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Rosewill PSU + Haswell ?

Mukessh
By Mukessh
in Power Supplies
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Go to solution Solved by quan289,

Then tell me a psu that is 80+ and wont support haswell

 

Let me rephrase. Technically, most power supply nowadays will be able to support Haswell, as the crossload scenario that the low power state of Haswell put the PSU in will not be so severe that it will cause the OVP/UVP to trip off and power down. And pretty much most of these power supply indeed have this 80+ badge.

 

However, in order to be officially supported in the eyes of Intel, you need to put it in a scenario where the load of the +12v rail is only 0.15A and max load on the 3.3v/5v rail. While it is a ridiculous way of testing it, many group-regulated design such as the Corsair CX line with the exception of the CX750/m (as it uses a DC-DC convertor on the secondary) will likely fail this testing and will not be "supported", and they are 80+ Bronze power supplies.

 

Here's a thread Jonnyguru made on it (he is currently working at Corsair, btw): http://www.jonnyguru.com/forums/showthread.php?t=10253

"Typically, the PSU, if group regulated, will go beyond 12.6V." Many <$100 USD PSUs are group-regulated and have 80+ certs.

"Yes, no group regulated PSU would pass Intel's testing."

 

He also tested the CX600 with 5.6A on the 3.3v/5v, where it cause the +12v rail to go out of specification. Max load on the 3.3/5v in accordance to Intel testing are: (130/4.15)/2 = 15.66A. A third of the require load that it had went out of specs.

 

Here's another: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story3&reid=318

 

Look at CL1: The voltage of the 12v rail went out of specs: 13.47V (ATX says it cannot go higher than 12.6v), but there's zero amps on the 12v in that testing

But if you look at the 600w version at TPU: http://www.techpowerup.com/reviews/PC_Power_Cooling/Silencer_MK3_600W/5.html

Both the 12v and 5v went out of specs.

 

None of them have been listed as a supported

 

There are other group regulated designs that have higher certification rating as well such as the Antec Earthwatts Platinum and the other group-regulated Aurum iteration that base on it.

______

 

Anyways, At the end of the day, even though there are power supplies that aren't officially supported doesn't mean you are going to have problems in real world usages. Because of that the whole Haswell compatibility is quite over-hyped. The point I'm trying to make is that the assertion that as long as a PSU has 80+ certification doesn't automatically make the PSU "supported", as Ecova, the company that gives these certification, does not test crossload conditions.

Posted

Hey guys , do any of you guys know whether the Rosewill HIVE 750 supports Haswell processors ?

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Hey guys , do any of you guys know whether the Rosewill HIVE 750 supports Haswell processors ?

i dont think so. newegg usually displays a banner saying 4th gen ready. not on this product.

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Check the website, For the record every Corsair PSU is Haswell ready

 

 

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The Rosewill Hive is based on the same Highpower platform as the OCZ ZS. It's an indy-regulated power supply which shouldn't have problem with Haswell.

 

Generally, group-regulated power supplies are the ones that will, in theory, have problems with it, but unless you like running crapload of SSDs and/or USB devices, most proper modern power supplies shouldn't have an issue with Haswell low power state.

 

If it is 80 plus PSU, then it will support.

 

That isn't true...

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The Rosewill Hive is based on the same Highpower platform as the OCZ ZS. It's an indy-regulated power supply which shouldn't have problem with Haswell.

 

Generally, group-regulated power supplies are the ones that will, in theory, have problems with it, but unless you like running crapload of SSDs and/or USB devices, most proper modern power supplies shouldn't have an issue with Haswell low power state.

 

 

That isn't true...

Then tell me a psu that is 80+ and wont support haswell

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  • Solution

Then tell me a psu that is 80+ and wont support haswell

 

Let me rephrase. Technically, most power supply nowadays will be able to support Haswell, as the crossload scenario that the low power state of Haswell put the PSU in will not be so severe that it will cause the OVP/UVP to trip off and power down. And pretty much most of these power supply indeed have this 80+ badge.

 

However, in order to be officially supported in the eyes of Intel, you need to put it in a scenario where the load of the +12v rail is only 0.15A and max load on the 3.3v/5v rail. While it is a ridiculous way of testing it, many group-regulated design such as the Corsair CX line with the exception of the CX750/m (as it uses a DC-DC convertor on the secondary) will likely fail this testing and will not be "supported", and they are 80+ Bronze power supplies.

 

Here's a thread Jonnyguru made on it (he is currently working at Corsair, btw): http://www.jonnyguru.com/forums/showthread.php?t=10253

"Typically, the PSU, if group regulated, will go beyond 12.6V." Many <$100 USD PSUs are group-regulated and have 80+ certs.

"Yes, no group regulated PSU would pass Intel's testing."

 

He also tested the CX600 with 5.6A on the 3.3v/5v, where it cause the +12v rail to go out of specification. Max load on the 3.3/5v in accordance to Intel testing are: (130/4.15)/2 = 15.66A. A third of the require load that it had went out of specs.

 

Here's another: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story3&reid=318

 

Look at CL1: The voltage of the 12v rail went out of specs: 13.47V (ATX says it cannot go higher than 12.6v), but there's zero amps on the 12v in that testing

But if you look at the 600w version at TPU: http://www.techpowerup.com/reviews/PC_Power_Cooling/Silencer_MK3_600W/5.html

Both the 12v and 5v went out of specs.

 

None of them have been listed as a supported

 

There are other group regulated designs that have higher certification rating as well such as the Antec Earthwatts Platinum and the other group-regulated Aurum iteration that base on it.

______

 

Anyways, At the end of the day, even though there are power supplies that aren't officially supported doesn't mean you are going to have problems in real world usages. Because of that the whole Haswell compatibility is quite over-hyped. The point I'm trying to make is that the assertion that as long as a PSU has 80+ certification doesn't automatically make the PSU "supported", as Ecova, the company that gives these certification, does not test crossload conditions.

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if you psu dont support haswell

mots psus do support it but if its not the case you can disable the c6/c7 state in the bios

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