- Joined
- Jan 24, 2016
- Messages
- 12
- Motherboard
- AsRock Z77 Extreme 4
- CPU
- I7 3770k @ 4.4Ghz
- Graphics
- PNY XLR8 GTX 980 (with modded bios)
- Mac
- Classic Mac
- Mobile Phone
Hey Glennv !
Still around, since the last bench post I've not updated my system, that's why there was no update about it
Can't do a long answer now but will be more aviable in 48h
To be clear, you flashed your GC in windows, following instructions in my fist post to hard code frequencies and tdp limits in the GC itself ?
It's the only way to make them seen on Mac.
- You test them on windows to be sure of the stability (with any msi afterburner like)
- Put any "software" oc to 0 (however it will overclock by soft your overclock in GC bios haha)
- Hardcode frequencies in the bios with this link (would be the same for the TI) http://www.overclock.net/t/1517316/...d-980-firmware-zosons-h2o-and-air-custom-bios
- Re-read my fist post with some tips
- Use cinebench on OSX to see if correct values trigger
If you done that and have a problem with your max core frequency it may be the regular/boost frequency in bios.
You put 1500 in core speed and not on the boost and the system take boost value which is supposed to be the max ... But still at 1240
Best thing to do is remove boost and put same value for max regular and boost to be sure.
You can compare my bioses on the first post to see if you have similar values in all your cases from your stock to your OC one.
Be just extra careful to not mix your one and mine then upload mine in your GC
Keep me updated !
Edit: long time I did it but be sure to also have put correct values in the power supply part (which could be confusing, check my oc bios to compare).
It should be the bios part of this option you put to 75w in Windows (75w is the PCI express port max power if I remind well)
Don't increase it more than 75w as it will draw power from your motherboard and may cause instability and too much stress on the compos.
It's much better to take it directly from your power supply on two different line if she can handle it (check max power/12v line on it), if you have a good power supply it should not be a problem.
Do not use a splitter to feed the GC, take power from somewhere else if needed but keep 2 different 12v lines dedicated to the GC.
On my bios I had 1 power line at 160w and the other at only 78w (which is stupid)+ PCIe at approx 75w or less (default is 60w or 75w, no more sure, you can check on my default bios).
Put both power supply lines to 160w, like this it can draw all it need directly from the power supply, if it's stable like this, keep pcie power to default value (the less you touch it/increase it the better it is).
Don't forget to increase max tdp accordingly (and have a good cooling !)
Last thing, check if you increased voltage on the late stages of power to tell the card to draw the power you allowed her to draw on the power supply page.
My guess would be a mistake in power value somewhere
Put my oc bios on a side and your one on the other and check if you have corresponding values modified with your own settings, page by page, should work
Also, post your original bios and your modified one after you did the checks above and I may take a look in few days if it still don't work
If it works, I would be happy if you could post why it wasn't (for reference to future bios overclockers ... And me) and the original and overclocked working bios
Here is the quote from first post:
Btw I will update my OS when I will have time (maybe 1 month or 2) and try to do bench for most versions as I did for previous ones
For now still work perfect !
Still around, since the last bench post I've not updated my system, that's why there was no update about it
Can't do a long answer now but will be more aviable in 48h
To be clear, you flashed your GC in windows, following instructions in my fist post to hard code frequencies and tdp limits in the GC itself ?
It's the only way to make them seen on Mac.
- You test them on windows to be sure of the stability (with any msi afterburner like)
- Put any "software" oc to 0 (however it will overclock by soft your overclock in GC bios haha)
- Hardcode frequencies in the bios with this link (would be the same for the TI) http://www.overclock.net/t/1517316/...d-980-firmware-zosons-h2o-and-air-custom-bios
- Re-read my fist post with some tips
- Use cinebench on OSX to see if correct values trigger
If you done that and have a problem with your max core frequency it may be the regular/boost frequency in bios.
You put 1500 in core speed and not on the boost and the system take boost value which is supposed to be the max ... But still at 1240
Best thing to do is remove boost and put same value for max regular and boost to be sure.
You can compare my bioses on the first post to see if you have similar values in all your cases from your stock to your OC one.
Be just extra careful to not mix your one and mine then upload mine in your GC
Keep me updated !
Edit: long time I did it but be sure to also have put correct values in the power supply part (which could be confusing, check my oc bios to compare).
It should be the bios part of this option you put to 75w in Windows (75w is the PCI express port max power if I remind well)
Don't increase it more than 75w as it will draw power from your motherboard and may cause instability and too much stress on the compos.
It's much better to take it directly from your power supply on two different line if she can handle it (check max power/12v line on it), if you have a good power supply it should not be a problem.
Do not use a splitter to feed the GC, take power from somewhere else if needed but keep 2 different 12v lines dedicated to the GC.
On my bios I had 1 power line at 160w and the other at only 78w (which is stupid)+ PCIe at approx 75w or less (default is 60w or 75w, no more sure, you can check on my default bios).
Put both power supply lines to 160w, like this it can draw all it need directly from the power supply, if it's stable like this, keep pcie power to default value (the less you touch it/increase it the better it is).
Don't forget to increase max tdp accordingly (and have a good cooling !)
Last thing, check if you increased voltage on the late stages of power to tell the card to draw the power you allowed her to draw on the power supply page.
My guess would be a mistake in power value somewhere
Put my oc bios on a side and your one on the other and check if you have corresponding values modified with your own settings, page by page, should work
Also, post your original bios and your modified one after you did the checks above and I may take a look in few days if it still don't work
If it works, I would be happy if you could post why it wasn't (for reference to future bios overclockers ... And me) and the original and overclocked working bios
Here is the quote from first post:
Did also some other modifications to bios:
- Fanless mode (not totaly working on mine but still reduced minimum fan speed to 25 instead of 30)
- Increased max voltage on all late power state mode to avoid any voltage limitation/increase stability earlier
- Increased max tdp to 300w and default to 285 to not be limited too as there is no soft to allow card to go past default value on mac (will not increase it more, TDP in burn at 90% so approx 260W)
- Set power from both supply lines to 160 instead of 78+160 by default. I prefer take max power from it than PCIE port.
Btw I will update my OS when I will have time (maybe 1 month or 2) and try to do bench for most versions as I did for previous ones
For now still work perfect !
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