matrix vs top

Geeman1979 · 4 Oct 2013 at 19:35

SiNBaD187 said:
This might well explain why the Platinum I had wouldn't go above 1150 no matter what voltage I threw at it. Prolly just as well as I managed to get an awesome deal today on a MSI 7990 for £360

Wut!

Bargain.....

MOOGLEYS · 4 Oct 2013 at 19:58

SiNBaD187 said:
haha no It was last in stock and he let me have it at trade price

Can you get me one ?

Just had a reply from a chap from Asus that I messaged. His reply makes kind of sense but does not explain why measuring the voltage direct at the card it still shows the voltage to be 1.256v or why the hardware buttons have no effect ? This is what he said.

The driver does not report the adjusted voltage (hence why gpu-z cant read it). This is because MATRIX uses a hardware-level adjustment linked to the voltage tweaking feature on the PCB.

One way to see if the voltage increase works is to compare temperature before and after with low fan RPM.

A lot of user might also think that the voltage increase doesn't work because they do not see any extra OC with higher voltage. This is because most Tahiti XTX (GHz edition) GPUs do not scale with voltage at normal operating temperatures.

My card maxes out at 1.285V. After that the max clock will only go down.

Geeman1979 · 4 Oct 2013 at 20:12

Yeah kind of makes sense. Another way to test it would be! See how high you can get the clocks at stock voltage with any chosen benchmark before it locks up or crashes. Then add voltage until it enables you to complete the benchmark.

Does it say GHz Edition on your contents box MOOGLEYS?

MOOGLEYS · 4 Oct 2013 at 20:20

Geeman1979 said:
Yeah kind of makes sense. Another way to test it would be! See how high you can get the clocks at stock voltage with any chosen benchmark before it locks up or crashes. Then add voltage until it enables you to complete the benchmark.

Does it say GHz Edition on your contents box MOOGLEYS?

His theory does not work for me. The voltage points on the card should indicate the voltage at the card and they are always the same as GPU-Z. When the card goes into low power mode both my multimeter and GPU-Z show the same. GPU-Z must be getting the info.

Yes mine says GHZ edition on the box.

233 · 4 Oct 2013 at 20:32

Does anyone know what voltage a asus hotwire mod allows you to push through a TOP card?

Geeman1979 · 4 Oct 2013 at 20:45

MOOGLEYS said:
His theory does not work for me. The voltage points on the card should indicate the voltage at the card and they are always the same as GPU-Z. When the card goes into low power mode both my multimeter and GPU-Z show the same. GPU-Z must be getting the info.

Yes mine says GHZ edition on the box.

Yeah the voltage discrepancy is baffling me too.

I don't see why the voltage doesn't change up or down on your volt meter while adjusting with Gpu Tweak. Agreed they should match.

MOOGLEYS · 4 Oct 2013 at 23:36

I have just applied this bios update from Asus and hey presto my meter is now showing the voltage as per GPU tweak. GPU-Z still shows 1.265v.

http://www.asus.com/Graphics_Cards/MATRIXHD7970P3GD5/#support

Under Driver & Tools Firmware.

I set the card to 1.3v and had 1.3v indicated on the meter.

I will give it a good testing tomorrow to confirm but right now it seems my card is working as advertised.

MOOGLEYS · 5 Oct 2013 at 00:20

OK now even at stock I'm back to getting tons of screen corruption and restarts.

I think I'm going to give up with this card and try something else..

sgoaty · 5 Oct 2013 at 08:04

OH dear so the matrix maybe isnt a great buy then.

Kaapstad · 5 Oct 2013 at 08:36

MOOGLEYS said:
OK now even at stock I'm back to getting tons of screen corruption and restarts.

I think I'm going to give up with this card and try something else..

Something I have noticed on my Platinums is if I put 1.4v into them all it does is make them run like crap with little benefit, probably where they are getting too hot.

Geeman1979 · 5 Oct 2013 at 08:47

Kaapstad said:
Something I have noticed on my Platinums is if I put 1.4v into them all it does is make them run like crap with little benefit, probably where they are getting too hot.

Definitely down to heat. The standard cooler can't cope with 1.4v and maintain stability.

MOOGLEYS · 5 Oct 2013 at 10:12

I think I just got tired and annoyed las night. Going to start again later with new drivers and see how it goes.

hyperseven · 5 Oct 2013 at 11:33

It was me who made a thread on this before, so if I flash the BIOS from the support page you can change volts?

MOOGLEYS · 5 Oct 2013 at 11:42

hyperseven said:
It was me who made a thread on this before, so if I flash the BIOS from the support page you can change volts?

After flashing the bios update my multi meter is now showing the same or very close to the voltage set in gpu tweak, gpu-z still shows 1.256v so is wrong.

Only downside is after flashing the bios on Asus site my card was artifacting badly even at stock.

I'm going to have another look later today.

hyperseven · 5 Oct 2013 at 11:48

Could you update this thread with results, since in the lake district at the moment and cannot try myself :'(

Geeman1979 · 5 Oct 2013 at 11:52

hyperseven said:
Could you update this thread with results, since in the lake district at the moment and cannot try myself :'(

You can also do it via Gpu Tweak. Just click on the Live update setting and check for updates. Did mine months ago and it runs perfectly fine.

MOOGLEYS · 6 Oct 2013 at 10:24

Ok been playing with this last night.

I have voltage control over the card using GPU Tweak, I have confirmed this with the meter. GPU-Z will not show the voltage for this card so cannot be used to confirm. The only way to confirm is connecting a meter direct or checking temps and fans as mentioned above by the Asus chap.

I also could see a difference using my power meter. If I set the voltage to min and then to max the power being used changed as well.

So after applying the Asus update my card appears to be working exactly as expected.

Buckster · 6 Oct 2013 at 10:37

for similar price - would people recommend the Matrix or the Gigabyte GHz edition (Windforce)

Geeman1979 · 6 Oct 2013 at 10:47

MOOGLEYS said:
Ok been playing with this last night.

I have voltage control over the card using GPU Tweak, I have confirmed this with the meter. GPU-Z will not show the voltage for this card so cannot be used to confirm. The only way to confirm is connecting a meter direct or checking temps and fans as mentioned above by the Asus chap.

I also could see a difference using my power meter. If I set the voltage to min and then to max the power being used changed as well.

So after applying the Asus update my card appears to be working exactly as expected.

Glad to hear you've got it sorted.

Have you tried under volting the card say to 1.2v and checked if the voltage reads correctly?

MOOGLEYS · 6 Oct 2013 at 11:43

Geeman1979 said:
Glad to hear you've got it sorted.

Have you tried under volting the card say to 1.2v and checked if the voltage reads correctly?

I had 900 on the core and 1.186v this is as low as GPU tweak will go. It indicated this on the meter although it was quite eratic for some reason.