Few questions about computers

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Ricewagon wrote on 2011-06-21 02:25

So with everyone getting a new computer I thought maybe would be a good time to get a new one as well.
Looking at Ebay I've decided to go with this one http://www.ebay.com.au/itm/INTEL-Core-i7-2600K-GAMING-COMPUTER-PC-4G-DDR3-1TB-HDMI-/230618040442?pt=AU_comp_dekstop&hash=item35b1e8087a

Intel Core i7 2600k
Intel H67 Chipset Motherboard
4 Gig RAM
USB 3.0 ports
1 TB Hard drive
550w PSU
+ some other stuff for $695.

I can choose what parts can be upgraded and added... but I'm not quite sure about a few things such as the graphics card + PSU requirements.

These are the graphic card upgrade options that I'm looking at:
HD6770 - $149
GTX550 - $169
HD6790 - $179

Will 550w be enough? And is there much difference between those cards?

Also I'm planning to overclock this CPU when it gets old so how much could I overclock just with stock cooling? Should I invest in a cooler?
Osayidan wrote on 2011-06-21 02:55

drop the "K" from the procesor, it's unlocked for overclocking, so unless you plan to do that it's pointless and a waste of money.
Shirayuki wrote on 2011-06-21 03:01

The mobo isn't compatible with overclocking, so there's no point to the 2600k unless you can switch to a P67 or something mobo
Yoorah wrote on 2011-06-21 03:02

Let's see...

Erm.. first of all, is this a reputable seller? I skimmed it briefly and saw this:

[Image: http://img811.imageshack.us/img811/9350/errrrr.png]

You cannot overclock the CPU on a H67 chipset. You need P67 or Z68. <_< Either this is a scam, or they are noobs.

As for the cards, they are basically ranked according to performance. I would opt for a 6850 instead, if you can afford it. It's generally seen as a great balance between performance and price, but I didn't analyze the prices offered by that seller so take it as only a general guideline. The GTX550 isn't worth the price increase over the HD6770, that I can tell you with certainty.

550W is enough to power all 3 options, including the 6850 I recommended. But they don't seem to indicate the exact model of power supply you will get? If they give you a cheap PSU, 550W might give you trouble if you try to overclock parts later on.

With a good cooler, people are hitting almost 5GHz on the 2600K. It's arguably the best overclocking chip there is, not only because it overclocks so much, but also because it overclocks without disproportionate increase in power use. I wouldn't dare experiment like that, though. You really need to know what you're doing. You can get some overclocking on a stock cooler, but I it's best to get a better cooler. You'll get less noise, too.
Ricewagon wrote on 2011-06-21 03:06

Well from the same company I could basically get the same computer with the i7 2600 for only $16 cheaper... that's why I went with the unlocked one. And I do plan on overclocking it anyway.

edit:

Thank you for your reply Yoorah you saved me XD

I guess I'll choose the motherboard upgrade as well.

And yes this is a reputable seller, their more popular one is this one http://www.ebay.com.au/itm/INTEL-Core-i7-2600-3-4GHz-DESKTOP-COMPUTER-PC-1TB-8GB-/230603872676?pt=AU_comp_dekstop&hash=item35b10fd9a4