Yes. You should ignore it. You have installed more stuff on your system in the month between your first test and all these new tests. More junk on your computer will add to small, incremental slow downs, mostly because your CPU is now taking care of more tasks (which the GPU depends on).
Just like we suggested in your other thread, you should look to a dedicated hosting provider with a Xeon base. Most importantly because you will have a lot of lag and complaints on your weak upload link.
So the PC has an Ethernet cable to the wired router and then a second ethernet cable (or wireless connection) to the wireless router?
Which computer is giving the DNS error? The PC?
He is likely worried about it because of the same reason people worry about their CPU being 2 degrees warmer or their download speed being 2% slower. People read numbers and become super focused on them.
He ran the benchmarks a month apart. Long enough for him to install new hardware or...
Are the wireless router and the wired router connected to each other in anyway? I am trying to understand why you mentioned this if it really was completely isolated.
No, it doesn't require an aftermarket one, that's why the retail box comes with a stock cooler.
That said, most people prefer to use an aftermarket cooler because they generally have far better cooling performance.
It supports up to PCI Express x16 cards. The GTX 970 is a x16 3.0 card.
I would not spend the money on just the card. You should upgrade the rest of your system to a 1150 or 2011 socket system. Yours is a 775 system which is getting a bit old.
Huh?
How is your network configured. If your wired router is not connected to the network in anyway, you can disregard it. Unless you have it plugged into the wireless router, in which case, it is probably not isolated.
Try to not play when your battery is charging. The process of charging does heat up your laptop some on the inside (and you can also feel the heat on the power cable brick).