How many bots can I run at essence?

I was wondering how many I can bot with 1 account fletching, how many else can I run without my computer going crazy? I can't add ram or anything else to this computer.

 

2, 3 at most. my comp has equivalent specs except its a compaq, brand new and i was running 3 but barely.

 

Gah, compaqs suck. :/
2 bots +1 fletching, so 3 total?

 

Don't even bother with ess unless you're doing pure ess. Its shit money per hour

 

Please refrain from posting, as you look like a total dumb ass because that has nothing to do with my topic.