Please identify my card's VRM design

[iB CoMpL3XiTy]

Hi

I've got a GTX 570 that isn't reference design and was wondering if anyone can identify the VRM desgin (E.G how many voltage regulator modules it has)?


Here's some images.

I'm not 100% sure what I'm looking at hence the thread, Any ideas?

Cheers.

 

[Soundood]

i count 15

 

[Tealc]

I reckon there are 15 too. Those components labelled Qxx are likely to be the VRM. Q on PCB refer to transistors and VRM MOSFETs are a type of transistor. Those other components to the left of the chokes are labelled C and are therefore capacitors, although they are rather off shapes.


What does the underside of the stock cooler look like? There'll usually be clues as to where cooling is needed.

 

[w3bbo]

Looks like a Point of View card. Your card uses a 4+1 power phase design (4 for the core and one for the memory) which has 3 MOSFETs per choke (15).

Cooling is generally required on the MOSFETS (the sets of 3 black squares bunched together labelled Q8-Q22

 

[iB CoMpL3XiTy]

Ah ok so the standard 4+1... damn! :/

the cooling for the VRM's and memory chips is just airflow from the 2 80mm fans on the cooler. No heatsinks.

pretty disappointing for a £340 card.

 

[Tealc]

Memory chips don't need much cooling but those VRM would surely cook if they werent in contact with something. There seems to be some sort of metal sticking out of the cooler in the image. What is that?

 

[Jokester]

Depending on the quality of the design, a heatsink isn't necessarily required.

 

[tereu5]

not so sire about POV ...
found this on some site
http://8080.net/posts/19/3188/all

Which looks like yours and and its EVGA

 

[iB CoMpL3XiTy]

@Tealc

Here's an image of my card, notice the cooler only makes contact with the GPU.

The image from POV's website shows a heatsink on the VRM's which mine doesn't have.

@Jokester, that is true, I was just expecting a heatsink considering the high factory overclock, high stock VID (1.050V) and the fact that 570's are known for dying due to VRM's going boom!

@tereu5, Yup the EVGA HD 570 and POV's Beast 570's share the same PCB it seems.