Identifying rails on non modular PSU

[Mussels]

I'm thinking TX750, high quality single rail

i have one, quite good but the fan ramps up too high for me after ~350W

This. I kinda agree with OklahomaWolf in his Corsair AX1200 review with that 100A on a single rail thing though.

yeah... i like the multi rail idea, i just dont like how LOW the rails are these days.

4x18? dislike.

2x35? no problem.

 

[streetfighter 2]

4x18? dislike.

A lot of the time 4x18 isn't even possible. If you check you'll see a lot of those PSUs which advertise "4x18" can only pull 60A cumulative on the 4 rails. The "4x18" really just means that each rail can be run up to 18A, not that it can actually provide 4 rails at 18A simultaneously.

Damn PSU asshatery. :shadedshu

 

[Dave63]

Do not know if this will help but has good info check out the web site at bottom of pic I used it for a ref. to know the power placement.

 

[Mussels]

A lot of the time 4x18 isn't even possible. If you check you'll see a lot of those PSUs which advertise "4x18" can only pull 60A cumulative on the 4 rails. The "4x18" really just means that each rail can be run up to 18A, not that it can actually provide 4 rails at 18A simultaneously.

Damn PSU asshatery. :shadedshu

hence my dislike.



anyway, any other tips on how to find out what runs off what rail in PSU's?

or has it just boiled down to PSU asshattery making it hard a lot of the time?

 

[PaulieG]

i have one, quite good but the fan ramps up too high for me after ~350W



yeah... i like the multi rail idea, i just dont like how LOW the rails are these days.

4x18? dislike.

2x35? no problem.

Yeah, I don't mind dual rails. I think anything beyond that is general asshatery.

 

[Mussels]

Yeah, I don't mind dual rails. I think anything beyond that is general asshatery.

my current is a dual with a nice 2x40 arrangement, and the modular plugs color coded to tell me whats on what rail. i wish more non modulars had such a simple color coded setup, or at least a damn diagram in the manual.

 

[newtekie1]

i have one, quite good but the fan ramps up too high for me after ~350W



yeah... i like the multi rail idea, i just dont like how LOW the rails are these days.

4x18? dislike.

2x35? no problem.

18a is just where the OCP is supposed to trip, though usually it is a fair bit higher than that, in the 24a range.

Though it hardly matters, I've never had a PSU trip from overloading a rail(unless I purposely overloaded it to see what would happen). Any PSU worth spending money on will have the rails configured so it is pretty much impossible to trip the OCP unless you really try. For example, the times I've done it, I had to run every last thing off a single line of molex connectors. The hard drives, optical drives, video card, and even CPU. The only thing not run from the line of molex connectors was the 24-pin. And even with that, if I moved the CPU power connector to the native one from the PSU, it didn't trip.

hence my dislike.



anyway, any other tips on how to find out what runs off what rail in PSU's?

or has it just boiled down to PSU asshattery making it hard a lot of the time?

More like PSU asshattery making it pointless.

 

[Mussels]

oh, i've had PSU's trip the OCP before. several 4x18's tripped on my old wolfdale + 4870 crossfire setup, its what pissed me off in general towards multi rail PSU's, or at least those that dont label their rails properly.


the system ran fine at stock or without stress testing, but OC + furmark or linpack (or both combined XD) resulted in instant shutdowns. these are from 'decent' brands like antec and OCZ as well (and yes they are not top tier, thats the point.)

 

[streetfighter 2]

anyway, any other tips on how to find out what runs off what rail in PSU's?

or has it just boiled down to PSU asshattery making it hard a lot of the time?

Though the second part is true. . .

Here are my trade secrets. Promise me you won't tell anyone.

Most of the time I don't have a lot of choice about how to hook stuff up so the division of the rails is a non-issue. Nevertheless when I do encounter a scenario where I have a choice with loading the PSU rails, I go to the company's support forum and ask. Any decent PSU retailer is going to make that information available. Quality reviews of the PSU will also provide that info.

 

[crmaris]

In the older ATX spec (2.2) there was a 240VA (W) limit per virtual rail (20Amps for each +12V rail). However many manufacturers ignored this limit by putting the OCP trigger point much higher, in order to avoid problems with peak currents (or power hungry VGAs). The good thing is that this limit in ATX 2.31 spec was omitted.

Also none single rail PSU can be ATX 2.31 compliant since the later spec demands at least two +12V rails.

 

[specks]

Maybe I'll get this instead:
http://www.thermaltakeusa.com/Product.aspx?C=1266&ID=1939

What do you think?

 

[newtekie1]

Maybe I'll get this instead:
http://www.thermaltakeusa.com/Product.aspx?C=1266&ID=1939

What do you think?

I've got a TR2-850w powering my SLI GTX460 rig. The first one died 30 minutes into use, the replacement has been working fine for about 3 months now.

 

[streetfighter 2]

The TR2-700P (TR2-700AH2NFB) is made by FSP.

They've had questionable quality over the years (IMO).

FYI I'm currently using an OCZ850W which is based on the notoriously troublesome FSP Epsilon platform.

 

[Eric_On_Web]

For cheap and effective I would say the same as me I use for many stuff around. Cooler Master eXtreme power 500w. Before they were crap but they changed the manufacturer to Seventeam and now its FTW!!!
I use it as spare psu, car battery charger, 12 volts supplier when im in my shed outside to use in a fan, and the fog light inside

Go with it and its a nice warranty, pretty solid, black and enough wires for you

 

[Easy Rhino]

How do you identify the different 12v rails on a non modular PSU?

the manual.

 

[Eric_On_Web]

For cheap and effective I would say the same as me I use for many stuff around. Cooler Master eXtreme power 500w. Before they were crap but they changed the manufacturer to Seventeam and now its FTW!!!
I use it as spare psu, car battery charger, 12 volts supplier when im in my shed outside to use in a fan, and the fog light inside

Go with it and its a nice warranty, pretty solid, black and enough wires for you

http://www.newegg.com/Product/Product.aspx?Item=N82E16817171031&cm_re=cooler_master_power_supply-_-17-171-031-_-Product

 

[Eric_On_Web]

Sorry for double posting. Oh and there is a mistake on the website..the second rail deliver 18 amps also and not 218 amps

 

[specks]

The TR2-700P (TR2-700AH2NFB) is made by FSP.

They've had questionable quality over the years (IMO).

FYI I'm currently using an OCZ850W which is based on the notoriously troublesome FSP Epsilon platform.

Hmm, I though FPS is a good manufacturer since it is a part of SPI.

Color Coding Scheme:

Green= Very good
Red= stay away
purple= Good PSU, but made by a bad oem


FSP
Known Manufacturers - FSP


Thermaltake
All Other TR2s - Channelwell E161451/E193705

Based from above, FPS is green but i so not know why it was stated that ALL OTHER TR2s(i'm guessing its all TR2s since no TR2s were mentioned other than this)are made by Channelwell which is also green.

 

[specks]

I've got a TR2-850w powering my SLI GTX460 rig. The first one died 30 minutes into use, the replacement has been working fine for about 3 months now.

I think the TR2 wont blow up in my case(hopefully)since i wont be doing any Xfire nor SLI

 

[Wile E]

Maybe I'll get this instead:
http://www.thermaltakeusa.com/Product.aspx?C=1266&ID=1939

What do you think?

For that much money, get the Corsair 750TX or the XFX Pro 750.

 

[manofthem]

For that much money, get the Corsair 750TX or the XFX Pro 750.

I have the Corsair TX750, and I'm running 2 6950's with no problems yet.

 

[niko084]

XIGMATEK ACXTNRP-PC502 500W ATX12V v2.3 SLI Ready ...

You know.... I have gone through about 50 of these and haven't had one go bad, all their voltages seemed very well regulated even when nearing their rated capacity, pretty quiet to, none dead yet and their warranty is pretty sick.