5670 300watt psu

Should be fine.

My system - E6400 @ 3.2 GHz, 4 gigs ram, 4 HDDs, 1 blu-ray writer, and one DVD writer and ATI 4870 = approx 325 W while running furmark to stress video.

The the 4670 and the 5670 are within 5 Watts of each other. So no change
http://www.pcgameshardware.com/aid,703129/Radeon-HD-567...

The 5670 is considerably lower power consumption than my 4870. My estimate is that your upper end Power consumption is approx 150 W (Max of 200 Watts) @ max load. (Note 2 reviews show about 240 to 250 W, BUT their test system was High end I7-920 & a I7-975 OCed)
http://www.legitreviews.com/article/1187/13/

Just built i3-530 and have a 5670 coming from newegg to day. Bought the corsair 400 W on sale for approx $50. Perfer a PSU load of 60 ->75 % of Max. You are between 50 % -> 67 %. 50%, great, 67% still good.

Cavet: Need to identify what brand/model of PSU you have as all 300W PSU's are NOT EQUAL. If good quality PSU, you are OK, if Not good quality - well what can I say except never ever trust your "baby" to a "Baby" killer. (Baby = computer)

Thanks for the reply man, its just a generic psu that came with the comp... here is the computer but obviously more ram, and I'm running a 4650 on it at the moment.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00...

Would a HD5750 work also? and is it much better than 5670.

Thanks again man

"Would a HD5750 work also? and is it much better than 5670."

Short answer Yes and yes.

Very little diff in Power consumption between the 2. @ Idle the 5750 draws about 3 watts more, and @ max load about 17 Wats more.
Performance: The 5750 is between 10 -> 30& better in games
The link I provided
http://www.pcgameshardware.com/aid,703129/Radeon-HD-567...
reflects the difference for several games.

As to the quality of the PSU - Unknown. Dell/HP/Compaq basically select which ever PSU manuf gives them the best deal and they change brands periodically. Very seldom are they JUNK, but On the other hand they are seldom listted in tier 1, or 2.

What you can do is down load a program, CPUID HWMonitor and install and run the program.

Look at the voltages, Do they appear correct (Primarilly the +5 and +12 V)
The program shows current, min and max. Note the voltages at Idle. Run a program that puts a high load on the computer, and note the change in the +5/+12 V.
+5 - must be greater than +4.75 Max less than 5.25
+12 V - Greater than 11.4 (specification, But I prefer a min no lower than 11.6), and less than 12.6 V.

HWMonitor
http://www.cpuid.com/hwmonitor.php

FurMark (Benchmark for your GPU)
http://downloads.guru3d.com/FurMark-v1.6.5-download-196...

Also Handy, Prime95 (Also loads +12 while checking your Processor and memory)
http://www.freewarefiles.com/Prime95_program_19638.html

After intsalling thise to pieces of software when loading up prime 95 I realised that all that went over my head so i screen shoted before and after pics of what happend.
Before prime 95:
http://rapidshare.com/files/370499735/Before_load.png.h...

After prime 95:
http://rapidshare.com/files/370500151/after_prime95.png...

So tell me do you still think it will work, if so I will buy this tomoro:
http://www.amazon.co.uk/ATI-Radeon-Dual-Link-DisplayPor...

And lastly are you sure that my E6400 won't bottlenet it so i dont see an improvement from my 4650?

Thank you lots for your help

sorry, could not look at your links. Not a member.

You could always over clock your E6400 if needed.

Don't use rapidshare for pictures
http://imgur.com/
http://tinypic.com/