jmagid

Thanks you for helping my paranoia. Did that as well as ran malware bytes before writing this post, nothing came up!

Am I being paranoid. This afternoon I got an email to one of my not so regularly used email address from an old manager that use to contact me via that older email address. I still do talk to this person just during the winter due to career field. Without really looking to much into it I opened the email and clicked the link. The second I clicked the link chrome informed me that the site I was trying to access was not secure. Once I saw this, I backed out immediately and took a closer look at the email. No, I did not continue to the site. The sending email is not the correct email, the link is some random site that supposedly does image sharing. Either way I just need to know, does chrome block any/all activity to the unsecure site on my end unless I continue to the site itself, or is there damage already done.

So given this, if the PDU has 8 outlets would all 8 outlets each be able to supply up to 15/20 amps?

So, I am a little confused. I know that a server PDU is like a standard power bar but significantly better in just about every way. I know that for a server PDU there are a mass supply of different variants such as metered, switch, etc, but for ease of trying to understand this I am going to explain my self with just a basic server PDU. As far as I can tell both a regular power bar and a server PDU will just plug in to your standard wall outlet and provided power to each outlet on the bar itself, hence distributing the power. Here is where my confusion is, I understand that both will “distribute” the power, a normal power bar will use whatever power is needed from each of its outlet and so on until the max draw from the wall, if it comes to such. But does a server PDU take the output from the wall outlet and distribute the max draw capable from the wall outlet to each output on the PDU, or are they just more efficient at splitting the power to each outlet? i.e. if a PDU has 8 outlets and a wall outlet is capable of drawing 15 amps from the wall, does each outlet on the PDU able to draw 15 amps?

Recently, I purchased two Supermicro server motherboards and chassis for an at home HPC server that would be used for work, more or less to say that I could. They are as follows: Supermicro H8QG6-F Motherboard with 4x AMD Opteron 12 core processors Supermicro 828-14 CSE 828 with PSU After assembling both server rigs as stand-alone units to test if they are working, I got one server to POST as well boot. However, the second server that I am building is having trouble. I get a continuous beep, as far as I know this means that there is a hardware failure. The server does not boot and I am not able to get into the BIOS as far as I can tell. I do not hear the fans spinning up at all nor does it look like anything outputs to the screen. I have switched out all four CPU’s with known working ones, clears the CMOS battery, and replaced the RAM and both PSU’s with known working modules as well. I am unsure of what my next steps would be on debugging this. I would like to avoid switching the motherboard from the none working server to the working server as the motherboards were not necessarily easy to get into the chassis.

What exactly is considered illegal here? Can I really request a refund for a laptop that was bought nearly 4 years ago? Wouldn't the more likely option be to replace it with a new one? If they did replace it, do you think it would be likely to be of same spec?

In 2016 I bought a Dell XPS 15 9550 with the specs: - Intel I7-6700HQ - Nvidia GeForce GTX 960M - 512GB M.2 PCI SSD - 16GB DDR4 2133 (2x8GB) I also purchased the four-year premium support plus warranty that cost me near $500 dollars alone. Background: I purchased the laptop with the intent to use it mainly for school with some very light gaming (less then 10 hours a month). I went to school for computer engineering and did not use this computer for any visual rendering or heavy simulation, almost everything I did was programming. Ever since I have purchased this laptop, I have had nothing but issues with the machine, most of which were minor issues but were present none the less. This include drivers just not installing properly, failing to install, crashing the laptop or blue screening once near complete (~90%). I have attempted to fix the problem via a fresh install, but this has not fixed the problem, merely bandaged it at best. I should also note two other things. One, I have done a total of four fresh installs on this machine, one with dell tech support. Two, of all the time that I have attempted to install discord on the laptop only twice have I had it successfully install on the laptop. The latest fresh install and the first fresh install that I did. Why I am complaining: There are handful of reasons for this: One: My current desktop setup is as follows: - AMD FX-8320 Overclocked to 4.7GHz at 1.42 volts - 32GB DDR3 1333 (4x8GB) - NVidia GeForce GTX760 - 3x HP S600 512GB SSD in Raid 0 (used only for programs) - 4TB, 1TB, 160GB HHD for storage Now while I understand that my desktop is indeed overclock, it uses a seven years old CPU and GPU. How on gods earth does my desktop feel like a supercomputer compared to my laptop. I should also note that my desktop does not use an AIO I am using an air cooler. Please if there is actually reasoning to why this is case please explain why. Two: As I mentioned I have purchased the premium support warranty and did in fact contact them to warranty the laptop. Of course, they had to run their test to ensure that it was worth sending it in. After explaining the above to the dell rep, they performed another fresh install, this is fresh install four. All was going well until the driver installation process. The laptop straight up bluescreened in the middle of installing the drivers. After rebooting into windows some of the drivers that were completed did in fact install, but others did not. When going to attempt to download install the rest of the drivers, it would attempt to re-download them but that it. As of now I do not have all the current drivers installed on my laptop, they will not download and install. Three: When first talking to tech support, before they started on even mentioned a fresh install. they looked at how much space I had free, how many programs I had installed on the machine, and the power plan that I had selected. They concluded because my laptop was on balanced performance mode, and not on high performance mode, and that I had to many programs, that was the reason it was so slow. I had around 120GB free of space, and I will admit there were a fair number of programs installed. Four: When talking to the rep after the fresh install and the blue screen issue, he asked “does the computer feel faster”. I responded yes but still feels like it is bottlenecked. I should note that nothing was installed on to this machine at this time, only the most recent windows updates and what ever drivers that completed to install that dell suggested, I did not install any third-party programs at this time. His response was to open task manager and show me that the CPU, GPU, Network and Disk usage levels were all normal and low. When he did this all that I had open was file explore and a notepad document, nothing else. If my laptop is acting slow in the state it is in, I am scared to try to install VS code and program something it might be unusable. I should also mention that when I asked why I am unable to install the drivers he stated that, I do not need all drivers. If they were important you would get them, and they would install… Five: This my just be me missing something, but I have never had this happened before. Last night I needed to format a micro SD card and install Raspbian OS on it. Formatting the SD card worked no problem, but I could not for the life of me install Raspbian on to this SD card from my laptop. I don’t know why. After struggling for about an hour I tried my desktop, and it literally took my two minutes to download and install Raspbian on the SD card. Six: After the latest fresh install I noticed that there was only 230GB of free space left on the drive, this is a 512GB M.2 SSD, I know that from factory there will only be about 480GB of usable space and I know that windows will take no more then 20GB, and If I assume 50GB of dell overhead program for diagnostics of what ever, I should still have around 400GB of free space, give or take 20GB. I have no other word for this other then how. Question: I don’t know what to do now, or what my next steps should be. The warranty is valid till the end of the summer, and from what I have been observing I like to use it, I did pay for it. Note: - Before someone question why I paid that much for a warranty, I would rather have it not need it the need it not have it. - When I refer to my laptop being slow, I know that over time, computer performance degrades. I am not saying that the computer is unusable, but it is notable slow. Taking time longer to do small task and fells as if a am only getting 30fps.

I thought that the rgb scale was from 0 to 255 or as i said 8 bit. If there were 8 bits per channel does that indicate the brightness dimming for each individual led colour? Edit: if this is true then that throws my final calculation off by a factor of 4 bits.

Your correct, in a perfect world, this would be implemented on a laptop, but at this point you have all got me started thinking if I was even possible. I'm mean in theory the 8k 60hz monitor would be the same as driving a 4k 240, just the panel speed is my thought of what would need to be reengineered for this type of display. I think.

Lets say I was able to get my hands on two 2080 ti's or two titan. A complete balls to the wall machine. Would the limiting factor still be compute power. I don't think that the cables will have limitations in this matter, personally, assuming that I did get a least DisplayPort 1.4. Would it now be a matter of how the display is being engineered, and will panel type really have an impact on the final results of the display in terms of resolution and refresh rate? In my logic all I am really concerned about is display all those pixels.

I have always dreamed of having a laptop with the best of both worlds, a 4k monitor and a 240Hz refresh rate. However, while I know this market would be somewhat niche, I have yet to find anything that even looks like the technology would be moving toward that direction. Now this is what I know, which isn’t much. What I Think I Know: Refresh rate: - Refresh rate is the amount of time a display will show an image with-in a single second. i.e. if a display has a refresh rate of 144Hz, the display will refresh the image displayed to the screen a total of 144 time with in that given second. Resolution: - Pixels are the individual “materials” that make up that image displayed to the screen. An FHD display is 1920 pixels by 1080 pixels or 2,073,600 pixels per image, a UHD monitor doubles the width and height to a resolution of 3840 pixels by 2160 pixels, or 8,294,400 pixels per image, and so on. Pixel Size: - Pixels are made up of one byte, or eight bits. This to control the RGB range of each pixel themselves. How every due to modern improvements with picture colour, a ninth bit was added to deepen greens and cyan colours, but due to most engineers preferring to work with even numbers ten bits are used instead of nine. I also read that majority or very high-end display use twelve bits per pixel. Side Note: I really am not to sure why there would need to do this as adding a ninth and tenth bit already add a lot more room for color accuracy. DisplayPort: - DisplayPort 1.4 has a max total bandwidth of about 32.4Gbit/s and a max total data rate of almost 26Gbit/s. As far as I know, Dell release the UltraSharp 32 UP3218K, the world first 8K 60Hz monitor that in order to even use the monitor, two display port cables must be used. Now I was not able to find the exact display port type in which the monitor must use, but I will assume DisplayPort 1.4. Logic: The Dell UP2218K has a total resolution of 7680 pixels by 4320 pixels, or 33,177,600 pixels per image. I will assume that this monitor uses twelve bits per pixel as I was not able to find anything regarding the number of bits per pixel used when engineering the monitor. If this monitor has twelve bits per pixel with 33,177,600 pixels to show, that is a total of 398,131,200 bits used per images shown. With a 60Hz refresh rate that total become 23,887,872,000 just under the limit of a single DisplayPort 1.4 cable. If the same logic is taken from the above and applied to a 4k 240Hz monitor the math comes out as, a width of 3840 pixels multiplied by the length of 2160 pixels to have a total image pixel count of 8,294,400. If we assume again that twelve bits per pixel were used to engineer this display the number would come out to 99,532,800 bits used per still image. If the display was 240Hz, that number of total bits used per second would be 23,887,872,000, The exact same number of total bits used for the 8k 60Hz monitor from Dell. TLDR: - Refresh rate if the number of new images being show per second. - A pixel standardly used eight bits, but we calculate with twelve bits being used. - DP1.4 max bandwidth of 32.4 Gbit/s and max data rate of sigh of 26Gbit/s - 8K display has 7680 x 4320 pixels or 33,177,600 pixels/image. Results with 398,131,200bits/image @ 60Hz results with 23,887,872,000total-bits/second. - 4K display has 3840 x 2160 pixels, or 8,294,400 pixels/image with 12bits/pixel results in total of 99,532,80bits/image @ 240Hz results with 23,887,872,000total- bits/second. The same as the 8K display mentioned. Actual Question: Now I know that there are limitations, and real-world expectations are not going to be what the theoretical max is, and that’s why I assume Dell is using two DisplayPort cables and not one. So, it leads me to ask what the limiting factor is here. Is it display panel type, which I know absolutely nothing about, wheatear it needs to be an IPS, LCD, LED, OLED or what ever other type of panel there is? Or is it GPU ports, there availability to DisplayPort 1.4? The raw computer power of the GPU needed to display these images that fast?