New Build help please

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Hi after some thinking about getting a new pc ive decided to put together one for the first time.

here is a image of the parts im thinking of getting:
screenshot20101125at112.png


Basicaly i just wanted to know if the parts i got are all compatible together and fit in the case. I also want to OC my graphics card and get another one running in sli. would i need a more powerfull psu or am i fine?

Cheers, Malthus
 
Those parts should all be compatible and fit in that CM-690. I think sli should be fine as long as there are enough amps on the 12v rail for 2 470's, not sure how much headroom there would be though as those 470's need quite a bit of power
 
Yeah I think you'd be pushing that pretty hard with 2x 470s overclocked and presumably the i7 also overlclocked. 2x 6870 would be no problem and perform slightly better. In any case that Modxstream only has 2 PCIe 6/8-pin connectors. You can use molex adaptors no problem, but it can look a bit untidy if you're going for nice cable management.
 
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See my edit above - I added a bit more. If you wanted to stick with 470s you'd want a PSU of around 800-850 I would have thought.

That's a great spec, but if budget is a little tight, personally I'd go i5 760. Just as good performance in games as i7, and you can add a nice SSD to the build and still save some cash :)
 
is the i5 easy to overclock?

Yeah - you'll get 4GHz just about as easily as you would with an i7.

Differences between i5 7xx and i7 are as follows. i7 has...

Tripple channel ram - higher theoretical memory bandwidth. In practice dual channel isn't a bottleneck and tripple channel shows minimal to no gain, especially in gaming.

x16/x16 x-fire/sli - wheras i5 is limited to x8/x8. Again in practice x8 isn't a bottle neck, so the advantage of x16/x16 is 0 to a few % in games - hardly noticable.

Hyperthreading - this is the feature worth having an i7 for. Gives up to 25% performance gain over i5 clock-for-clock in heavily optimised multithreaded tasks - like rendering and encoding. In lightly theaded tasks, like gaming, there is pretty much no benefit.

So it depends on your uses if i7 is really gonna show any gains. For gaming it doesn't really show any gains at all, let alone gains worth the price increase. So when people are on a finite budget, and gaming is the priority (not sure for you as you haven't said), i5 760 is normally the recommendation to maximise the money left for GPU which is king for gaming. Up to you and there's nothing at all wrong with your i7 spec above barring the PSU if you want the 470s.
 
Thanks for the advice this is my new revised build changed the psu, graphic cards, processor, mobo and dual channel memory. Whats the difference between the p55 and h55 chip-set cos i couldn't see it on the processor.

radeon.png


Just notices the price pretty leet tbh :P
 
The difference in my opinion is overclockability. The h55 can run very hot when compared to some p55 boards. I use the ud4 board and I think its great. You may also wish to consider the MSI P55 GD65 board which is cheaper.

http://www.overclockers.co.uk/showproduct.php?prodid=MB-124-MS&groupid=701&catid=5&subcat=1495

That board you have specced is great as it suits me to run SLI. But with you running Crossfire I think the cheaper GD65 would be the better bet.

Also are you just gaming because if so 8GB ram is unnecessary. 4GB is ample.

http://www.overclockers.co.uk/showproduct.php?prodid=MY-203-CS

I also believe that 2 6870s have very low power requirement and a 650 watt psu is all that is required. The antec true power 650 watt may be the best way to go there.

http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN

hope this helps.

by the way nice case ;)

Will you need the dvi cable? I don't think you will as the cards will come with one (or the mother board will)
 
Thanks for the advice this is my new revised build changed the psu, graphic cards, processor, mobo and dual channel memory. Whats the difference between the p55 and h55 chip-set cos i couldn't see it on the processor.

[pic not repeated]

Just notices the price pretty leet tbh :P

LOL just put a pretty identical spec together myself! Just the one GPU and an SSD though as it was comparing to your i7 spec.

I would use the Antec PSU as skylineboy suggested as it comes ready for x-fire/sli with 4 6/8-pin connectors and 650W is fine for 2x 6870. Also, for only £1 more get the UD6 as it is an upgrade from the UD4 (should cost a lot more than it really!). Or consider the GD65 if you want to save a bit, but the UD4/UD6 are pretty high end P55 boards and will be great for overclocking and offer a lot of high end features (especially the UD6). The SATA3 in particular will get the most out of an SSD you might add later.

Here was my spec anyway...

MSI ATI Radeon HD 6870 1024MB GDDR5 PCI-Express Graphics Card £194.99
IIyama Prolite E2472HD 24" Widescreen LED Monitor - Black £169.99
Gigabyte GA-P55A-UD6 Intel P55 (Socket 1156) DDR3 Motherboard £151.99
Intel Core i5 760 2.80GHz (Lynnfield) (Socket LGA1156) - Retail £135.11
Patriot Inferno 60GB 2.5" SATA-II Solid State Hard Drive (PI60GS25SSDR) £88.11
Microsoft Windows 7 Home Premium 64-Bit - OEM (GFC-00599) £82.24
Coolermaster CM-690 II Advanced Dominator Case - Black £76.99
Antec TruePower New Modular 650W Power Supply £69.99
Corsair XMS3 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit (CMX4GX3M2A1600C9) £65.99
Razer Arctosa Keyboard - Silver £36.99
Akasa AK-CCX-4002HP Venom CPU Cooler (Socket LGA775/LGA1156/LGA1366/AM2/AM3) £36.99
Samsung SpinPoint F3 500GB SATA-II 16MB Cache - OEM (HD502HJ) £32.98
Samsung SH-S223L/BEBE 22x DVD±RW SATA Lightscribe ReWriter (Black) - OEM £13.99
TP-Link 150Mbps Wireless Lite N PCI Express Adapter (TL-WN781N) £11.50
OcUK Value 2m DVI Male - Male Monitor Cable (DV-106) £7.04
Sub Total : £999.91
Shipping cost assumes delivery to UK Mainland with:
DPD Next Day Parcel
(This can be changed during checkout) Shipping : £20.10
VAT is being charged at 17.50% VAT : £178.50
Total : £1,198.51


EDIT: Looks like you are sorted anyway as above. The GD65 seems to be a great board - supported a 4.2GHz overclock in a review i just read. You get a free USB3 card at the mo, and can add SATA3 later too if you add an SSD although that will have all your PCIe slots full, but never mind. Or you can consider the UD6 with USB3 and SATA3 already built in, but it may not really be worth that extra £50. Good luck with the build.
 
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cheers for the help guys going to order it in a sec :) and will post some pics once ive done the build. Think im going to stick with MSI P55-GD65 Intel P55 board seems decent in the reviews.
 
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