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[Official] Galax (Galaxy / KFA2) HOF Owner's Club - Page 259

post #2581 of 4000
Quote:
Originally Posted by rowanr View Post

There is a BIOS loaded, I was just wondering if the backup one was left blank for us to decide what to put on. The documentation that comes with the card is ****house.
i tried mine and nothing changes at all my card runs at the exact same specs and i still cant change the voltage???
post #2582 of 4000
Quote:
Originally Posted by Tuckers View Post

i tried mine and nothing changes at all my card runs at the exact same specs and i still cant change the voltage???


If you change the max voltage in the bios the card will use it.
But the main problem is the heat, because when the GPU hit 60º+ increasing the voltage won't help, the GPU won't run stable.
I feed my card with 1.275v and it stuck in 1430 MHz without artefacts ( I can check the real voltage with HOF_NVVDD_Public_V2 or digital multimeter, GPUZ will show only 1.212v).
Resuming, this GPU only will run faster and stable in the water.

Just to let you know, my GPU can run in 1470 MHz in the Firestrike, but only in 1430 running The witcher 3.

Maybe my low ASIC is holding some MHz, but nothing out of most of cases.


And sorry by my bad English.
post #2583 of 4000
Quote:
Originally Posted by eddesigner View Post

If you change the max voltage in the bios the card will use it.
But the main problem is the heat, because when the GPU hit 60º+ increasing the voltage won't help, the GPU won't run stable.
I feed my card with 1.275v and it stuck in 1430 MHz without artefacts ( I can check the real voltage with HOF_NVVDD_Public_V2 or digital multimeter, GPUZ will show only 1.212v).
Resuming, this GPU only will run faster and stable in the water.

Just to let you know, my GPU can run in 1470 MHz in the Firestrike, but only in 1430 running The witcher 3.

Maybe my low ASIC is holding some MHz, but nothing out of most of cases.


And sorry by my bad English.

I have my card under water. My card is running at 1520 and stable while gaming, this is with the default bios. If I try any higher than, GPU-Z says I need more voltage. TDP doesn't go above 90% if I recall so that's not the issue. Having read the OC appendix posted here earlier, it seems certain that removing TDP limit is possible and that the switch at the back is for dual bios and not hyper boost (although I'm not sure which one is empty and which one has the default one).

That said, I see two issues: I'm not sure how much the voltage can be increased before hardware limits kick in (if any, no idea). Second, it seems that increasing voltage might not have has much of an effect when overclocking the 980 TI HOF which means it might not be worth (this was also mentioned in the Galax appendix).

Btw, were you able to measure the voltage directly from the card as opposed to relying on software?
post #2584 of 4000
Quote:
Originally Posted by fisher6 View Post

I have my card under water. My card is running at 1520 and stable while gaming, this is with the default bios. If I try any higher than, GPU-Z says I need more voltage. TDP doesn't go above 90% if I recall so that's not the issue. Having read the OC appendix posted here earlier, it seems certain that removing TDP limit is possible and that the switch at the back is for dual bios and not hyper boost (although I'm not sure which one is empty and which one has the default one).

That said, I see two issues: I'm not sure how much the voltage can be increased before hardware limits kick in (if any, no idea). Second, it seems that increasing voltage might not have has much of an effect when overclocking the 980 TI HOF which means it might not be worth (this was also mentioned in the Galax appendix).

Btw, were you able to measure the voltage directly from the card as opposed to relying on software?
Both my cards had the buttons pushed in so I left them like that, I did try both but it made no difference anyway.
Might not be worth increasing the volts then as I'd rather not flash a new bios as I'm still uncertain how to do it in sli.
I checked the volts with the kfa2 software and I was at factory settings getting 1404mhz on both cards in sli.
Did yours come factory at 1520 or do u mean u got that without touching the volt offset?

Ps mines the wc edition so not on air . Also I clicked the eazy button on the xtreme tuner and it went to like 1440mhz so is it worth pushing the card higher or just leave it at that?

Thanks
Edited by Tuckers - 10/21/15 at 12:10pm
post #2585 of 4000
Quote:
Originally Posted by fisher6 View Post

I have my card under water. My card is running at 1520 and stable while gaming, this is with the default bios. If I try any higher than, GPU-Z says I need more voltage. TDP doesn't go above 90% if I recall so that's not the issue. Having read the OC appendix posted here earlier, it seems certain that removing TDP limit is possible and that the switch at the back is for dual bios and not hyper boost (although I'm not sure which one is empty and which one has the default one).

That said, I see two issues: I'm not sure how much the voltage can be increased before hardware limits kick in (if any, no idea). Second, it seems that increasing voltage might not have has much of an effect when overclocking the 980 TI HOF which means it might not be worth (this was also mentioned in the Galax appendix).

Btw, were you able to measure the voltage directly from the card as opposed to relying on software?


Yes, the switch at the back is used to switch between the two bios. You should to power off the power supply to change the boot bios, if the motherboard is in standby the bios won't change and when you power on the system, the VGA will boot with the bios used for the last time. At least it's what happen in my case. My motherboard is an Asus Maximus VII Hero.
TDP and Power Limit can be raised editing the bios. If I use the default TDP and PL, the max GPU clock is 1402 MHz in my card because the performance is cap by the total power consumption.

If you remove the backplate you will see some points to measure the voltages. With the multimeter just put the positive cable in GPU_V and the ground cable in the GND of the board. As I said, the HOF_NVVDD_Public_V2 show the real voltage input in the GPU.
post #2586 of 4000
Quote:
Originally Posted by eddesigner View Post

Yes, the switch at the back is used to switch between the two bios. You should to power off the power supply to change the boot bios, if the motherboard is in standby the bios won't change and when you power on the system, the VGA will boot with the bios used for the last time. At least it's what happen in my case. My motherboard is an Asus Maximus VII Hero.
TDP and Power Limit can be raised editing the bios. If I use the default TDP and PL, the max GPU clock is 1402 MHz in my card because the performance is cap by the total power consumption.

If you remove the backplate you will see some points to measure the voltages. With the multimeter just put the positive cable in GPU_V and the ground cable in the GND of the board. As I said, the HOF_NVVDD_Public_V2 show the real voltage input in the GPU.
Is both of the bios's the same other than a different fan curve?
post #2587 of 4000
Quote:
Originally Posted by Tuckers View Post

Is both of the bios's the same other than a different fan curve?

The button doesn't change the fans, it only switches BIOS. The idea is to put the stock bios on one and mod the other so you don't brick it.

The Galax tuner software seems to show correct voltage, or is it lying to me?
post #2588 of 4000
Quote:
Originally Posted by rowanr View Post

The button doesn't change the fans, it only switches BIOS. The idea is to put the stock bios on one and mod the other so you don't brick it.

The Galax tuner software seems to show correct voltage, or is it lying to me?

It's lying for you.
Just to ilustrate, I made a custom bios with 1.225v and 1240 MHz GPU base clock.
When Heaven is running, the Afterburner and Galax Tuner show 1.212v.
The HOF_NVVDD_Public_V2 is showing the correct voltage.

post #2589 of 4000
Quote:
Originally Posted by eddesigner View Post

It's lying for you.
Just to ilustrate, I made a custom bios with 1.225v and 1240 MHz GPU base clock.
When Heaven is running, the Afterburner and Galax Tuner show 1.212v.
The HOF_NVVDD_Public_V2 is showing the correct voltage.


Couldn't stand using the Galaxy Overclocking Application. Ended up using MSI Afterburner instead as I found it WAY less buggy.
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Intel 2600K ASRock Z68 EXTREME4 GEN3 Gigabyte Windforce 7970 OC Mushkin Enhanced Blackline 8GB (2 x 4GB) 
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Noctua D14 Asus VG248QE Corsair TX 750 V2 Corsair 650D 
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G400, MX518, G500, G5, IMO 1.1, IME 3.0, Deatha... fUnC 1030, QCK+, QCK Heavy, PureTrak Talent Whi... X-Fi Titanium HD Sennheiser HD555 
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post #2590 of 4000
I have been trying to get these cards work on SLI, but so far it looks like its impossible to get working.
After fequent crashes in Killing floor 2 I put cards to run GPUGrid and found that its lower card that fails units.
Tried to swap card places, no difference.
Changed old 1200W Chiftec PSU to 1300W Power Flower, no difference.
Changed lower card place to middle slot (Asus desired place for SLI), no difference.
Put another SLI bridge between cards. Ran furthest, but stil failed at around 3 hours.

Are these cards how sensitive for PCI-e lines? Only thing to test is set all oc in mobo to stock (cause cards already are). I´v been running PCI-e on 115MHz and bit over volted last 4 years without any problems with SLI or single cards. rolleyes.gif

I like how these are working as single after crappy Asus Poseidon which only did 1405/7600 stable, but I wont have use for 2 cards if I cant get these work in SLI.
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