PSU for a dual 4890 rig w/ Q6600 4GB RAM

snedie · 08-29-2009, 05:24 AM

Well I suppose the title has summed it up pretty well here. I am searching for a new PSU, corsair preferred, that will provide ample juice and connectors for my rig. But I am having trouble finding a suitable option.

I am looking for around 600 Watts of power, whilst saving on the pennies. I am currently running a 640Watt PSU but it only provides for two 4Pin PCi-E connectors which are both been used for the one 4890. Now I don't know if it is safe to run anything more from the molex connectors or not so I am just going down the safe route and getting a new PSU that will provide two 8pin PCI-e connections.

After browsing Corsairs range (http://www.corsair.com/products/tx/default.aspx) the first one to provide these connections was the 650Watt but when I looked at the specs of this PSU on other sites it only says it has one connection.

So I need some help here on this one. Can somebody please reccomend a decent PSU for under or near to £100.

Specs:

MB: Gigabyte GA-EP45-DS3R
CPU: Q6600 G0 @ 3.2Ghz W/ 1.324v Vcore
GPU: Dual 4890's @ 1100Mhz Mem Clock @ 945Mhz GPU Clock
RAM: 4GB DDR2 @ 443.8Mhz Bus

PSU Calculator Specs

Code:

*System Type:*		  1 physical CPU	
*Motherboard:*		  High End - Desktop	
*CPU:*		          Intel Core 2 Quad Q6600 G0 2400 MHz Kentsfield	
*Overclocked:*		  3210 MHz, 1.30 V	
*CPU Utilization (TDP):*		85% TDP	
			
*RAM:*		         4 Sticks DDR SDRAM	
*Video Card:*		 ATI Radeon HD 4890	
*Video Type:*		 Crossfire	
			
*Regular SATA:*		 4 HDDs	
			
*DVD-RW/DVD+RW Drive:   3 Drives	
			
*Sound Blaster:*        Yes	
			
*Fans*			
Regular: 		7 Fans 120mm;  	
			
*Keyboard and mouse:*	Yes

[EDIT]

Okay I guess I just wasn't looking hard enough. The 650 Does indeed have dual 8pin PCI-e connectors, and a decent price too (http://www.microdirect.co.uk/Home/Pr...V-v2-2--5-year)

Just one more thing, will the PSU have enough juice for my rig?

Tumbleweed36 · 08-29-2009, 06:07 AM

Quote:

Dual 4890's

I think you are looking to buy a power supply that is way too small. If you were to use a 4890, the 650 will work, but with dual cards, you need an 850 Corsair IMHO. I think you will find a 650 will simply not cut it with two of these cards. And, Corsair is about as good as you can get, so you are on the right track.

08-29-2009, 05:24 AM	#1 (permalink)
snedie Registered User Join Date: Feb 2008 Location: UK Posts: 137 OS: Windows 7 Ultimate x64	PSU for a dual 4890 rig w/ Q6600 4GB RAM Well I suppose the title has summed it up pretty well here. I am searching for a new PSU, corsair preferred, that will provide ample juice and connectors for my rig. But I am having trouble finding a suitable option. I am looking for around 600 Watts of power, whilst saving on the pennies. I am currently running a 640Watt PSU but it only provides for two 4Pin PCi-E connectors which are both been used for the one 4890. Now I don't know if it is safe to run anything more from the molex connectors or not so I am just going down the safe route and getting a new PSU that will provide two 8pin PCI-e connections. After browsing Corsairs range (http://www.corsair.com/products/tx/default.aspx) the first one to provide these connections was the 650Watt but when I looked at the specs of this PSU on other sites it only says it has one connection. So I need some help here on this one. Can somebody please reccomend a decent PSU for under or near to £100. Specs: MB: Gigabyte GA-EP45-DS3R CPU: Q6600 G0 @ 3.2Ghz W/ 1.324v Vcore GPU: Dual 4890's @ 1100Mhz Mem Clock @ 945Mhz GPU Clock RAM: 4GB DDR2 @ 443.8Mhz Bus PSU Calculator Specs Code: System Type: 1 physical CPU Motherboard: High End - Desktop CPU: Intel Core 2 Quad Q6600 G0 2400 MHz Kentsfield Overclocked: 3210 MHz, 1.30 V CPU Utilization (TDP): 85% TDP RAM: 4 Sticks DDR SDRAM Video Card: ATI Radeon HD 4890 Video Type: Crossfire Regular SATA: 4 HDDs DVD-RW/DVD+RW Drive: 3 Drives Sound Blaster:* Yes Fans Regular: 7 Fans 120mm; Keyboard and mouse: Yes [EDIT] Okay I guess I just wasn't looking hard enough. The 650 Does indeed have dual 8pin PCI-e connectors, and a decent price too (http://www.microdirect.co.uk/Home/Pr...V-v2-2--5-year) Just one more thing, will the PSU have enough juice for my rig? Last edited by snedie; 08-29-2009 at 05:39 AM.