8 pin slot on motherboard

[Stas823]

Hello

My new motherboard (asrock extreme3 990fx) has an 8 pin cpu connector but my psu only has a single 4 pin what difference will it make if I use single 4 pin instead of 8 on an fx8120 chip

 

[Stas823]

Ok so could the lack of pins make the CPU hotter

 

[Stas823]

The psu is g7 Power extreme 680w

 

[Stas823]

What PSU is it? If it hasn't got an 8-pin connector I'd guess it's either and older or el-cheap'o one.

Yeah I do have a cit 750w which has 2 4pins which I think I'm going to need to use once I get a cable with a 5 amp fuse since I already tried it with a 3 amp fuse which blew

 

[Stas823]

Damn. They can be had for £30, not good. A new PSU is strongly recommended here!

What is your FULL PC spec?

mobo: asrock extreme3 990fx
CPU: FX8120
GPU: GTX 560ti
Sound:x-fi xtremegamer fatality pro
Ram: 16gb 1600mhz ram

I think that's it

 

[Stas823]

Another crud psu. Stop wasting money on cheapo units.

Well for all we know CIT could be the next corsair for all we know

 

[Stas823]

With PSU's you get what you pay for. The G7 and generally all of CIT's PSUs are cheap, unbranded, generic turd.

You've got some expensive quality components there, I wouldn't risk it!

Spend £50-60 on a quality psu and it will probably outlast all of those components!

I just can't see why I should pay extra for the same product?

 

[Stas823]

Your not really, the better quality PSU'S have the circuitry to stop any surges going through your components plus they will be able to maintain their output without issues and maintain stable voltages.

There have been threads were people have ignored our advice and the PSU has gone bang or they get shutdowns and stability issues.

That's probably true but I haven't had any problems with the g7 for past 2 years and I've not seen a negative experience of cit psu's do far

 

[Stas823]

Adding to the concensus, I wouldn't use a cheap PSU on a mid to high end PC like yours.

Budget PSUs are just about exceptable on cheap hardware under £150 IMO. Just expect a reasonable chance of failer and possible hardware damage.

A simple guild. IMO a PSU should make up at least 1/9th of the hardware costs of your PC. (There will be some instances where this won't apply, like lots of high cost lower power items like SSDs)

So add the value of you hardware (no software), divide by 8. If the PSU you are looking as is lower then it's probably not good enough unless it's an amazing bargain. Spending more is fine btw.

If this G7 is 20 A + 20 A on +12 V combined then it's really a 480 W PSU for use in a new PC. And pushing a cheap PSU to it's limit isn't recommended.

Thats all well and good except that all the expensive brand psu's that are any good are over £100 which is ridiculous considering that they are just boxes converting mains power

 

[Stas823]

You're being given good advice by people with many years experience of PC building.

Is there any point you posting and asking for their advice only to ignore everything they've said to you?

You can get a good PSU that will run your PC for a fair bit less than £100.

If you'd like some recommendations then just ask.

Well actually I didn't want any psu advice I just asked 4 vs 8 pin and I thank those who answered

And sure go ahead tell me how many British pounds I have to give to one of the "good" brands in order to run an sli 560ti in the near future
Thanks

 

[Stas823]

I know that this will look strange but I am actually very happy with its stock performance so no overclocking will be done at all

 

[Stas823]

so is http://www.overclockers.co.uk/showproduct.php?prodid=CA-037-OP&groupid=701&catid=123&subcat= any good?

 

[Stas823]

Why is that no good?

 

[Stas823]

"This 750W PSU is designed for entry level systems that require a lot of power."

Well that sums it up really. Your PC is not entry level by any means.

Can I just ask a quick question... Do you have something against branded PSUs?

some of the branded PSU's are generally good and well priced and those are alright but some are hideously overpriced for a low wattage

 

[Stas823]

so what is exactly wrong with the one i linked except for it not being expensive enough?

 

[Stas823]

Sorry - Are you not taking anything in? ._.

well so far people said about high quality and 80+

 

[Stas823]

hehe!

i just wanted to understand why the one i linked is bad even though it is 80+

 

[Stas823]

Get a PSU suited to your sytem, PSU's have low efficiency at low power draws so no point going for 750+ watts unless you are definitely planing to go for a dual card setup and overclock.

The reason to go for 'branded' (thats just to say they've been around some time and have built up a reputation) is that there are specialist review sites that take apart PSU's and inspect the hardware and then test the charecteristics of the PSU under various load conditions. Ones being reccomended will have a good track record of providing good quality power supplies. If you're lucky you may also find a review article specifically testing your model which is reassuring.


btw 80+ was refering to efficiency not price. There are good 80+ psu's in the £50-60 range.

thanks

 

[Stas823]

No problems so far also corsair stuff is also made in china according to some quick google research

 

[Stas823]

Just because I said its made in china it doesn't mean it's bad.... iPhone's are made in china and they are good q