Overclock.net › Forums › Components › Power Supplies › PSU's for current system and legacy system
New Posts  All Forums:Forum Nav:

PSU's for current system and legacy system

post #1 of 3
Thread Starter 
Hi all,

I have a Corsair HX450w in my current system (see below), and I'm thinking about upgrading to a 650/750w PSU; that will give me enough power to run a single high-end GPU, like a GTX570/580.

However, I also have a legacy Pentium 4 system that I'm working on, and I need a new PSU for it. So, instead of buying a PSU for it, I was thinking of buying a PSU for my main system and then putting either the HX450w in it, or the Corsair CX400 that is in my Media Center (and put the HX450w in the Media Center).

My two questions are:

1. What PSU should I buy for my current system ? I presume a quality 650w is enough to handle a GTX570/580, right ?

The thing is, I was looking at the Corsair HX650w, and it is the only HX PSU in Corsair's line that is 80 Plus Bronze, while all others are 80 Plus Silver.

And given that the TX-650w v2 80Plus Bronze has recently been released, I'm wondering if the HX650 won't be soon replaced with an HX650w Silver to match the rest of the HX lineup and keep further differentiate from the TX-650w v2.

Then there is the HX750w, which I think is made by CWT; whereas the HX650 is made by Seasonic. I have Seasonic in very good consideration, how is the CWT reputation ?

Do these PSU's make any strange noises like coil whine and such ? My HX450w is pefect.

In the price range of the HX650w I can also buy a:

- NZXT HALE90 GOLD 650W - does anybody have experience with these PSU's and knows who makes them ? Is it NZXT themselves ?

- There is also the Seasonic X650 (also 80 Plus Gold), but I'm not finding it for sale where I live, so this one is just a theoretical consideration.


- The question then is, the Corsair HX650w 80 Plus Bronze seems too expensive when other similarly priced PSU's for sale are 80 Plus Gold, and given the TX-650w v2 80 Plus Bronze release, I'm wondering if the HX650 won't soon be replaced with a better model. Should I just go with the HX750w ?


2. For the Legacy Pentium 4:

I will have the following components:

- MSI 848p- NeoV motherboard
- 2 GB DDR 400
- Pentium 4 Northwood 3.4Ghz 89w TDP
- ATI Radeon X1950Pro 256MB GDDR3 (around 65w)
- WD Caviar Blue 320GB Sata
- Sound Blaster Audigy 4 (non Pro version)


What kind of power supply is enough for a system like this ? Is the HX450w enough ? Can the CX400 handle it ? If neither one of them is, then I would have to reconsider my buying strategy as it would involve buying two PSU's instead of one.

From this site, one of the memebers cites the AMD site (which no longer carries that page) for the X1950 Pro reqeuirements: 450-Watt power supply or greater, 30 Amps on 12 volt rail recommended (assumes fully loaded system).

But in those days nobody talked about 80 Plus efficient PSU's, and besides, my CX400w does have 30A on the 12v rail. But given I'm going to be using a 3.4Ghz 89w CPU, maybe I should go with the HX450w, right ?


Thanks in advance!
Edited by tpi2007 - 3/8/11 at 9:48am
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
post #2 of 3
Yes, a 650W unit will be more than enough for your system with one GTX 580.

The HX650 is a decent choice but it's kind of expensive. It's not the same 80 Plus rating because the HX750 and 850 are completely different units made by a completely different company like you've noted. The HX750 and 850 are excellent units, although you can now get units that are just as good for less money.

As far as I know there are no plans to introduce an updated version of the HX650.

CWT is a good company overall although they have some low-end units. The platform the HX750 and 850 are based on is still one of the best available.

Since 750W would be silly for a system with one GTX 580, I'm going to recommend a few other units in the 650W range:
- XFX 650W Pro Edition (exact same unit as the Corsair TX650V2, but typically found cheaper)
- Antec TP-650
- The NZXT Hale90 650W you mentioned is excellent
- XFX 650W XXX Edition
- And of course the SeaSonic X650 you also mentioned, that'd be the best 650W unit you can get, but if you can't find it then that's a moot point.

As for your P4 system -- you can put either your CX400 or your HX450 in it, it doesn't matter. The CX400 will work great.
post #3 of 3
Thread Starter 
Many, many thanks for the info! Rep+

I'll try to find the Seasonic X650 around, it's probably the best as you say. If not, HX750w or NZXT 650w.

The others you recommend are a bit hard to find where I live, I think I haven't even ever seen any for sale.
Edited by tpi2007 - 3/8/11 at 10:56am
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
 
Metro 2033 review
Metro 2033
CPUMotherboardGraphicsRAM
Core i7-3820 Asus Sabertooth X79 MSI GTX 750 Ti TF Gaming 16 GB Corsair DDR3 1866 Mhz Dominator 
Hard DriveOptical DriveCoolingOS
Samsung SSD 830 128GB + WD Caviar Black 1TB Sony Optiarc DVD-RW Corsair A70 + Noiseblocker M12-P Windows 7 Home Premium 64-bit 
MonitorKeyboardPowerCase
BenQ RL2455HM Cooler Master Octane Corsair AX750 Professional Modular 80 Plus Gold Cooler Master HAF 912 Plus 
Mouse
Cooler Master Octane 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › PSU's for current system and legacy system