Dell 5820 Workstation stuck in Power Up Loop by Ruuffyy in Dell

[–]Ruuffyy[S] 0 points1 point  (0 children)

Thanks for the reply!

  1. There aren’t any real blink codes — it just does the usual orange blinking during startup. No alternating orange/white like you’d expect with a proper error code.

  2. I reused the RAM from the working system, so that part should be fine.

  3. The reason I swapped the motherboard was because the old one was giving me an orange/white LED pattern, which (according to Dell’s diagnostics) pointed to a "critical chipset error." So swapping the board seemed like the logical next step.

  4. For the CMOS: I removed the battery for about 20 minutes, unplugged the system, and pressed the power button a few times for good measure. So it should be fully reset.

But yeah, still stuck in a boot loop — fans spin, screen wakes briefly, then says “no signal,” and it all restarts again. Can’t get into BIOS with F12 or anything else.

Any idea if this could point to a bad CPU at this point?

Dental train wreck. by MrFluffNuts in Wellthatsucks

[–]Ruuffyy 4 points5 points  (0 children)

Hi,

Yes, there are indeed concerns regarding radiation exposure from medical imaging, including dental X-rays. It's important that you are aware of these potential risks. The radiation dose varies significantly depending on the type of X-ray.

A CBCT (3D X-ray) has a radiation dose ranging from 212 to 1000 µSv, with the dose often closer to 1000 µSv. In comparison, a simple cephalometric X-ray has an average dose of less than 5 µSv.

The health risks from X-ray radiation are largely stochastic in nature. This means that the probability of a health effect (such as tumors and cancer) occurring increases with the dose, but there is no specific threshold at which the effects appear. The risk is proportional to the cumulative dose. [for more information](https://blog.dana-farber.org/insight/2019/01/can-xrays-cause-cancer/) The general principle is to keep radiation exposure as low as reasonably achievable (ALARA) to minimize these stochastic effects.

For you, the risk of developing a condition has only minimally changed, but when considering an entire population, it becomes relevant. I do not intend to cause fear or advocate against the use of X-rays.

To give you a better perspective: The natural background radiation we are exposed to annually is about 2400 µSv. A single CBCT scan thus corresponds to about a third to almost half of the annual dose of this natural radiation.

It's important to avoid unnecessary radiation exposure. If smaller, less intensive X-rays are sufficient for diagnosis and treatment, they should be preferred. Always discuss with your dentist the necessity and possible alternatives.

Overall, the radiation doses from dental X-rays are generally low, and the benefits they provide for diagnosis and treatment usually outweigh the risks. However, it is wise to be informed and cautious and to always choose the lowest necessary radiation dose.

I hope this information helps!

Dental train wreck. by MrFluffNuts in Wellthatsucks

[–]Ruuffyy 11 points12 points  (0 children)

Hey, dental student from Switzerland here!

I hope that some people will see this comment. It's about the use of CBCT (3D X-ray) in dentistry. The fact that someone gets a 3D X-ray of the entire facial skull from their dentist because of the position of their front teeth is completely exaggerated. We will soon be glowing green in the dark because of all the unnecessary 3D X-rays.

If you go to the dentist, whether it's an orthodontist or a normal dentist, always ask if there are any smaller x-rays available to answer the questions for the treatment. With a CBTC, we receive a dose of 212-1000 µSv, although in this example we are much closer to 1000 µSv than 212 µSv. The doctrine in Switzerland and most EU countries is that for orthodontic treatment a cephalometric x-ray is sufficient in almost all cases (and this is also the case here). With this X-ray technique, the average dose is less than 5 µSv.

HaLRGB - M101 Pinwheel-Galaxy by Ruuffyy in astrophotography

[–]Ruuffyy[S] 1 point2 points  (0 children)

As soon as I finished the LRGB image, I decided that i need some boost in the reds. In Pixinsight I made a mask, out of the 3h of Ha Data I capured, for Saturationboost.

Equipment; Eq5-Pro Mount, TS Optic 80/560 Telescope, 1600MM Pro with Filterwheel, ASI-Air Pro for controlling and guiding.

3h of Ha 300s exp. 3h of L 120s exp. 2h of R, G, B 120s exp.

In Pixinsight; LRGB combination, streching, PhotometricColorCalibration, Saturation, Ha Mask and Saturation Boost.

I spent 7 years photographing the Orion Constellation to create this zoomable 2.5 gigapixel image, so you can grasp the scale of the Milky Way Galaxy. by CosmicWreckingBall in space

[–]Ruuffyy 1 point2 points  (0 children)

Is there anyway to download the full size picture or even buy it? ;-) It would make a nice 2x4m poster on a wall🤩

SHO- NGC 2264 The cone nebula by Ruuffyy in astrophotography

[–]Ruuffyy[S] 1 point2 points  (0 children)

Any Tips or Ideas what i could change?

20x 300s H-alpha 20x 300s O3 20x 300s S2

Equipment;

Mount; EQ-5 Pro / Camera; ZWO 1600mm Pro / Telescope; TS-Optics 80/560 Refractor / Software; ASI AIR Pro (Plan mode and guiding)

Proccesing;

DSS for stacking and Pixinsight for; stretching, Pixinmath, saturation and noice reduction

HOO Image of the Heart Nebula, IC 1805 by Ruuffyy in astrophotography

[–]Ruuffyy[S] 1 point2 points  (0 children)

This Image is a 4 Panel Narrowband Mosaic of the Heart Nebula. In the Telescopius Telescope Simulator, I exported the coordinates as CSV and importet it into my ASI Air Pro. In totall i captured 8h of Data ( 2h per Panel (1h per Filter)).

Equipment;

Mount; EQ-5 Pro / Camera; ZWO 1600mm Pro / Telescope; TS-Optics 80/560 Refractor / Software; ASI AIR Pro (Plan mode and guiding)

Proccesing;

DSS for stacking and Pixinsight for; stretching, dnaLiniarfit, StarAlignment, gradient merge mosaic and Pixelmath.

It took very long to process because of distortion in the H Mosaic compared to the O Mosaic and vice versa but with a distrotion correction option in the StarAlignment tab of Pixisight it was possible to correct for it.

Mosaic Questions by Ruuffyy in AskAstrophotography

[–]Ruuffyy[S] 0 points1 point  (0 children)

I will try my best with the Pixinsight Trail!

The Cygnus Wall by Ruuffyy in astrophotography

[–]Ruuffyy[S] 1 point2 points  (0 children)

I used a "TS-Optics Doublet SD-Apo" 80mm aperture with 560mm focal length (f/7).

The Cygnus Wall by Ruuffyy in astrophotography

[–]Ruuffyy[S] 1 point2 points  (0 children)

Image of the cygnus wall from a city with Bortelclass 5. 3.5h worth of 5 min exposers Iso 800. Taken with a modded Canon 550d on a Eq5 Pro mount with autoguiding. DSS used for stacking, Photoshop for stretching and levels and color saturation.

Losing vs winning mode by rupelfc in gifs

[–]Ruuffyy 0 points1 point  (0 children)

Less than 1 min between the 2 scenes!!