[savumi]

Quote:

X99S SLI PLus
Mosfets: 8x OnSemi 4C08N , 4c05N

i see more mofet on backside. X99S SLI PLus have 16x OnSemi 4C08N and 16x OnSemi 4C05N

 

[CrazyElf]

Quote:

Originally Posted by ziggystardust

How you know that MSI's SFCs are 45A rated? As far as I know they are 60A according to previous MSI datasheets.

Even z87 series msi boards seem to have 60 amp chokes. http://media.msi.com/main.php?g2_view=core.DownloadItem&g2_itemId=105157

MSI has 2 types of "Super Ferrite Chokes".

A square type that seems to be rated for more and a smaller, rectangle type rated for 45A.

Quote:

Originally Posted by savumi

i see more mofet on backside. X99S SLI PLus have 16x OnSemi 4C08N and 16x OnSemi 4C05N

Not sure if its 8 or 16x.

Personally I'm not a big fan of having Mosfets on the backside though. No easy way to cool them. The only time I find it ok is for overkill boards (Gigabyte Z77X-UP7 and MSI Z87 XPower are examples) where well, the Mosfets are so overkill that you could run them without heatsinks.

@Ziggy, the above image would be the smaller rectangular chokes. I think those are 45A. You might want to PM MSI Geno here on the OCN forums if you are unsure.

Below is a GPU with two of the larger square chokes. I think these are at least 60A, possibly higher. Note the VRAM nearby for a size comparison:


Does that answer your question?

Edit 2:
This is a picture from Anandtech of the motherboard model that I am using right now, the Z87 XPower. Look right below the RAM DIMM, between the DIMM and the northbridge heatsink:


You can see the two chokes right beside each other.

 

[Astr627]

I thought the MSI boards are full digital.... What about the long term reliability of those OnSemi 4C08N , 4c05N MOFSETs?

 

[Spectre-]

can someone tell me here whats the best mobo for benching ( pushing high/mild clocks for physics score in 3d benches) from the following -

MSI X99 SLI
Asrock Extreme 4/6
MSI X99S Gaming 7
Asrock X99- WS
Asus X99A
GB X99 Ud3/UD4
GB X99 Gaming 5

reasons i have listed these mobos is because these are between $300-$400 in Australia

 

[CrazyElf]

Quote:

Originally Posted by Spectre-

can someone tell me here whats the best mobo for benching ( pushing high/mild clocks for physics score in 3d benches) from the following -

MSI X99 SLI
Asrock Extreme 4/6
MSI X99S Gaming 7
Asrock X99- WS
Asus X99A
GB X99 Ud3/UD4
GB X99 Gaming 5

reasons i have listed these mobos is because these are between $300-$400 in Australia

To be honest, choice of motherboard is not likely to make a big difference in overclocking and benching, although I would recommend the one with the best VRM and the most stable BIOS.

Another consideration might be motherboard layout. You want a motherboard that can support at least 2 GPUs, ideally with 4 slot spacing between them (allowing the cards to breathe).

Quote:

Originally Posted by Astr627

I thought the MSI boards are full digital.... What about the long term reliability of those OnSemi 4C08N , 4c05N MOFSETs?

They are hybrid analog:digital this generation. In practice though, it will probably not make a huge difference.

I cannot vouch for the reliability of the midrange Mosfets; I would expect though that when it comes to reliability that the higher end boards will in general be more reliable in this regard though.

 

[IluBabe]

Quote:

Originally Posted by CrazyElf

Rampage V Extreme
Mosfets: 8x IR3550
Controller: Digi+ EPU?
Not too sure about these chokes.

Informations by Asus tell they use IR 3555 Powerstages


On the S/Pro/Deulxe and WS they seem to use IR 3550
http://www.ixbt.com/mainboard/asus/asus-x99-e-ws.shtml

 

[Sin0822]

Quote:

Originally Posted by CrazyElf

To be honest, choice of motherboard is not likely to make a big difference in overclocking and benching, although I would recommend the one with the best VRM and the most stable BIOS.

Another consideration might be motherboard layout. You want a motherboard that can support at least 2 GPUs, ideally with 4 slot spacing between them (allowing the cards to breathe).
They are hybrid analog:digital this generation. In practice though, it will probably not make a huge difference.

I cannot vouch for the reliability of the midrange Mosfets; I would expect though that when it comes to reliability that the higher end boards will in general be more reliable in this regard though.

Who wants to see these different VRMs under a thermal camera? ;D

 

[IluBabe]

Quote:

Originally Posted by Sin0822

Who wants to see these different VRMs under a thermal camera? ;D

What a question

We all wanna do so.

And btw. Sin do you plan to make a VRM List for 2011-3 Boards?

 

[ChronoBodi]

so, is there something about the 8 phase setup in the Asus RVE that makes it better than the 12 phases of Asrock?

sorry, total noob on VRM, enlighten me.

 

[Sin0822]

Quote:

Originally Posted by IluBabe

What a question

We all wanna do so.

And btw. Sin do you plan to make a VRM List for 2011-3 Boards?

you know what, if I have time this weekend ill do it. I was waiting for a package to come today, but UPS truck showed up 3 hours late to the facility over 12 hours ago, and so its delayed 4 days, oh and because of bad weather that doesn't exist.

 

[Spectre-]

Quote:

Originally Posted by ChronoBodi

so, is there something about the 8 phase setup in the Asus RVE that makes it better than the 12 phases of Asrock?

sorry, total noob on VRM, enlighten me.

+1 to this

i am gonna upgrade soon and had my mind set on getting the Astock X99 WS since in aus the only thing thats at the same price is the X99-A

 

[IluBabe]

As the name tells the Asrock X99 WS is a Workstation Board like the ASUS X99-E WS. They are meant for stable 24/7 usage without care for oc much. In the end when you chase for high clocks get a oc Board. Potentialy you can get more wattage through the 12 phases but you don't have all the little setttings you have on a oc board to squeez the cpu out.

 

[Spectre-]

Quote:

Originally Posted by IluBabe

As the name tells the Asrock X99 WS is a Workstation Board like the ASUS X99-E WS. They are meant for stable 24/7 usage without care for oc much. In the end when you chase for high clocks get a oc Board. Potentialy you can get more wattage through the 12 phases but you don't have all the little setttings you have on a oc board to squeez the cpu out.

no i want to know what makes the asus 8 phases better/ equal to the asrock 12 phases

 

[Blameless]

Quote:

Originally Posted by Spectre-

no i want to know what makes the asus 8 phases better/ equal to the asrock 12 phases

Eight true phases (vs. six with doublers on the ASRock) and potentially a controller with less overshoot/less need for vdroop. However, the ASRock setup does look like it should be able to handle more current.

I would be pretty surprised if the VRM was anywhere near the limiting factor for on either the ASUS or ASRock (or most other X99 boards) unless you shooting for some pretty insane clocks with exotic cooling.

 

[Spectre-]

Quote:

Originally Posted by Blameless

Eight true phases (vs. six with doublers on the ASRock) and potentially a controller with less overshoot/less need for vdroop. However, the ASRock setup does look like it should be able to handle more current.

I would be pretty surprised if the VRM was anywhere near the limiting factor for on either the ASUS or ASRock (or most other X99 boards) unless you shooting for some pretty insane clocks with exotic cooling.

oh ok cool

thanks for that

is there anything different between X99-A and pro mobo in terms of power phases

cuz it seems like the pro just gives me bluetoothh and wifi ( things i dont need)

 

[IluBabe]

Quote:

Originally Posted by Spectre-

oh ok cool

thanks for that

is there anything different between X99-A and pro mobo in terms of power phases

cuz it seems like the pro just gives me bluetoothh and wifi ( things i dont need)

by given information in this therad the "A" ("S" since it is between) and "PRO" use 8x ON Semiconductor NTMFD4C85N - and when the pwm is the same they should behave the same. You only get for your > $50 bucks the white color frame, and WLAN 802.11a/b/g/n/ac, Bluetooth 4.0, inkl. M.2-PCIe-Adapter (ASUS Hyper M.2 X4). So in the end nothing to be excited about.

 

[Astr627]

The VRM on X99-A seems to be very good. I switched from another brand to Asus X99-A recently and the i7-5820K is stable at 4.3G with 1.216 vcore. Previously it needs 1.23V to be stable. So the vcore really depends on both the CPU and mobo?

 

[Sin0822]

and BIOS settings, so if you aren't setting the LLC or VIN the boar dis probably auto regulating them with their own auto rules, which differ for each brand.

 

[TinyMan]

The Asus X99-S has the following components:

Mosfets: 8x IR3550
Controller: Asus DIGI+ ASP1257
Chokes: -

So it exactly uses the same components as the Deluxe variant.

Source: ru.gecid.com/mboard/asus_x99-s/

Spoiler: Images

 

[Vlada011]

Where is best VRM/mosfet on X99, Rampage 5 Extreme?
ASRock X99M Killer look good too.