advice about upgrade (mobo/cpu/ram)

[Commissar Karlovic]

Hello,

I'm considering to upgrade my rig in December. The upgrades will be:

• 
  Intel 5820k or 5930k
  Asus x99-A
  no brand ram ddr4

Questions:
1. Do I need new PSU?
Details: psu: Corsair CS750M Gold, GPU: Gigabyte GTX760 windforce, HDD 1TB, SSD boot.

2. If I dont need a new PSU, how much can I OC the cpu?
Details: As I know Voltage and Watt are propotionate (V=W/q, while q is constant).

3. Does my case have enough space to support an upgrade like this?
Details: Coolermaster mid tower, it supports ATX but I worry about the heat, because it seems pretty small. (no extra fans installed)

4. If I need to change PSU, what's better? Sell the current one (it still has 2.5yrs warranty) and buy a new one or buy a second one? (I have no idea where to put it, but I suppose I'll find a way)

5. That's the most stupid question of all. I've heard that intel does not give a startup fan with 2011-3 cpus to start until get the money to buy a new one. Is this true?

Feel free to answer to whichever question you want.

PS: The links are from the official sites of coolermaster, asus and gigabyte

 

[snowctrl]

Your PSU is not recommended (by Corsair) for over clocking. have at look at their website.

How much you will be able to OC will depend on who good a chip example you have the fortune/misfortune to get, but you will do extremely well to get above 4.4GHz, that't the typical max for a good example. Your OC will be limited also by the quality of RAM, cooling etc you have (don't even try OCing with the stock cooler...) - the point is to buy good components sufficient that it is th the chip that holds back your OC, not some other component.

By the way, if you're considering this upgrade for gaming, you could probably actually go for something much cheaper and see almost no loss in game quality....

 

[Sakkura]

1. No, 750W is plenty for that system, even overclocked.

2. As far as the silicon will let you. It's a lottery. As for power consumption, it's approximately proportional to the square of the voltage, and proportional to the clock frequency as well. For pure CMOS the switching power consumption is C·V^2·f, but there is some non-CMOS logic on the chip, and there's also some leakage current to consider.

3. Case is fine, but you can always add another case fan or two if necessary.

4. N/A

5. You need a good cooler for a 2011-3 CPU anyway, a dinky little boxed cooler wouldn't be much use.

 

[Commissar Karlovic]

Thank you for your answers

@Sakkura So, I can assume there's a boxed cooler. (I'm not going to oc with that cooler ofc, but I dont afford to buy cooler together with the rest)

@snowctrl So I have to change PSU in order to OC.

Do you have any rough suggestion for a good PSU (money for value)? Electricity is not a problem + gtx 760 sli prediction. Current budget =<200euros (220 dollars).

 

[snowctrl]

Thank you for your answers

@Sakkura So, I can assume there's a boxed cooler. (I'm not going to oc with that cooler ofc, but I dont afford to buy cooler together with the rest)

@snowctrl So I have to change PSU in order to OC.

Do you have any rough suggestion for a good PSU (money for value)? Electricity is not a problem + gtx 760 sli prediction. Current budget =<200euros (220 dollars).

You don't HAVE to change the PSU for OCing, but there's more to a PSU than just wattage. The point is, when you come to over clock, you don't want to be fighting instability based on something other then the CPU that you are trying to voerclock i.e. you don't want some other component not quite measuring up and becoming the limiting factor, especially not something like a PSU not quite coping with the occasional peak voltage etc. Corsair recommends some of it's more expensive lines if you are gonna over clock (AX, TX series etc). That's not to say your CX750M won't do it, but if you find OCing hard....

 

[Sakkura]

@Sakkura So, I can assume there's a boxed cooler. (I'm not going to oc with that cooler ofc, but I dont afford to buy cooler together with the rest)

No - there is no boxed cooler, you need to buy one separately. My point was that the typical Intel boxed coolers would be inadequate anyway, that's why they don't include one with these CPUs (along with the fact that people buying high-end CPUs will usually not be bothered by the extra cost).