Wednesday, July 8, 2020

Intel stock CPU cooler vs. Cooler Master Hyper 212 EVO

Two or three years ago I bought Cooler Master Hyper 212 EVO cooler for my i5-4690k processor, but I never took the time to actually install it until now. I was using the stock Intel cooler, the thin aluminium one with a copper core, ever since I bought the new computer in late 2014.

I used the included thermal paste when I installed the new cooler. I used my AC to bring the room temperature down to 24°C when testing and removed the case side panel. I used CPU-Z stress test to keep the processor at 100% load and HWMonitor to keep track of the temperatures.

With Intel stock cooler the idle temperatures were around 30-32°C. After 10 minutes of stress test the maximum reported temperatures were 74-80°C depending on the core. The maximum fan RPM was 1860.

With Hyper 212 EVO cooler the idle temperatures were around 24-26°C. After 10 minutes of stress test the maximum reported temperatures were 45-51°C depending on the core. The maximum fan RPM was 1300. So, with default settings in idle the difference is around 5°C and during stress test it is around 30°C which I did not expect.

Then I repeated the test with fans set to "silent mode" in BIOS, where they only spin at 750 RPM, and even then the maximum temperature goes only to 55°C.

Then I tried overclocking the CPU to 4.4 GHz (stock is 3.5-3.9 GHz) with fan running at only 950 RPM and the temperatures went only up to 71°C, so I might even go for 4.5 GHz with higher RPM.

I was really surprised with the difference on default settings compared to the stock cooler and how well the new cooler can handle even overclocking.

Saturday, May 30, 2020

Lenovo G580 - first time cleaning after 7 years

My mother's Lenovo G580 laptop from 2013 started to sound like it will take off even when just watching videos online. Using Hardware Monitor program I could see it is hotter than it should be. I never tried disassembling a laptop before, but it was getting on my nerves, so I decided to do it. Luckily there are several videos available on YouTube showing the whole procedure.

I bought thermal paste (Arctic MX-2) and I also bought a 120 GB Western Digital Green SSD in hope it will speed up the laptop a little bit and I could use the 500 GB hard disk from the laptop for myself, since she doesn't really need any storage at all.

It is ridiculous I had to disassemble everything to get to the fan, it should have been designed better. As you can see the fan exhaust was completely blocked by dust. There was only a little 1 mm hole on the left where air could get out. I cleaned everything, applied new thermal paste and put in the SSD.

When watching YouTube or a 1080p movie in VLC the CPU temperature was around 65°C before, now it dropped to around 50°C. Room temperature was around 22°C. The maximum CPU temperature I got while testing was now 20°C lower, from 78°C to 58°C. It is also important to mention that these lower temperatures are achieved with the fan spinning at much lower speed which makes the laptop more silent. I was very happy with the results.

Replacing the old hard disk with a new SSD did not make much of an improvement since the laptop is mostly used for web browsing, so the speed of the SSD is not really noticeable. The biggest bottleneck there are basically ads or ad blocking plugins slowing everything down. At least it is completely quiet and I got myself a 500 GB hard disk I can use to store my stuff.

After everything was done I realized I could have also replaced the 2 core/2 thread Intel Pentium 2020m CPU with a better 2 core/4 thread i5 CPU which can be found for cheap now. It is not really necessary since the laptop still performs perfectly fine. The only use case where it fails are x265 encoded 1080p movies, where it can reach 100% processor utilization which causes stutters, but x264 encoded movies run without issues. Maybe in a few years when it is time to clean it again...

Tuesday, May 5, 2020

Baking a GPU in the oven - Part 2

Last September I wrote about how in May 2019 I had issues with my old Sapphire R9 270X GPU from 2013 and how I fixed it by baking it in the oven and how it was working with no issues for months.

Now I have to report that the GPU worked for 8 and half months in total, until February 2020, when it would again give only black screen when in Windows. I played and finished 8 games during that period with no issues, so it did serve its purpose well after being baked.

After making a short break from more demanding games and using my integrated Intel GPU for about a month, I baked the R9 270X again in March, this time for 10 minutes at 200°C. To my surprise it worked again. Unfortunately I managed to play and finish only 2 more games this time before I got a black screen once again, two days ago. So, this time it only worked for one and a half month.

I baked it again! At 200°C, but I left it inside for 15 minutes this time. After playing around with the oven thermostat a bit, I'm not sure how well the oven and the thermostat even work and if the temperatures are accurate. Nevertheless, it fixed my GPU again! Now, let's see how long will it last this time...

Sunday, February 16, 2020

Dungeon Siege - high resolution textures (ESRGAN) - Part 2

After more than 4 months of work I have uploaded the texture pack for Dungeon Siege that contains 3929 updated textures and is 5.97 GB large (compared to original 700 MB). All terrain textures have been updated, 750 world objects and decals, as well as bosses and some larger enemies and NPCs.

No custom textures have been used, everything is based on original textures. I think the new textures preserved the original look very faithfully. You can watch the comparison video on YouTube and download the texture pack on ModDB:

This is the first time I hit limitations of 32 bit programs. First when I went to pack the textures into dsres files (think of it like Dungeon Siege rar archives), the program would stop when hitting 4 GB. Then the game would not load dsres files larger than 2 GB. Luckily the game was designed to load multiple dsres files. It is surprising all this even works, considering the increase in size. One fun fact; game originally supported screen resolutions only up to 1024x768, but now many texture files themselves are larger than that at 1024x1024.

Probably more than 99.9% of textures were updated using the "Misc" model. "Misc" is a fantastic universal model, the author "Alsa" did an amazing job. Other models used were "Manga109Attempt", "Skyrim Wood" and "Ground". Manga109Attempt was used for things that are supposed to look cartoony, like paintings or carpets with colorful designs.

A lot of work went into fixing and tweaking the original textures in GIMP to prepare them for ESRGAN for optimal results. Original textures were often blurry, some were too pixelated, others had compression artifacts that would be further exaggerated when upscaling. Simple use of noise and denoise filters on original textures produced great results. Also some sharpening of original textures before sending it to processing can help a lot.

 Blurring pixelated parts and adding noise to original texture before upscaling improved poor original result.

Skyrim Wood model was useful in few occasions where the original texture was extremely grainy, this model gives a "grainy blur" result which worked well on few tapestry, some carpets and statues.
 Skyrim Wood model.

Sometimes models give good results for one part of texture, but fail in other parts. For the terrain around Fortress Kroth I had to cut the grass from the "Ground" model results and copy it over grass from the "Misc" model.

Adding a bit of HSV noise in GIMP to original texture can add a bit of detail in the final texture. In this example this helped making snow look less like shaving cream and more like snow. It is a very subtle difference. Adding too much noise would make it look more like sand.

In a completely opposite example denoising the swamp floor textures before using ESRGAN helped them look more like grass with leaves compared to original result that lacked any clear detail. Unfortunately for me GIMP denoising filter often creates dark spots in corners of the image, so I had to manually fix that for each texture, it was very annoying and time consuming.

To finish this on a positive note here is an example were the algorithm and the Misc model did an amaazing job without me doing anything. This is a very cery complex texture yet the ivy came out looking excellent, with defined individual leaves.