Bad RAM stick that still works?

I have 2 separate computers, one for my gami g and one for server hosting, recently my server pc was having isssues and my server kept crashing, i run 2-2gb RAM sticks, since the servers were having issues at first i thought it was from heat exauhstion, alright, took the right side case panel off checked it frequently, nice qnd cool in there… No problems, still crashing, ok, maybe its a RAM issue, restarted the pc, nope still crashing, ok, my minecraft server runs 2gb allocated memory, its not in use but its automatically using that to run, close mc server, unturned server no longer crashes. Ok wtf? Has to mean i'm at 2 gb of memory, so one of my ram sticks failed? Ok test both ram sticks, pc boots up when either is in, but runs extremely slow and choppy with one of them, is it possible its a bad stick, yet it still works? Or is there another issue?

My minecraft server only works for me, why?

I don't understand it, it isn't my friend's firewall, nor mine, i can long into my server using direct connection and it works, but not for ether of my friends, what could i check?

this is not a hamachi sever.

Can't login to mojang/minecraft?

I'm 100 percent I'm using the right info. I have tried to reset the password and it is still telling me wrong info. I tried to make a new account and see if I could log in, this also failed. I tried rebooting just to be sure, another fail. The servers are not currently down, and the support team has yet to reply, so I'm trying to find a soultion on my own.

Why is there a conflict on my server but not SMP?

Hi, my friend and I recently made a modpack for Minecraft and I'm running the server on my PC and we can both play the mods fine in Singleplayer, but when we go to the server, all of the mods are present, but none of the items from any of the mods are working. When we try to craft the items, the block shows in the output of the crafting table when we put the recipe in, but when we try and click the item, it doesn't let us. We aslo couldn't open up Baubles Inventory or the Tinkers' Construct Inventory. Mods we're using: Treecapitator, Ars Magica 2, Applied Energistics 2, Biomes o Plenty, Blood Magic, Botania, Buildcraft, Ender IO, Extra Utilities, JurassiCraft, LLibrary, Mantle, NEI, Thaumcraft, Witchery, Animation API, CodeChickenCore, bspkrs Core, Baubles, and Code ChickenLib. We're using 1.7.10 for all of the mods.

MineCraft keeps crashing when I go on single player and multiplayer servers?

So I got a program that cleans junk and stuff off your PC and as soon as I got some stuff cleared and opened MC I go onto a single player world, went AFK (away from keyboard), and it crashed as soon as I got back. I tried reopening it and going on multiplayer and it just crashed within five seconds of being there. I used the MC Installer to fix any issues that were going on and it still crashed. Here's the crash report (or whatever it's called) that came up in the launcher when I got onto a multiplayer server:

A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x2787ca86, pid=15232, tid=12596
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) Client VM (25.25-b02 mixed mode windows-x86 )
# Problematic frame:
# C [ig7icd32.dll+0x5ca86]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Alley Cat\AppData\Roaming\.minecraft\hs_err_pi…
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/.../crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

Minecraft server port forwarding and routers?

I want to make a minecraft server (not hamachi) but want it to be fast. I'm very confused about port forwarding and need some help. Should or can i buy a router just for running a minecraft server since i already have lots of people using my current router and its very slow at sometimes. Please help me and if you can explain how port forwarding works.

Minecraft server won't connect?

I'm new to the whole owning my own server thing and i set one up a while ago and it worked fine but minecraft has been updated so i downloaded a jar file for the 1.8.8 server so its the same as minecraft but when i open multiplayer it try's to connect to my server but then after a few seconds red writing appears under the server name and it says "can't connect to server"

Can anyone help please, it'll be much appreciated.

I need 4Chan to raid somebody?

There's this Minecraft server that is full of trolls and me and my friends couldn't win against them. Is there a way that we could possibly get 4Chan to do a raid on their forum, maybe even find a way to DDOS their server or something so we can get the last laugh? I know nothing about this kind of thing.