Couple of questions about silverstone 1200w

[Mark65428]

Hi

 

I have this psu here:

https://www.silverstonetek.com/en/product/info/power-supplies/ha1200r-pm/

 

I want to ask which side I should choose for the fan, up or down ?

Also about the CPU cable , In the page above it say CPU cable is the 4+4 pin so if I used the 6+2 pin cable would be wrong ?

 

Thanks

[Hinjima]

10 minutes ago, Mark65428 said:

Hi

 

I have this psu here:

https://www.silverstonetek.com/en/product/info/power-supplies/ha1200r-pm/

 

I want to ask which side I should choose for the fan, up or down ?

Also about the CPU cable , In the page above it say CPU cable is the 4+4 pin so if I used the 6+2 pin cable would be wrong ?

 

Thanks

If your case has ventilation on the bottom then you can safely have the fan pointing down.

Most modern cases have this option. If you do not, fan up

 

The CPU EPS connector is 4+4. The GPU PCIE cable is 6+2.  DO NOT use the 6+2 GPU cable in the top left for CPU power.  Use the 4+4 for CPU power.

[Mark65428]

11 minutes ago, Hinjima said:

DO NOT use the 6+2 GPU cable in the top left for CPU power.

Why they did this ?

[Hinjima]

2 minutes ago, Mark65428 said:

Why they did this ?

What do you mean?  The 6+2 is for GPUs. Some Graphics cards only require a 6pin and some require an 8pin.

Some require an 8pin + a 6pin.

This is so you can use it for different GPU's that require different power

This has been the standard for over over a decade now.

[manikyath]

13 minutes ago, Hinjima said:

If your case has ventilation on the bottom then you can safely have the fan pointing down.

Most modern cases have this option. If you do not, fan up

also worth considering, especially for such high spec power supplies, if they have a "zero fan" mode and spend the great majority of time in said zero fan mode, it might be better for PSU thermals to have fan side up.

 

i run my power supply fan side up for this reason.

[Mark65428]

22 minutes ago, manikyath said:

if they have a "zero fan" mode and spend the great majority of time in said zero fan mode, it might be better for PSU thermals to have fan side up.

There is on off switch for this , Fan start in higher temp

 

24 minutes ago, Hinjima said:

What do you mean?

I found my old Corsair has every cables labeled for what usage while this one does not . I can get confused specially 4+4 pin cable fit the gpu

[Hinjima]

6 minutes ago, Mark65428 said:

There is on off switch for this , Fan start in higher temp

 

I found my old Corsair has every cables labeled for what usage while this one does not . I can get confused specially 4+4 pin cable fit the gpu

Yep. Understandable   You are not the first person to be confused about this and definitely not the last!

Just dont mix those cables up, that would be very bad.

My Corsair cables are also marked, its very nice

 

4+4 CPU   -   6+2 Graphics Card.

[Mark65428]

Thanks guys.

[Godlygamer23]

1 hour ago, Mark65428 said:

Why they did this ?

The pin outs for each connector are different - they're similar, but different. If the 6+2 connector was wired the same, but used the connector intended for the CPU, and you plugged it into the CPU power header on the motherboard, you would destroy everything along that path.

[Mark65428]

Another question please.The 24 pin cable has additional 6 pin 3+3 sub branch cable this goes to the socket near the 24 pin ?

 

 

 

[Godlygamer23]

1 hour ago, Mark65428 said:

Another question please.The 24 pin cable has additional 6 pin 3+3 sub branch cable this goes to the socket near the 24 pin ?

Yup.

[Mark65428]

The 16 pin cable deliver 1200w but the 6+2 pin around 750w is this mean 6+2 cable is not single rail ?

[seon123]

9 minutes ago, Mark65428 said:

The 16 pin cable deliver 1200w but the 6+2 pin around 750w is this mean 6+2 cable is not single rail ?

You are saying random terms that are meaningless together. The 12+4 pin is not rated for 1200W, the 6+2 pin is not rated for 750W, and a cable does not have rails. Please try to explain what you're actually asking, without trying to cram in technical terms. 

[Mark65428]

This psu is single rail ?

[seon123]

8 minutes ago, Mark65428 said:

This psu is single rail ?

It is single rail, which is a bad thing. 

[Mark65428]

14 minutes ago, seon123 said:

It is single rail, which is a bad thing. 

Why ?

[seon123]

14 minutes ago, Mark65428 said:

Why ?

"Single rail" isn't really a thing. It's just the marketing way of telling the consumers that they cut corners on the protections and omitted multi rail OCP. With a 1200W single rail PSU, a faulty SSD could pull 1200W through the SATA cable, potentially causing a lot of damage. A PSU with correctly configured multi rail OCP would just safely shut down in that scenario. 

[TatamiMatt]

4 minutes ago, seon123 said:

"Single rail" isn't really a thing. It's just the marketing way of telling the consumers that they cut corners on the protections and omitted multi rail OCP. With a 1200W single rail PSU, a faulty SSD could pull 1200W through the SATA cable, potentially causing a lot of damage. A PSU with correctly configured multi rail OCP would just safely shut down in that scenario. 

Isnt this largely fixed with higher tier PSUs though, having built in protection, like id assume a single rail 1200W seasonic PSU to have the necessary protections if this ever does happen? For lower tier it may be omitted but for the higher tier?

[seon123]

31 minutes ago, TatamiMatt said:

Isnt this largely fixed with higher tier PSUs though, having built in protection, like id assume a single rail 1200W seasonic PSU to have the necessary protections if this ever does happen? For lower tier it may be omitted but for the higher tier?

No. The flagship Seasonic Prime TX-1600 ATX v3.0 is fully happy to send 1600W down a single SATA cable into a faulty SSD. 

 

You're not the only one to think high end single rail PSUs would have that sort of protection, but the protection you're imagining is exactly what multi rail OCP on 12V is. 

[TatamiMatt]

1 minute ago, seon123 said:

No. The flagship Seasonic Prime TX-1600 ATX v3.0 is fully happy to send 1600W down a single SATA cable into a faulty SSD. 

 

You're not the only one to think high end single rail PSUs would have that sort of protection, but the protection you're imagining is exactly what multi rail OCP on 12V is. 

Crazy!

[Mark65428]

Install it. This is the only component upgrade that does not make me feal happy . No more space, speed or better colors