Asus MAXIMUS V FORMULA question.

[natr0n]

So this board has an 8 pin and a 4 pin for the cpu; is it required to use the 4 pin ? I might need to get a splitter/adapter cable.

 

[oxrufiioxo]

None of the Z390 or X570 boards from Asus require more than just the single 8 pin plugged in so I doubt this board does.

 

[John Naylor]

1. As for Power, generally the 8 pin is necessary , 4 pin recommended for Gaming or Overclocking.. I'd be wary of splitter cables ... if not getting a new PSU w/ appropriate cables, id use only the 8 pin and take it easy.

The manual for this board (Page 1-43) says:

MAXIMUS V FORMULA Manual | Motherboards | ASUS USA

www.asus.com

2. The current (Z390) Formula is the XI. The Maximus V Formula has the Z77 chipset. I have the Maximus VI Formula in one of our Builds. CPUs are more efficient these days

3. Another issue with these older boards is the fan headers. The Z87 VI boards were weird in that they were all anticipated to be the 1st series of boards with all PWM connectors.. And when you look at them, you'd think that was true because they all had 4 pins ... and the manuals said they were PWM. As it turned out nobody could quite get the BIOSs or something right as the CHA / OPT headers were all DCV.

On my Z87 Formula build, I used three Fan PCBs which do not present the clutter of splitter cables, are more reliable and can take a PWM or DCV signal and control up too 11 fans on each header.

If you use a DCV header, you will need to limit the number of connected fans such that total amp draw is < 1 amp . With the PWM Header, you can use the auxillary power cable and controll 11 fans.

The board has seven 4-pin connectors

2 CPU Fan Headers
3 Chassis Fan Headers
3 Optional Fan Headers

If you check the Asus forums thoroughly, you shoud find the topic. I e-mailed tech support and didn't get a response but did get one in the forums from an Asus tech confirming the issue. It's an issue that appears several times.

In any case, with seven connectors you should have no issue with places to connect ya fans.

I have this set up on my VI

Channel 0 - CPU and CPU_OPT => Dual 4500 rpm PWM pumps
Channel 1 - CHA_1 ==> Fan PCB 1 ==> (6) DCV 1250 rpm Radiator fans on 420mm Rad
Channel 2 - CHA_2 ==> Fan PCB 12==> (4) DCV 1250 rpm Radiator fans on 280mm Rad
Channel 3 - CHA_3 ==> Fan PCB 3 ==> (6) 1250 rpm Case fans

All fans are controlled w Asus Fan Expert ... they top out at about 825 rom when under stres stesting and peak at 550-650 when gaming

 

[EarthDog]

So this board has an 8 pin and a 4 pin for the cpu; is it required to use the 4 pin ? I might need to get a splitter/adapter cable.
View attachment 136818

Nope, the 4-pin is optional.

That information is also mentioned in your manual. Though that image shows you can use a 4-pin only on the left side of the 8-pin, or the 4-pin alone (use all of the 8-pin). Odd....

The current Formula is the XI. The Maximus V has the Z77 chipset

He was simply saying that the modern boards do not and he doesn't see why this would.

Edit: wow John...you went from that one line i quoted for almost 10 minutes to another dissertation about fans on the next gen, lol.

 

[natr0n]

Thanks guys.

I wanted to replace my sabertooth board since the bios got corrupted and needs a solder job to fix/replace it. (I can do it but have no patience/head for that atm)

That was 12 phase board with 8pin it oc'd relatively easy as well. This formula board has 8+2 phase. Waiting for it to ship this week. I'll see how it goes. There are some thick gauge 4/8pin to molex adapters on amazon if needed. I know cheap cables/thin gauge catch fire in my experiments under load.

 

[EarthDog]

Thanks guys.

I wanted to replace my sabertooth board since the bios got corrupted and needs a solder job to fix/replace it. (I can do it but have no patience/head for that atm)

That was 12 phase board with 8pin it oc'd relatively easy as well. This formula board has 8+2 phase. Waiting for it to ship this week. I'll see how it goes. There are some thick gauge 4/8pin to molex adapters on amazon if needed. I know cheap cables/thin gauge catch fire in my experiments under load.

it will be just fine for ambient overclocking. Just use your single 8-pin.

 

[natr0n]

I got the board today.Packed well giant box like it was a 50 pound stereo receiver.

The board is clean like brand new looking came with a 2500 and intel heatsink installed. I honestly think this was barely abused. I'm using it now and works well till I put my 2600k and proper heatsink when I get a chance. I got it for about $80 with shipping.