I had been able to build an amazing compact light gamer, and a medium sized box that can game at 1440 p. I had attempted to upgrade the medium machine with a great AMD processor. But, this failed when i was sent a bad AMD 5900x chip for close to 500 dollars. Amazon was reluctant to take it back. I threw a fit, and finally ended up just mailing it back to them and yelling at customer service.
I bought a small mother board that can handle the new 12 generation intel chips, and the i7 12700kf processor. both mother board and processor arrived in open packages. someone had already tried both items and found them wanting! The processor box had been opened, but it contained a perfectly clean processor in the intel packaging. the mother board was the one that i had ordered, but it was not in an intel box at all. it was in a taped closed bag with a little bit of paper in there saying amazon refurbished. there was no gigabyte stuff in the bag at all, although all of the usual connectors were in the bag.
this mother board was beat to hell. it could not start with any modern memory. it only booted with 2 old 8 gig memory sticks at a very low clock speed. It had physical damage, so that the video card did not fit in properly. The usb 3.2 header did not work at all. I installed windows, and tried to use the board, but it was junk. I asked for a ups pickup for both board and processor, but Amazon customer service refused to take the processor back! I sent the mother board back, and they sent a new board in a sealed gigabyte box. I placed the used i7 processor on that board, and it all worked! holy moly, it had been months of battling with Amazon.com to try to get parts for a working high end machine.
By contrast, Amazon had given up trying to sell video cards, and the 3rd party company that I chose sent a sealed box containing a NEW and factory tested asus rtx 3080. This is a huge card, with a massive, thick heatsink and 3 high speed fans. to provide a bit of room around the huge gpu, I chose the Sliger Cerberus case. This case can handle a micro ATX motherboard, which is 9 inches square, and has extra room when you use the 7 inch square mini ITX size of motherboard.
Here is how the case looks from the outside. I got the gray color, which is just beautiful in my opinion....
For cooling, I had originally used a much larger 14 s cooler from noctua. this removed heat from the processor super well, but left the memory and other components of the mother board screaming hot. I have switched to the much smaller noctua NH-L9x65, and i have mounted a 25 by 140 mm fan instead of a 15 by 92 mm fan. This provides powerful blast of air to chill the m.2 drives, the vrms that power the processor, and the other hot components.
I fit in a data center drive, which is great when I use this machine for graphics. It is a 12 T iron wolf from Seagate. very noisy, but absurdly fast. I use it like a tape backup, because it is dozens of times slower than the 2 * 2T m.2 drives fixed to the motherboard. The convenience of having all images and videos on hand in the box outweighs the extra heat generated. There is ample room for at least 2 3.5 inch drives in this configuration. But, even with this large, well ventilated case, It is hard to keep components cool during gaming. This is the most fans that the Sliger company has seen in the case.
Setting up the system for both gaming and image editing is not so easy. The demands are super different. For still image editing, the i7 is fully used only for very short bursts. Fewer fans can be used, and components can be very close in the box. the environment inside the case is cool, with little bursts of heat that have plenty of time to clear out. Gaming at 4k is a hot proposition. the GPU is going at 365 watts, and the mother board and processor can use over 200 watts. The hard drive and the power supply itself make heat, and the entire inside of the case is 'heat soaked' with a certain minimum temperature. The case is a small oven during games, and if the hot air can not be quickly changed, temperature will go up and up until the processor and the graphics card and the drives all slow down to reduce their temperature.
Within the virtual world of the game, a super sized cup of hot coffee is spilling onto your virtual junk. The monsters have become jerky robots that are killing the heck out of you, and you are running in place. By the time you shoot, they are long gone! So for gaming, you get the oven hot by running a benchmark program instead of a game. then, you monkey with the fan speeds, and the voltage that is sent to both processor and graphics card. A perfect spot is sought, where the voltage is as low as possible for stable operation. As the voltage is dropped to these components, they actually go faster and faster, and make less and less heat. at some point, depending on the efficiency of the part that one ended up with, you get unstable video, followed by a crash. When using a benchmark program within windows, the benchmark program crashes, but windows is fine, and the computer keeps running. So, you can make a lot of small changes quickly, without having to restart a large game, or windows itself.
After the best settings are found in the benchmark program, you start the most demanding game, and play it intensely to see if it will crash. The same thing is going on with your heart, where you are running up it's beats to some healthy maximum. With the heart, you can not go until it crashes though! Computer gaming is not for everyone, and it is only fun for people like me who actually enjoy being highly excited and frustrated for long periods of time.
further refinements:
the low profile cooler splashed a lot of air onto the mother board, cooling the components that were overheating. This was good enough for gaming where the processor is only used intensely for short bursts [to load new game levels]. It heats up, but then the game proceeds normally and the processor has time to cool down while the video card does the hard work. With image editing, the situation is different. the processor has long hard tasks to do, and it heats up and slows itself down. it makes a lot of noise when the fan on the inadequate heat sink reaches 100% and stays there.
I finally realized that it would be OK to use the large noctua c14s heatsink with the fans blowing the hot air onto the mother board. It just seemed wrong to get all that heat from the cpu, and blow it right back onto the hot motherboard components. I solved this problem by increasing the amount of air A LOT. I used the mellow 140 mm a14 fan against the mother board, and the very noisy NF-A14 industrial PPC-3000 PWM fan on the outside. I removed the mellow 90 mm fan that exhausts the case near the processor, and replaced it with the very aggressive and noisy fan that comes stock with AMD processors.
for fan control, i had to use an aftermarket program that is not included in windows or mac operating systems. It is able to look at temperatures inside the computer, and base fan speeds on the maximum temperature averaged over a period of time. This is actually very important. while gaming, the fans must be aware of the temperature of the gpu, the cpu, the memory and the drives. the fans have to speed up to keep the hottest component cool. It does not matter how much noise this makes, as a slowing of the game is just not acceptable. So, I put the industrial fan on the outside of the heatsink and the aggressive fan that exhausts the case on the same fan circuit. they do not run at all when temps are normal. The fan on the motherboard side of the huge heat sink is plenty to keep the cpu cool. The 2 140 mm fans at the bottom of the case change the air in the case plenty fast. But, during gaming, when the gpu becomes a 350 watt heater and the cpu becomes a 200 watt heater, the industrial fans kick on. It is not noticable then, because zombies are chasing me all around, and my tiny home is being rocked by massive explosions. the 2 industrial fans ramp up in speed, and blow a remarkable jet of hot air across the room.
The cerberus case is set up for 2 120 mm fans at the bottom, but 140 mm fans fit if they have screw holes like the 120 mm. noctua has 2 types of fans like that: a general purpose round frame grey fan and a brown fan intended to fit on heat sinks with 120 mm fans. the fans can be mounted with screws or with special silicone fasteners that they include. wherever one can use the silicone fasteners, i do, because the fan will run silently at low rpm in that case. The fan can vibrate a little without rattling the metal of the case. Noctua has several ways of reducing noise in the case, including inventing special plastics and coming up with new ways to make plastic parts that fit like finely machined metal parts. The builder of computers does not need to learn all about fan design. they just need to pay 30 bucks a pop for each Austrian fan.
i had been using a mini itx mother board in this case, even though it is able to fit a micro ATX board. I found some problems with such a compact build, so i invested in an inexpensive micro atx mother board, the ASUS Prime Z690M-Plus D4. This board is not full of expensive attractions. instead, it has 3 simple m.2 slots arranged flat on the pcb, and the area around the cpu is not built up tall as it is on the smaller motherboards. Thus, the memory, and the m.2 drives and the other hot components on the board get plenty of wind from pretty much any fan in the case.
the larger board also makes it easy to get into the case with fingers, and make use of fan headers, m.2 drives, and other things without much disassembly. Of course, it allows 4 memory sticks instead of 2, or much more room around a half empty memory stack for great cooling.
After watching about a thousand you tube videos, from super users like optimum tech, i became confident enough to strip away the fan shroud and 3 fans from my rtx 3080, and replace that with 2 Phanteks T30-120 fans. These extra thick fans drive much more air through the huge heatsink of the asus tough gaming card. It is absurd how cool it runs now, with 4K gaming in the lower 60s C. i can not imagine water cooling a 350 watt video card when this simple modification is so simple and allows such quiet operation. In this case, there is plenty of room for 140 mm case fans beneath the modified gpu.
I removed the data center drive, to further increase airflow and lower gaming temps. Also, the machine runs noticeably faster without the pauses for the drive to start up. I cable managed the result to create large areas of unobstructed airflow. I added an m.2 drive to the empty 3rd slot, to make more storage after removing the huge drive.
This build still struggles with the 2 16 gig ram sticks that i started with. I have purchased the newer 13 generation I5 processor, and set up a graphics workstation using 2 32 gig memory sticks. The smaller memory and lack of hard drive space make this a dedicated gaming and entertainment machine that can tackle small image editing jobs. When needed, the data center drive is attached as a USB 3 external drive. It is actually not any slower than it is in the case, and adding it brings back the system pauses that are no longer very acceptable.
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