Using 2 PSU has CLoD kicking it in high gear!

[Vengeanze]

Originally Posted by Dutch_851

I'll definately need to change the psu.

Any advice?

Thanks!

Anyone rated 80 PLUS.
Nice brands are OCZ, Corsair and Cooler Master.

If you got a tight hot case then buy a modular (i.e. you can remove unnecessary cables) but they are more expensive.

[ATAG_Dutch]

Originally Posted by Vengeanze

Anyone rated 80 PLUS.
Nice brands are OCZ, Corsair and Cooler Master.

If you got a tight hot case then buy a modular (i.e. you can remove unnecessary cables) but they are more expensive.

Thanks mate. It's a Dell xps 8000, so quite a small case. Not worried about price really.

Well, not much.

[Vengeanze]

Originally Posted by Dutch_851

Thanks mate. It's a Dell xps 8000, so quite a small case. Not worried about price really.

Well, not much.

Dell XPS 8000; that's ATX format but I know Dell make tight stuff so to be 100% sure check the dimensions of the old PSU before getting a new one.

Corsair just released a nice PSU - AX650 for 169 USD. It's modular, 80+ Gold, apparently silent and in ATX format.

[ATAG_Dutch]

Originally Posted by Vengeanze

Dell XPS 8000; that's ATX format but I know Dell make tight stuff so to be 100% sure check the dimensions of the old PSU before getting a new one.

Corsair just released a nice PSU - AX650 for 169 USD. It's modular, 80+ Gold, apparently silent and in ATX format.

Thanks Venge, you're a star!

[CBA_Bludawg]

Originally Posted by Dutch_851

Now that is very interesting.

My psu is a Dell supplied 350w unit, which may not even power my card adequately.

Performance with Cliffs of Dover is ok, but missions over London are a no-no.

If a new psu would provide a performance gain, I'd be happy to shell out on this first, rather than a card upgrade+psu, because of course if I upgrade my card, I'll definately need to change the psu.

Any advice?

Thanks!

dude you need to read this

http://www.guru3d.com/article/radeon...review-test/11

5770 requires 500watt at the min. on a full load your 350 isnt enough for that card at all.

[ATAG_Dutch]

Originally Posted by CBA_Bludawg

dude you need to read this

http://www.guru3d.com/article/radeon...review-test/11

5770 requires 500watt at the min. on a full load your 350 isnt enough for that card at all.

Thanks Bludawg, I'm convinced.

Will be down to the shops in around 30 mins!

Cheers!

[InsaneDruid]

Geeze, so much BS in one single thread.

First, an underrated PSU can NOT fry your system. Just would lead to instabilities due to insufficent power. But no damage AT ALL.

Second, combining 2 ore more PSU can give some very bad differences in electrical potentials if you don't make a proper low ohm connection of their ground potentials.

Third, the recommended specs for video cards are mostly overdone, so that even the worst low cost psu with the given (paper) rating could handle them.

Forth, the recommended PSU brands (OCZ, Corsair and Cooler Master) don't even build psus at all, just rebranding them.

Corsair for example are just OEM seasonic (which itself is top notch, but the oem versions may vary) or channel well.

http://whirlpool.net.au/wiki/psu_manufacturers


Fifth, even the idea that a GPU can do ANYTHING to performance is.. borderline to say it the least offending way.

Originally Posted by InsaneDruid

Geeze, so much BS in one single thread.

First, an underrated PSU can NOT fry your system. Just would lead to instabilities due to insufficent power. But no damage AT ALL.

How about if a PSU is being asked for more power than that for which it's rated (and capable), blows a bit that's channeling that excessive power and resistance plummets and allows a massive spike through to the mobo/card/whatever?

[Vengeanze]

Originally Posted by InsaneDruid

Geeze, so much BS in one single thread.

First, an underrated PSU can NOT fry your system. Just would lead to instabilities due to insufficent power. But no damage AT ALL.

Not even to the PSU itself?

Originally Posted by InsaneDruid

Third, the recommended specs for video cards are mostly overdone, so that even the worst low cost psu with the given (paper) rating could handle them.

Eeeeehh, I'd like to see some docs on that cause you've got a hole world of OC:ers saying otherwise. Might be a hype but just to be sure, give us a link plz.

Originally Posted by InsaneDruid

Forth, the recommended PSU brands (OCZ, Corsair and Cooler Master) don't even build psus at all, just rebranding them.

Common knowledge but I could not see any reason to post that info. But thank you for nothing.

Instead of being an a**hole give the OP some examples of good PSU.

[Korn]

Originally Posted by InsaneDruid

Geeze, so much BS in one single thread.

First, an underrated PSU can NOT fry your system. Just would lead to instabilities due to insufficent power. But no damage AT ALL.

Second, combining 2 ore more PSU can give some very bad differences in electrical potentials if you don't make a proper low ohm connection of their ground potentials.

Third, the recommended specs for video cards are mostly overdone, so that even the worst low cost psu with the given (paper) rating could handle them.

Forth, the recommended PSU brands (OCZ, Corsair and Cooler Master) don't even build psus at all, just rebranding them.

Corsair for example are just OEM seasonic (which itself is top notch, but the oem versions may vary) or channel well.

http://whirlpool.net.au/wiki/psu_manufacturers


Fifth, even the idea that a PSU can do ANYTHING to performance is.. borderline to say it the least offending way.

Finally someone who talks sense, i was amazed at what silly things some people were saying here, and actually others believing them.

Look here, this is an excellent article from a reputed hw site: Debunking Power Supply Myths. For those lacking time or patience, just read this:
++++++++++++++++++++++
System 3:
Intel Core 2 Extreme QX6850, 4GB Memory, NVIDIA 780i Chipset, NVIDIA GeForce 8800 Ultra SLI, an optical drive, and four hard drives. For our third example, we chose some of the most demanding products for testing. In particular, the 780i Chipset from NVIDIA has the highest power consumption of all chipsets we've tested so far, drawing a constant 69W. (There is of course some variation in power consumption even from chips of the same family, and the features and extra chips on each motherboard differ from manufacturer to manufacturer. Our particular 780i is an EVGA motherboard.) The idle power consumption for this setup is around 310W, and once we place of full load on everything power consumption increases to 544W.
++++++++++++++++++++++

Grated it's an older article and therefor older components, however please note that this 3rd system is still a monster in power consumption terms and still comes shy of the 550W mark (that doesn't mean that a 550W source is recommended of course).

If anything nowadays the tedency in PSUs usage is gross oversizing, which leads to efficiency loss. And money loss. But hey, go ahead, use 10 PSUs if that's how smart you are, i'm sure you're going to notice vast improvement.