ASUS GTX 980 Matrix


ASUS GTX 980 Matrix OC-Guide

The well known Matrix series from ASUS has a new flagship: The GTX 980 Matrix. In this guide I will show you how to overclock this card on air and using extreme cooling methods like liquid nitrogen.

First of all we will take a look at the card itself and the features.

The card comes along with a very strong air cooler with direct heatpipe contact to the GPU. The cooler is equipped with two fans and five heatpipes (1 x 10 mm, 2 x 8 mm and 2x 6 mm). The back of the card is protected by a black anodized aluminium backplate which looks very nice and clean.

IMG_6813 IMG_6814 IMG_6815 IMG_6816

Removing the cooler you can take a look at the PCB of the GTX 980 Matrix fully armed with high quality components. The card comes along with 4 GB of Samsung GDDR5 clocked at 1750 MHz.

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Underneath the small aluminium cooler you can find 12 phases for the GPU, controlled by the DIGI+ IC and 2 for the memory controlled by the uP1641P IC.

One IR3598 Dual Mosfet Driver is taking care of two GPU phases. Each GPU phase consists of one CSD87350Q5D from Texas Instruments which can handle up to 40 Ampere per IC. So in total up to 480 Ampere which equals over 600 Watt without any problems. Enough for some solid overclocking.

IMG_6820 IMG_6821 IMG_6825 IMG_6826

ASUS placed a 4-pin molex connector on the rear end of the PCB which supplies the memory heater of the GTX 980 Matrix. This feature is only needed for extreme overclocking and will guarantee that the memory stays at positive temperatures to improve the memory overclocking.


To enable the memory heater you have to short (solder) two soldering pads on the back of the card. If you want to do some real overclocking you should short both pads like on the picture below. The LN2 mode will enable full voltage controll using the normal GPU Tweak software.

On top left you can find pads to measure the real voltage (GPU, MEM, PLL) and also connectors for hotwire (OVG, OVM, OVL).

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The card also comes along with two different BIOS which you can select with the switch shown in the following picture.


Now we will do some overclocking using the normal BIOS and the stock cooler of the Matrix card. The best software to push this card to the max is the ASUS GPU Tweak which you can download below. You can either use or


  • ASUS Rampage V Extreme
  • Intel Core i7-5960X
  • 4 x 4 GB G.Skill DDR4 3000 C15
  • Phanteks PH-TC14PC CPU cooler
  • Super Flower Leadex 2000 W 8 Pack Edition


  • Windows 7 x64 Service Pack 1
  • GPU-Z 0.8.0
  • GPU-Tweak v2.7.9.0 or v2.7.6.0
  • Furmark
  • 3DMark (use FireStrike Extreme)

You can download the required software here:

ASUS GTX 980 Matrix 3D BIOS
2.26 MB | 693 downloads
27.59 MB | 633 downloads
27.61 MB | 2677 downloads
5.16 MB | 874 downloads


Overclocking guide:

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  • Timm

    Hey Roman,

    best wishes from Berlin and one simple questions about how to establish the connetion from the voltage reading points on the PCB to a DMM.

    If i solder the voltage reading points (seen bottom right corner of the fourth last picture of your guide) to my DMM I’m not sure which GND i can use … can i use the pin right next to it, meaning the same connection i would also use to modify the feedback voltage with a VR or do i have to find an other GND?

    Thanks for your helpfull and very informative guides so far, keep rolling!
    Over and out.

    • Timm

      It’s me again :]

      Maybe i was not excatly enough with my explaination. I don’t want to use VR (cause i see no need to, especaill with the LN2 Bios giving me so much freedom in overclocking already). Only read out the actuall voltages and searching for the right ground 🙂

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