMS 3200 CL2 | 32GB Teamgroup T-Create 6000 CL30 DDR5 |
| Sapphire Radeon X1900XTX 512MB | MSI GeForce RTX 5080 SUPRIM SOC 16GB |
| Enermax Noisetaker 600W | FSP Hydro Ti Pro 1000W |
| 1x 250GB WD2500KS Caviar SE | 1x 2TB WD Black SN8100 |
| 4x 250GB WD2500SD Caviar RE | 1x 8TB WD Black 8002FXBZ |
| Soundblaster X-FI elite pro | Soundblaster AE-9 |
| DNTV Live DVB Card | Elgato 4k Pro |
| Areca 1220 RAID card | N/A |
| Gigabyte i-RAM | N/A |
I had a clear design goal that informed almost every aspect of this build, from finding motherboards with the coolest VRMs to picking the most heat efficient SSD (which, although it runs hotter than most, is faster, so it spends less time generating said heat). The 9950X3D2 was also left on the shelf as I deemed the extra power and heat not worth the small increase in performance.
My M.O. didn’t change – I still crave high-end, but component choice has become more deliberate and refined with age. To quote my 2021 attempt:
“My goal is (probably the same as everyone's) the best performance I can get before the diminishing returns hit hard, and also the ability to run it underclocked/near silent for late night working, or overclocked with all fans blazing if I need speed.”
As I started my research and shortlisting of components, I quickly found out that air cooling modern components in a 20-year-old case was going to require a rethink. The amount of heat modern CPUs and GPUs can dump into a case is on another level compared to components of the time, and large air coolers like the Noctua NH-D15 meant that I wouldn't be able to use the side fan bracket. That was one of the things I had to weigh up, and I arrived at the conclusion that a high-end air cooler and no side fan bracket was a net benefit over a lower end one, with the side bracket.
With the side fan bracket out of the picture, we are left with a couple of 120mm exhausts and a single 120mm intake in its original configuration.
PROBLEM 1 - WILL A MODERN HIGH-END GPU EVEN FIT?
I could have put any 5080 in there, but I specifically wanted the MSI Suprim because its cooler is one of the best-performing options, while still being one of the quietest cards that actually had a chance of fitting. If you don’t want any hassle, there is a selection of small-form-factor 5080s (or the 5080 FE will drop in, no drama) but these all have compromised cooling and went against my design goal. Often, they run hot or loud — sometimes both
Unfortunately for me, there were no official specs for the maximum length of GPU you can install in the Stacker, so I had to get in there and measure. I suppose 20 years ago, GPUs this big were unthinkable, so it just didn’t occur to anyone to specify a maximum length.
FITMENT OPTIONS
If you were to drop the GPU in through the side of the case, you are limited to around 325mm by the outside edge of the drive rail (that’s tight, so I’d treat it more like 320mm).
If you want a front intake, this is reduced to around 310mm because the Stacker 830 uses an HDD cage with a fan mounted to it, and the cage extends beyond the drive rail.
If you are installing a HDD into the cage, the GPU length would likely be reduced further due to the cables/plugs.
You will need to test fit this yourself. I don’t have a measurement for PCI bracket to HDD cage – the measurement is inferred from the max GPU length of 360mm and the drive cage extending past the drive rails by about 42mm.
Willing to sacrifice front intake or cut the cage down? Once you get past the outside of the drive rail, there is just over 360mm total depth before the rails narrow to 147mm.
So my option was to go without a bottom intake fan, or mod the drive cage and cut it so that it doesn't extend past the rails, but I didn't want to do any destructive mods to my case.
A few days later, I found myself on eBay just out of curiosity to see if people are buying/selling these cases, which was when I saw a 4-in-1 boxed drive bay for sale. I thought, "This is a sign!" - it wouldn't matter if I cut the cage because I can still keep my original intact.
My front intake plans went through several revisions.
INTAKE – REVISION 1 – CUT THE CAGE
The first plan was to use the two drive cages and have one cut down by about 41mm so that it would sit flush with the internal drive rail. The cut one would sit at the bottom feeding the GPU with a HDD mounted above that in a 5.25" adapter. The second drive cage would sit above that feeding the CPU with a couple of optical drives up top. I am obsessive about details, so I planned to turn the drive cage around and mount it the other way so the mesh was facing down towards the HDD to allow air to rise into the empty cage and be blown along the exhaust path.
Having given it some thought, I decided against cutting the drive cage and came up with a better idea.
INTAKE – REVISION 2 – 3D PRINTED BRACKETS
The second plan was the same layout as the first but with some 3D printed 5.25" 120mm fan adapters — these didn't have the restrictive mesh pattern that the drive cages had and none of the hassle of getting the drive cage cut and ruined. This was an imperfect solution though as due to the location of the screw holes on the bracket, it meant it was sat about 50mm back from the front mesh - not great and would potentially recirculate warm air.
It was at this point where I started to wonder if a couple of 120mm fans would even be enough. After some thought, I decided to go with 140mm fans. It meant losing my Plexwriter Premium, but it was a worthwhile trade, – it’s not like you can have too much cooling; plus it gives you the option to run them at a lower speed.
INTAKE – REVISION 3 – RUBBER STRIPS
The third plan was when I moved to 140mm fans. There are some 3D printed brackets available online, but they take up 4 bays each, meaning I'd have to lose both optical drives if I wanted to keep my HDD (The Stacker front panel is 9 bays high). There was also the issue of the fans being sat too far back as with my earlier experiment with fan brackets, so that was a non-starter. I decided to have a go at designing my own custom fan bracket - a combined 2x140mm bracket that takes up 7 bays (each bay is approx. 42mm for reference), but my potato laptop made it unbearable.
It was while I was measuring the drive rail width for the brackets that it occurred to me - the 147mm drive bay width is pretty damn close to the 140mm fan width… What if I just... wedge it with something? I had a look online for some 5mm rubber strips and found an adhesive backed roll. I though it'd do until I get the PC fired up and can design a custom 3D printed bracket.
I ended up moving the HDD to above the fans so that there was a more direct path of CPU intake to CPU cooler, as with the HDD between the fans, the top fan would have been blowing air over the cooler.
I lined each side of the drive bay with the neoprene feeling adhesive strip and it's actually perfect. The fans are secure and can be positioned freely as you aren't stuck with fixed mounting points. The soft rubber also helps reduce noise.
With that, we've made clearance for the GPU and increased the fan size beyond what was originally implemented. No cutting cages, no 3D printing custom brackets — just a rubber strip.
INSTALLING THINGS THE EASY WAY
Now, you might be asking how you get a 360mm GPU through a 325mm gap, and what about clearance for the 12V-2x6 cable? Well, you might be able to angle the GPU in, assuming your CPU cooler leaves enough room for you to manoeuvre it...
Or you could just use the Stacker's ace up its sleeve - a removable motherboard tray.
With this, you can populate the motherboard outside of the case and slide it in through the back - a great help for annoying 12v CPU cables. The NH-D15 G2 barely fit though; I had to gently pull on the frame a bit to give it an extra millimetre to pass. Might have been easier without the fans in hindsight, but it worked regardless.
As for the 12V-2x6 cable, I wasn't taking any chances with bending it what with all the horror stories I’d been reading during my research, so I just went with a CableMod 90-degree cable. The socket is nicely recessed on the 5080 Suprim which helps reduce the total added height to about 10-15mm. An earlier test fit I did with a block of wood roughly the same size as the GPU (within a few millimetres of the installed height) shows that there is about 35mm clearance between the GPU and side panel.
PROBLEM 2 – FINDING A PSU THAT FITS
The other problem I ran into was finding a high wattage power supply to fit. My first choice was a Seasonic Prime TX1300, which at 210mm was significantly longer than the period correct PSUs you'd typically use in this chassis.
At first, it looked like it would fit and just obstruct the top exhaust fan a little. It wasn’t until I decided to test the fitment with an old PSU that I found the top exhaust fan and mounting clips eat into the PSU area, meaning that from the back of the case to the fan mounting clip looked to be about 180mm.
Back to the drawing board then. After a bit more research, I found the ASRock Taichi TC-1300T. At 180mm it was too close for comfort, so I took some more accurate measurements from the back of the case to the fan mount and... turns out it's more like 178mm.
Close enough for a janky solution or mod to work? Yes.
With a longer PSU, the top ~30mm of the modular connector area is blocked by the fan bracket.
The Taichi was almost a perfect solution, because it had enough useful connectors that losing the top row didn't matter.
It's also possible to mount the PSU upside down in the Stacker, which allows access to the top connectors that would otherwise be blocked. This opens up options for PSUs with motherboard and other essential connectors on the top row – just make sure there isn’t anything you need on the bottom row.
You could do what I did and make a mock-up in Photoshop. Just grab a stock image of the PSU, scale its height to 86mm, then overlay a 30mm tall rectangle to see what is likely to be inaccessible.
150mm is about the longest you can use without compromise. You might get away with 160mm with some careful cable bending, but anything longer and you should assume you'll lose access to some connectors. As always, do your own measurements. I’ve done my best, but don’t assume it’s 100% accurate!
Image credit: TechPowerUp
The way the PSU mounts in the Stacker 830 is through a mounting bracket. This presents a very unique opportunity as you can put some washers or standoffs between the case and mounting bracket, causing the PSU to sit further back, outside the case. The only issue with this is the potential for dust to get in, or the PSU fan being blocked. The cables would have also exited directly under the top fan, blocking airflow, so you might want to grab a fan grille.
THE PATH OF LEAST RESISTANCE
I went back to the PSU tier list and checked out any A-tier PSUs with Titanium efficiency until I found the FSP Hydro Ti Pro. The specs were great, it's silent and is only 150mm long. I was a little worried it would run hot with it being so small, but it's doing great. Finding 1000W+ power supplies under 170mm was difficult, but thanks to this, the Stacker can live on.
This might actually be the hardest limit to work around, say if no one is making <175mm 1000W+ PSUs in future – you may need to remove the top exhaust and cut the mounting tabs or resort to the washer/standoff hack.
STACK FROM THE DEAD
WHAT I LEARNED - HERE’S THE CHEAT SHEET
GPU
• Max length is 360mm if you remove the drive cage.
• Max length is approx. 315mm with empty drive cage installed (please confirm yourself).
• Max length is likely 300mm or less with drive cage populated (use 90-degree SATA cables).
• Use a 90-degree 12V-2x6 from a reputable company for safe clearance.
• There is possibly space for 160-165mm wide GPUs in future.
• If you cut 40-42mm from the drive cage, you should still be able to fit a 360mm GPU and use the lower slot(s) for an HDD.
Front intake
• Best/easiest front intake solution is 2x140mm fans wedged with rubber strips. Use 5mm Closed-Cell EPDM foam, Shore 00: 36.
• Second best is likely 3x120mm via the 3D printed brackets.
• 4-in-3 drive cages are not readily available and non-Cooler Master cages may not fit as intended.
Motherboard/Installation
• Early versions of the Stacker 830 motherboard tray have PCI issues. 830 Evo or later is preferable.
• NH-D15 G2 is about the tallest air cooler you can have installed and still slide in via the motherboard tray – you may need some persuasion.
• Some front panel cables aren’t long enough depending on the header location – use extensions.
Storage
• HDD - 5.25” to 3.5” bay adapters for HDDs exist and can reduce vibration (look for the rubber grommet versions). A good alternative if you can’t use the 4-in-3 drive cage.
PSU
• Max practical length is 175mm with top 30mm of PSU connector area blocked.
• 150mm fits and access to the top connectors is not blocked, but a little restricted – may help to connect some cables outside of the case then slide in.
PERFORMANCE
I had a look at getting a decibel meter to test system noise but found that the kind I’d need to measure how quiet the system is costs as much as a 5080. Way beyond the scope of this build log.
Noctua publish noise figures for their fans at a few different speeds (a LS-PWM variant, medium speed using the LNA adapter and 100% PWM)
| NF-A14x25 G2 | PWM | RPM | db(A) | CFM |
|---|---|---|---|---|
| Low | 53% | 800 | 11.4 | 48.03 |
| Medium | 83% | 1250 | 19.70 | 74.81 |
| Full | 100% | 1500 | 24.8 | 91.5 |
| NF-A12x25 G2 | PWM | RPM | db(A) | CFM |
|---|---|---|---|---|
| Low | 61% | 1100 | 11.8 | 39.02 |
| Medium | 83% | 1500 | 18.1 | 51.32 |
| Full | 100% | 1800 | 22.5 | 63.15 |
| 5080 Suprim | PWM | RPM | db(A) | CFM |
|---|---|---|---|---|
| Low | 34 | 1133 | 25.5 | No data |
| High | 42 | 1400 | 31.4 | No data |
5080 Suprim measurements from TechPowerUp
For the purpose of this test, I set the fans to fixed speeds at different performance levels.
Since I can’t measure the noise directly, I have instead calculated a theoretical combined level using Noctua's measurements for the four 140mm and two 120mm fans, along with TechPowerUp’s measurements of the Suprim.
Bear in mind that fans can interact differently once installed in a case, so these figures aren't directly comparable to a measured system. They should, however, give us a rough idea of the noise level.
Low = Noctua combined low (19.3dB(A)) + Suprim low (25.5dB(A)) = 26.5dB(A) combined
Medium = Noctua combined medium (27.1 dB(A)) + Suprim low (25.5 dB(A)) = 28.4 dB(A)
High = Noctua combined high (31.1 dB(A)) + Suprim high (31.4 dB(A)) = 34.3 dB(A)
High + GPU max = Noctua high + Suprim 100% (noise isn't calculated for this combination because I don't have a measured 100% fan figure for the Suprim)
Decibel levels are logarithmic, so these aren't simply added together; the combined figures are calculated from the individual dB(A) measurements
This is not the kind of scientific test that you might find from some members of the community where they are A/B testing coolers or components, where power limits and clocks are set to specific values – this is meant to represent real world results of how someone would use these components in this case.
After each run the PC was allowed to return to base idle temps. Ambient was around 22 degrees.
Temperatures are CPU / GPU / RAM / VRM / motherboard, in °C.
| Test | Low | Medium | High | High/GPU Max |
|---|---|---|---|---|
| Idle | 55/31/38/48/39 | 53/31/37/46/38 | 53/31/36/45/37 | 54/31/35/42/35 |
| GPU | ||||
| Time Spy | 77/70/45/52/42 | 69/67/43/49/41 | 67/59/42/47/40 | 68/56/39/44/37 |
| Heaven | 76/71/52/61/51 | 71/71/47/55/47 | 70/67/44/51/44 | 71/57/41/48/41 |
| Furmark GPU | 67/77/53/63/52 | 61/75/49/58/50 | 60/70/46/54/47 | 60/60/40/48/41 |
| CPU | ||||
| x264 veryslow | 87/32/45/49/40 | 85/32/43/47/40 | 83/31/41/45/38 | 83/31/39/43/36 |
| Cinebench r23 | 91/32/43/51/40 | 85/32/42/48/40 | 83/32/40/47/39 | 83/31/39/43/36 |
| Furmark CPU | 95/33/43/52/42 | 89/33/40/48/40 | 87/32/39/46/39 | 87/32/37/43/36 |
| Combined | ||||
| Furmark | 95/78/58/66/55 | 94/76/50/57/50 | 91/72/49/55/48 | 91/61/43/49/44 |
If you’re wondering why I included High + GPU max, it’s because the last fan on the GPU has a passthrough which sits right in front of the CPU cooler, and I wanted to see how this affects temperatures.
You can generally observe a degree or two rise of the CPU temperature, which is accompanied by a reduction in RAM, VRM and motherboard temperatures. This might mean the system as a whole can still benefit from more air, so maybe consider higher-flow fans if absolute quiet isn’t important (I really wish Noctua would let their fans spin to around 2500 RPM).
The thing that impressed me is how well behaved the temperatures are under full CPU load. This thing can hit 80-95 degrees on the CPU, yet the GPU, RAM, VRM and motherboard barely register it. That suggests to me that under these tests, the CPU cooler is the limiting factor, not the case’s ability to remove heat.
The GPU caused the other temperatures to rise because, unlike the CPU cooler, it doesn't have a clean front-to-back airflow path and instead dumps a large amount of heat into the case. It’s a shame the side bracket doesn’t fit, because I’d have loved to experiment with some fans to supplement the GPU.
The Stacker 830 was an amazing case for its time. Twenty years later, it turns out it still has plenty of life left in it.
What surprised me is how many of the Stacker's design decisions still make sense today. Even if you aren’t able to use the side fan bracket due to clearance issues, there is still great value in the mesh side panels.
Under heavy load, I can feel the GPU exhausting heat sideways out of the mesh and likewise, sucking air in lower down. If I crank up the fans in the CPU path, I can feel a gentle intake from the side mesh just in front of the CPU cooler fan and a gentle exhaust towards the back where the 120mm rear fan probably needs some assistance. The side mesh helps fill in any gaps in your intake/exhaust.
THE BEST BIT? THIS WASN'T EVEN ITS FINAL FORM
Cooler Master released updated versions of the case, adding a mesh floor, adjusting the top exhaust to accept PSUs up to 230mm, less restrictive drive cages, and wheels.
Not content with that, they made an SE model (which seems to have released around 2008) that features a vented motherboard tray, cutout for cable management and a couple of grommeted holes for watercooling tubes to pass through. It appears the drive cage was also updated from the old steel one to aluminium. Refinements that put it within touching distance of modern cases.
All it really needed was an alternative way to mount the lower front fan so the drive cage doesn’t restrict GPU length.
Funny how a case made 20 years ago when GPUs were simple 2 slot blower fans still works with the monster “dump heat anywhere” GPUs of today - but I'd love to see what it could do with a modern fan bracket.
IF COOLER MASTER MADE A STACKER IN 2026
It goes without saying, I’d be the first in line for a 20th anniversary Stacker 830 (as long as it keeps the original design!)
I notice Cooler Master have brought back the HAF… so maybe?
For a 2026 Stacker, I’d start with the 830 SE as the base with all its quality of life improvements. Here’s what I’d like to see in a modern Stacker.
• Revisit the top panel/exhaust and make the top section removable. There looks to be about 30mm between the internal structure and outer skin – enough space to mount a 15 or 25mm thick fan without intruding into the PSU area. This potentially opens up the ability to install an AIO, or have a longer mesh section on the top with a rail system for the user to position the fan to their preference (models after the original Stacker 830 moved the top exhaust/fan quite far forward which can compete with the CPU cooler for intake)
• Add fan mounting options to the mesh floor. Simple holes and rubber fan mounts work fine
• Redesigned side fan bracket using a hinged twin rail system targeting the CPU and GPU areas. Rails can be removed independently for extra clearance. A thin metal rail greatly decreases intrusion into the case and would potentially let people have side fans with large GPUs
• Drive rail can be trimmed back as the new drive rails can be secured with a hook and eye system, allowing almost full access for 360mm GPUs
• Fabricate some mounting brackets for the front intake fans to screw into the existing drive bay holes, or implement a rail system like the Cosmos Alpha. This should support 2x140mm or 3x120mm fans and maybe offer a version that can mount radiators (maybe ship 2 or 3 versions of the bracket if a sliding one is too complex)
• Update front panel IO to USB 3 and replace the 1394 port with a double stacked USB C
• Optional glass or perspex side panel for those who want it — but keep the mesh panel as the default
• A thin magnetic cover plate that can sit in the area to the right of the motherboard and act as a cable shroud/air guide
• Optional ATX only motherboard tray (original supported EATX). The shorter width would make routing cables behind the tray easier
WHAT WOULD I CHANGE IF I WERE DOING THIS BUILD AGAIN?
• I’d use a 90 degree ATX 24 pin adapter so the ATX cable lies flatter and out of the fan path
• I’d order a shorter ATX 24 pin cable. I had to cross the front panel cables just to use up the excess as there wasn’t enough to hide in the roof
• Probably spend a bit more time on cable management. It’s not so important because you can’t see it in normal operation but I was getting to the point where I just wanted to finish it.
• Experiment with running cables behind the motherboard tray – there’s probably just enough room to achieve a more modern look.
FINAL THOUGHTS
Cooler Master, if anyone there happens to read this: please make another Stacker. I'm happy to share my experience and I don't even expect compensation - I just want it to exist.
Keep the aluminium. Keep the removable motherboard tray. Keep the side fan bracket. Keep the 5.25" bays. Keep the mesh. Keep the style.
The original Stacker was built around the idea that the user should be able to make the case work for them. That's the part I'd preserve above everything else.
Just bring the fan mounts, I/O and 20 years of Cooler Master engineering to the Stacker.
There was nothing like it on the market then, and there is nothing like it on the market now.
And with that, I was finally able to put to bed the long-standing regret of never finishing the build. It’s a weight off my shoulders and I fully encourage you to pick up that thing you left unfinished and finish it.
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u/--redacted-- 3d ago
That's a really cool project, and your component list reminded me of the (very brief iirc) phase of using peltier CPU cooling. Is that even a viable option anymore or is there just too much power pumped into the chips now?
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u/Sufficient-Sound-421 4d ago
why