The "Quick Questions that does not Deserve a Thread"...Thread. V4
7,787 replies, posted
So I'm trying to figure out what UPS I should get for my server, but there's this one thing that's hurting my brain that I need to know before getting one:
[B]how in the goddamn world do I figure out the power factor to convert watts into VA (and the other way around)[/B]
And in simple terms, please. All of the guides for calculating the power factor hurt my brain. >_<
[QUOTE=BlueAndGray;43455566]So I'm trying to figure out what UPS I should get for my server, but there's this one thing that's hurting my brain that I need to know before getting one:
[B]how in the goddamn world do I figure out the power factor to convert watts into VA (and the other way around)[/B]
And in simple terms, please. All of the guides for calculating the power factor hurt my brain. >_<[/QUOTE]
Unless I am [i]seriously[/i] misremembering my electrical training, Wattage = Voltage * Amperage
[QUOTE=Nsybouts;43433757]I haven't bought a platter hard drive for several years now, but I remember that Samsung spinpoints used to be the bees knees. Sadly, they don't make them anymore.
What is currently the most reliable and cost effective 1TB< drive on the market right now.[/QUOTE]
Reposting from the last page.
[QUOTE=gman003-main;43456048]Unless I am [i]seriously[/i] misremembering my electrical training, Wattage = Voltage * Amperage[/QUOTE]
I know that's how watts are calculated, but I'm looking for VA (volt-amperes), which, from what I know, can be different (but close to) wattage. A lot of UPS have their capacity rated by VA and not watts.
[QUOTE=BlueAndGray;43459015]I know that's how watts are calculated, but I'm looking for VA (volt-amperes), which, from what I know, can be different (but close to) wattage. A lot of UPS have their capacity rated by VA and not watts.[/QUOTE]
[quote=http://www.power-solutions.com/watts-va]All Information Technology equipment including computers uses an electronic switching power supply. There are two basic types of computer switching power supplies, which are called 1) Power Factor Corrected supplies or 2) Capacitor Input supplies. It is not possible to tell which kind of power supply is used by inspection of the equipment, and this information is not commonly provided in equipment specifications. Power Factor Corrected or PFC supplies were introduced in the mid 1990′s and have the characteristic that the Watt and VA ratings are equal (power factor of 0.99 to 1.0). Capacitor Input supplies have the characteristic that the Watt rating is in the range of .55 to .75 times the VA rating (power factor of 0.55 to 0.75).[/quote]
I don't fully understand the electronics of this but if your PSU in your PC is PFC (they generally will market it as PFC if it is) VA ~= W. If not, you might need a UPS that has a VA which is 45%-25% larger than the wattage your PC takes. I could be wrong.
[QUOTE=Adamhully;43453799]So the one physical server has multiple internal IP addresses? E.G. (192.168.0.0). What about the external IP that is given to you by your ISP? Let's say one of the virtual servers is running apache and someone wants to access the webpage, they will search for [url]www.example.com[/url] which will point to the external IP of the physical network under port 80.
The owner of the second VM has a similar service set up, so how does the physical server differentiate the two requests and forward them to the correct VM? Would they need multiple external IP addresses from the ISP?[/QUOTE]
If you want to serve multiple servers on the same port from inside the internal network (LAN) to the outside (WAN), you'll require multiple external IP's for each of the virtual servers. You can do some tricks with multiple domains like described below (And still one IP), but I'm unsure if any virtualization technology supports this solution.
If you're only planning on hosting multiple webpages (With different domains, but one IP), then the usual method is using "VirtualHosts" (see [URL="http://httpd.apache.org/docs/2.2/vhosts/examples.html"]Apache2: VirtualHosts Examples[/URL]). This works by checking the requested domain in the package headers instead of the IP, and forwards it accordingly.
[QUOTE=Shadaez;43459433]I don't fully understand the electronics of this but if your PSU in your PC is PFC (they generally will market it as PFC if it is) VA ~= W. If not, you might need a UPS that has a VA which is 45%-25% larger than the wattage your PC takes. I could be wrong.[/QUOTE]
Err, maybe I should've looked a little more. Some companies like APC actually have an online tool that finds a UPS by wattage. I'm not sure if I should trust that though, should I? Also, I might run some networking stuff off of it (unless that's a bad idea too).
Slight issue, my PC flickered black and then the screen went black for 3 seconds before it reset itself. Upon restarting the taskbar and background colour/themes was default before restoring to normal.
This has only happened once before a year ago and I had a feeling it was a GPU related issue, (mainly because it happened after I closed Battlefield 3)
Everything else is upto date, and the PC gets cleaned twice a year. I got a feeling that, just in general I may need a new graphics card.
Quick specs:
Intel Core i7 2600K @ 3.40GHz (Temp 32°C)
ASUSTeK COMPUTER INC. P8Z77-V (LGA1155) (temp 28°C)
NVIDIA GeForce GTX 460 (temp 40°C)
[QUOTE=Anderen2;43459577]If you want to serve multiple servers on the same port from inside the internal network (LAN) to the outside (WAN), you'll require multiple external IP's for each of the virtual servers. You can do some tricks with multiple domains like described below (And still one IP), but I'm unsure if any virtualization technology supports this solution.
If you're only planning on hosting multiple webpages (With different domains, but one IP), then the usual method is using "VirtualHosts" (see [URL="http://httpd.apache.org/docs/2.2/vhosts/examples.html"]Apache2: VirtualHosts Examples[/URL]). This works by checking the requested domain in the package headers instead of the IP, and forwards it accordingly.[/QUOTE]
Thanks that seems to make sense.
I'm trying to set up a way to control my local server from my home computer, is TightVNC a good choice for that? Seems to be a popular VNC client.
Tried TightVNC and wasn't disappointed, gonna go with that!
[QUOTE=Amez;43466155]I'm trying to set up a way to control my local server from my home computer, is TightVNC a good choice for that? Seems to be a popular VNC client.
Tried TightVNC and wasn't disappointed, gonna go with that![/QUOTE]
I stick with RDP since it's built into Windows. If I'm controlling a Linux server, I use SSH.
Quick wifi question: can a device connected to a wifi network use the password you give it to tap into and/or tamper with the data travelling to/from other devices on the same network? Obviously the two devices can talk to each other because they're on the same network, but what all exactly can one do to another?
I'm not really asking how to do it if it can, but more or less whether there's any serious risk associated with letting something connect to your wireless network. (Viruses that'll use this to spoof webpages other devices see so you unknowingly give it your passwords, etc)
I'm guessing this would come down to what vulnerabilities exist in the software each device is running?
[QUOTE=Zeke129;43470699]Quick wifi question: can a device connected to a wifi network use the password you give it to tap into and/or tamper with the data travelling to/from other devices on the same network? Obviously the two devices can talk to each other because they're on the same network, but what all exactly can one do to another?
I'm not really asking how to do it if it can, but more or less whether there's any serious risk associated with letting something connect to your wireless network. (Viruses that'll use this to spoof webpages other devices see so you unknowingly give it your passwords, etc)
I'm guessing this would come down to what vulnerabilities exist in the software each device is running?[/QUOTE]
You can redirect any unencrypted ebsite with dSploit for example. o yes.
Which tray is recommended for mounting a SSD to a desktop case?
I'm building a HTPC, what would be the cheapest low power processor that would be capable of very basic browsing and watching Blu-ray movies from a disc? What about motherboard, does it matter?
I've never built a PC without an actual GPU so I just feel kind of confused, even after trying to search online for a solution.
So I recently got a new GPU and PSU, (Powercolor Radeon HD7870 GHz Edition OC 2GB and
Corsair GS-700 V2 Power Supply), anyway we had to move cases since in my old case it was Overheating, so we put it into my brothers old case, since it has more fans than my old one and it seems to be working fine (We actually had to get a new motherboard which is an Asus P8H61-M LE, since my old one which is a B75 Pro3-M Asrock had the pins bent where the CPU goes).
Anyway when I play Far Cry 3 Blood Dragon, I can see my CPU going to about 68C (saw this in speccy may I add), it use to go a tad higher so we put more thermal paste on, my brothers say it is fine, but I am still concerned.
The CPU is an i5-3570k, forgot to mention.
[QUOTE=Xonax;43472598]So I recently got a new GPU and PSU, (Powercolor Radeon HD7870 GHz Edition OC 2GB and
Corsair GS-700 V2 Power Supply), anyway we had to move cases since in my old case it was Overheating, so we put it into my brothers old case, since it has more fans than my old one and it seems to be working fine (We actually had to get a new motherboard which is an Asus P8H61-M LE, since my old one which is a B75 Pro3-M Asrock had the pins bent where the CPU goes).
Anyway when I play Far Cry 3 Blood Dragon, I can see my CPU going to about 68C (saw this in speccy may I add), it use to go a tad higher so we put more thermal paste on, my brothers say it is fine, but I am still concerned.[/QUOTE]
CPU should probably be more like 60C max. More thermal paste isn't always better as a thicker layer makes it more difficult for the heat to transfer to the heatsink. Are you using the default fan or a aftermarket cooler?
[QUOTE=halflife_123;43472641]CPU should probably be more like 60C max. More thermal paste isn't always better as a thicker layer makes it more difficult for the heat to transfer to the heatsink. Are you using the default fan or a aftermarket cooler?[/QUOTE]
Default, I am looking at this as a replacement.
[url]http://www.pccasegear.com/index.php?main_page=product_info&cPath=207_23&products_id=18944[/url]
ports are blocked on a router I can't touch, what can I do to bypass that?
[QUOTE=garychencool;43474541]ports are blocked on a router I can't touch, what can I do to bypass that?[/QUOTE]
If you mean blocked, as in no incoming or outgoing on some ports and the application has no port setting then you could use an reverse proxy to forward the service towards the open ports (ex. SSH-Tunneling if you have an external server)
If you're thinking on blocked as you cannot forward traffic through them (And you want to host an server or something) then you're pretty much out of luck. (Correct me if I'm wrong).
Or, you could probleary make some dirty ssh-tunneling towards an computer with an open connection. But if you had such a computer, then the easiest way would just be to host the server on that one.
Edit: Actually, I have no idea myself, but isn't it possible to host a server behind non-forwarded ports if you use NAT-Punchthrough?
Does anyone know of macro software that can move the mouse small amounts back and forth indefinitely until it is told to stop?
[QUOTE=rhx123;43477785]Does anyone know of macro software that can move the mouse small amounts back and forth indefinitely until it is told to stop?[/QUOTE]
Autohotkey.
Is there a way around ID3 tags being locked on some mp3s?
Does anyone know of a good PSU wattage calculator? I've always been kinda lost in figuring out what wattage I need.
[QUOTE=bs8814;43483705]Does anyone know of a good PSU wattage calculator? I've always been kinda lost in figuring out what wattage I need.[/QUOTE]
[url]http://www.extreme.outervision.com/psucalculatorlite.jsp[/url]
My CPU (an Intel Core i7 930 at 2.8GHz) has an average temperature of about 60c when just using Chrome. Is this a bad thing? And if it is, how can I fix it? I've never really gone snooping around inside my computer (I've had it for 3+ years, methinks), the most I've done is dust off some vents on the front about once a month or so. If I need to go in and take a can of compressed air to it, I may need to have a professional (or just someone who knows what they're doing) opinion and advice on popping this computer open.
[editline]10th January 2014[/editline]
I just tried to open Skype and it shot up to 90c and won't go back down. Holy shit. Restarting computer.
[editline]10th January 2014[/editline]
Alright, I'm on my iPad right now, giving my computer some time to cool down. It's never done this before. I don't know what cooling system I have, but it sounds like I've got nothing more than just fans.
Is a Xeon E3-1270v2 processor good for a small server? There won't be very much load on the server, but it'll probably run a few different server programs at the same time (web server, small database).
My friend has a older Pentium Core Duo computer, which has a 32 bit Windows 7 copy installed. The thing is, he wants to play this Minecraft mod called Feed the Beast, but due to the fact that his OS is 32 bit on a 64 bit system, the RAM usage is limited to 1 GB, which is just not enough for the game to run.
He's got a lot of files and doesn't want to lose them. So is performing a upgrade from 32 bit to 64 safe?
[QUOTE=Merijnwitje;43496094]My friend has a older Pentium Core Duo computer, which has a 32 bit Windows 7 copy installed. The thing is, he wants to play this Minecraft mod called Feed the Beast, but due to the fact that his OS is 32 bit on a 64 bit system, the RAM usage is limited to 1 GB, which is just not enough for the game to run.
He's got a lot of files and doesn't want to lose them. So is performing a upgrade from 32 bit to 64 safe?[/QUOTE]
32-bit Windows supports up to 4 GB of RAM. If you choose to reinstall Windows, since the drive is already formatted NTFS, all the files will just end up moved into a Windows.old folder.
[QUOTE=deadeye536;43496401]32-bit Windows supports up to 4 GB of RAM. If you choose to reinstall Windows, since the drive is already formatted NTFS, all the files will just end up moved into a Windows.old folder.[/QUOTE]
Sorry I forgot to clarify this: Due to the fact that his Java runtime is 32 bit (and the rest of his system), the maximum memory usage is limited to 1 GB. Which is not sufficient for the game, making it crash when it launches.
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