Will the Antec PSU I ordered work with the vnf4 ultra?

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Silversierra

Senior member
Jan 25, 2005
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Hi, I ordered an Antec case (1650b)that comes with an Antec 350 watt psu (sl350?). I figured this would be fine for me because I just want to run a 939 a64 3000+, 6600gt, and 1hd on a Chaintech vnf4 Ultra. An online calculator said I need about 300w for my rig. The problem is that I just found out that the psu I am getting only has 16amps on the +12v rail. I read somewhere that the minimum for a64 is 18amp. Is this true? Or do I only need more if I get a better gpu or cpu? To further complicate things I find that the psu only has 20 pins on the atx connector and the vnf4 has 24. I've heard that I can plug the 20 into the 24 and it will still work, but which way do I put it in? I'm guessing towards the top of the mobo. I've heard horror stories about using adapters too. So will this psu work for now? Or will it fail to post or cause crashes? A reviewer on Newegg said when he got this case with this psu, the actual psu he got was a 22a on +12v. Is this possible? Could Antec have upped the amperage recently (fingers crossed)? Any help greatly appeciated! Thanks!
 
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FastEddie

Golden Member
Oct 9, 1999
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The newer version of the Antec 350W will give you enough for that system--barely. If you plan to do some overclocking, you may hit the wall though.
 
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Silversierra

Senior member
Jan 25, 2005
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Ok does anyone know how to put the 20 pin connector into the 24pin socket of a vnf4 ultra? Does anyone know if Antec really did make a new 350w psu with a 22a 12v rail?
 
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Jim Bancroft

Senior member
Nov 9, 2004
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The 20 pin--->24 pin connection won't be hard. The motherboard manual ought to have a diagram, plus I _believe_ there's only one way to do it, so you can't accidentally plug it in incorrectly. If memory serves you insert on the left side, leaving the two rightmost columns empty.

As to the power requirement, I'm in almost the same boat as you; same CPU and a 6600GT. I bought the MSI Neo4 and their manual reccomends 350w + 18 amp PS. I've got 400w/17 amps so I'll see how it goes. If I had to guess I'd say you should be ok with your Antec, provided you're not overclocking. I won't be.
 
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Silversierra

Senior member
Jan 25, 2005
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The mobo manual I downloaded doesn't have a connection diagram showing how to connect the connectors. Hopefully this psu will work, I won't be overclocking, at least for a while anyway. If I think if I need more power in the future, I 'll get a 24pin psu about 450w+ and at least 26a on 12v and then I can overclock.
 
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Buz2b

Diamond Member
Jun 2, 2001
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You can look here for some info according to Antec. Basically:
Then what should I be careful of when using a v1.3 power supply?
First, be careful that you plug it in correctly. The connectors are keyed so that they fit only a certain way, but it?s not impossible to force them together the wrong way. Exercise all due caution.
Second, pay some attention to the load on the PCI Express bus. The vast majority of all system configurations will be fine with a v1.3 power supply. However, if you plan to use a top of the line PCI Express graphics card that draws the full power of the bus, or one that requires the special extra connector, you will be better off going with an ATX12V v2.0 power supply.
Are there other issues concerning ATX12V v2.0 and PCI Express?
The main thing to watch out for is power supplies improperly claiming to be ATX12V v2.0 compliant which in fact aren?t. Some companies have simply put a 24-pin connector on their old model power supplies so they can say they are ATX12V v2.0. If those power supplies do not meet the other requirements of the specification, then they aren?t v2.0.
Now, since most system configurations will work with a v1.3 power supply, you may be fine with such a solution?but if you plan to load up the PCI Express bus, you might encounter stability problems. The real question is: do you really want to deal with a power supply company that tries to pull the wool over your eyes?
Click to expand...
I'd upgrade the PS and sell the other to offset some of the cost because you are really kind of borderline here. Not worth potential problems later, if not now.
 
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GadgetBuilder

Member
Dec 28, 2004
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There are pictures of a VNF4 and its power connections here

I bought a VNF4 too (should arrive tomorrow) and a Sonata case. The 380S in this case is now rated 24A on the 12v line so Antec seems to have upgraded most all their supplies to provide more on the 12v line, probably to accommodate recent AMD boards.
 
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Silversierra

Senior member
Jan 25, 2005
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Thanks for the info! Anybody know a good psu with at least 26a on 12v, about 400w+, with 24pin connector that's cheap?
 
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Silversierra

Senior member
Jan 25, 2005
664
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Is the Tagan 480 loud? That is a good price for a good psu.
Also, their website says it's only atx1.3, not 2.0 but it has a 24pin connector.
Will it still work? Why isn't it a 2.0 if it has 24pin?
 
Mem

Mem

Lifer
Apr 23, 2000
21,476
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With the new ATX 2.0 specification comes the introduction of two +12V rails. The first +12V1 rail provides the noise-sensitive processor and motherboard components with their own clean power, while the second +12V2 rail provides power to all the drives and fans(except those connected to motherboard header pins) in a persons computer
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It`ll work fine since it`s a high quality PSU that has ATX 24 pin power connector(comes with a 24 pin to 20 pin adaptor for older boards)so basically it does not have dual 12v rails(no big deal).


Old review.


Forgot to say it`s quiet.
 
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mdahc

Senior member
Oct 9, 2004
571
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So what about socket 754 AGP boards (i.e. the MSI K8N Neo-FSR). I'm trying to spec out an inexpensive Athlon64 system for my fiancee's brother, and I was going to get the Antec 1650B case for him as well. I'm just going to put a GeforceFX 5200 and a single HDD (he doesn't do much 3D gaming), but still, is the included Solution Series PSU enough for a socket 754 Athlon64?
 
Mem

Mem

Lifer
Apr 23, 2000
21,476
13
81
So what about socket 754 AGP boards (i.e. the MSI K8N Neo-FSR). I'm trying to spec out an inexpensive Athlon64 system for my fiancee's brother, and I was going to get the Antec 1650B case for him as well. I'm just going to put a GeforceFX 5200 and a single HDD (he doesn't do much 3D gaming), but still, is the included Solution Series PSU enough for a socket 754 Athlon64?
Click to expand...


That comes with the 350w SmartPower model I believe,I would rather use the 400w model since it has a better +12v rail of 18A compared to 16A of the 350w SmartPower.I`m not saying it won`t work with the 350w,but the 400w model would be a safer bet


SmartPower range.
 
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Silversierra

Senior member
Jan 25, 2005
664
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Dual rails aren't good for nforce4 are they? I read that if you have a 16a 12v1 and a 16a 12v2 you still have 16a (not 32a). And 16a is hardly enough. So a strong single 12v rail is desired.
 
Mem

Mem

Lifer
Apr 23, 2000
21,476
13
81
Dual rails aren't good for nforce4 are they? I read that if you have a 16a 12v1 and a 16a 12v2 you still have 16a (not 32a). And 16a is hardly enough. So a strong single 12v rail is desired
Click to expand...

I would rather have a high strong single +12v rail then two lower 12v rails,anyway the Tagan has a nice healthy 28A on the +12v,and I believe that is not even peak.

This new ATX 2.0 spec standard is really Intel`s fault.
 
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Icepick

Diamond Member
Nov 1, 2004
3,663
4
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Originally posted by: mdahc
So what about socket 754 AGP boards (i.e. the MSI K8N Neo-FSR). I'm trying to spec out an inexpensive Athlon64 system for my fiancee's brother, and I was going to get the Antec 1650B case for him as well. I'm just going to put a GeforceFX 5200 and a single HDD (he doesn't do much 3D gaming), but still, is the included Solution Series PSU enough for a socket 754 Athlon64?
Click to expand...

The good news is that Antec recently updated all their power supplies to include more amps on the 12V rail. I bought the TrueBlue 480Watt model in October. It was listed as being 22A on 12V on the NewEgg website. When I received the power supply it was actually 28A. This is true of the 380Watt model that comes with the Sonata. They updated it from 18A to 24A. Any Antec power supply you get today will most likely be updated with enough current on the 12V rail to run the system you described above.
 
Mem

Mem

Lifer
Apr 23, 2000
21,476
13
81
Does anyone know if Antec really did make a new 350w psu with a 22a 12v rail?
Click to expand...

Guys can we be clear on the models they have upgraded?

Antec has like SmartPower range,TruePower range,Phantom range and more etc.... so do we know exactly what range they have upgraded?
 
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