- Joined
- May 7, 2011
- Location
- Cook->Kent
Short version:
OC Titans @ 1.2GHz not giving any performance boost while OCd anymore.
Long version:
Many moons ago, I had some issues with one of my Titans giving some boot issue in that the mobo wasn't seeing a card very well. It would essentially not get past POST. Automagically, the issues seemed to disappear after a couple of card BIOS reflashes.
I have a custom bios on there now from I believe the HWBot engineering BIOS. Seems OK. I can clock the card to the target and it claims it reaches there, but I think the issue I'm having is voltage related. I've not yet taken readings off the card, so I'm somewhat relying on AIDA, nvidia Inspector and MSI AB. AB shows the voltage I'm targeting. As of the last test, 1.275V to see if an increase changed what else I'm seeing. I've also disabled LLC, done the corresponding changes within AB's settings to unlock voltage control, and the soft mod to enable 1.3V.
AIDA shows two readings; the VRM and the core. Inspector shows the core it seems.
The issue is the core voltage is reading 1.137 and 1.187 when under load. This is not changing when I bring the voltage down to 1.18 and 1.20. My expectation is that this should change. Now, this could be a BIOS issue, but that shouldn't be the case. I'm also relying on SW sensors here so I'm taking it with a grain of salt.
I'm curious to know whether I could simply be running into HW related issues with these cards now and they're just FUBARED. They've been under water the entire time I've owned them. One from new, one used from someone here, which I suppose was about a year old. There are slight HW differences between them, not from any mod though. My new one was an Asus variant. The used was an EVGA Superclocked.
At any rate, here's where things get strange...
Testing with Asus's RealBench, my GPU BIOS only clock of 1GHz my scores were as follows:
Testing at 1.2GHz, it dropped to:
Interestingly, dropping the clock to 1.1GHz and bumping the memory to 6.1GHz...
What I'm not figuring out here is the first to marks are CPU bound (so Asus says), not GPU, and yet they drop. GPU load never hits more than a 55% power load (set for 125%, though the BIOS allows for 300%) and during non OpenCL marks, the clocks suggest the GPUs are doing next to nothing.
SLI marks in Heaven are barely better than a single card, which means something is really going on, but I don't have the tools to determine whether the GPU is just loading on errors because of the OC or not.
So...any assistance to determine whether my cards are really suffering from OCing at this point is greatly appreciated. They generally still perform very well at 1440 and things like Assetto Corsa and Elite Dangerous have no issues at cranked everything with this setup. But...I want to eek as much out of them as I can.
TIA!
OC Titans @ 1.2GHz not giving any performance boost while OCd anymore.
Long version:
Many moons ago, I had some issues with one of my Titans giving some boot issue in that the mobo wasn't seeing a card very well. It would essentially not get past POST. Automagically, the issues seemed to disappear after a couple of card BIOS reflashes.
I have a custom bios on there now from I believe the HWBot engineering BIOS. Seems OK. I can clock the card to the target and it claims it reaches there, but I think the issue I'm having is voltage related. I've not yet taken readings off the card, so I'm somewhat relying on AIDA, nvidia Inspector and MSI AB. AB shows the voltage I'm targeting. As of the last test, 1.275V to see if an increase changed what else I'm seeing. I've also disabled LLC, done the corresponding changes within AB's settings to unlock voltage control, and the soft mod to enable 1.3V.
AIDA shows two readings; the VRM and the core. Inspector shows the core it seems.
The issue is the core voltage is reading 1.137 and 1.187 when under load. This is not changing when I bring the voltage down to 1.18 and 1.20. My expectation is that this should change. Now, this could be a BIOS issue, but that shouldn't be the case. I'm also relying on SW sensors here so I'm taking it with a grain of salt.
I'm curious to know whether I could simply be running into HW related issues with these cards now and they're just FUBARED. They've been under water the entire time I've owned them. One from new, one used from someone here, which I suppose was about a year old. There are slight HW differences between them, not from any mod though. My new one was an Asus variant. The used was an EVGA Superclocked.
At any rate, here's where things get strange...
Testing with Asus's RealBench, my GPU BIOS only clock of 1GHz my scores were as follows:
Testing at 1.2GHz, it dropped to:
Interestingly, dropping the clock to 1.1GHz and bumping the memory to 6.1GHz...
What I'm not figuring out here is the first to marks are CPU bound (so Asus says), not GPU, and yet they drop. GPU load never hits more than a 55% power load (set for 125%, though the BIOS allows for 300%) and during non OpenCL marks, the clocks suggest the GPUs are doing next to nothing.
SLI marks in Heaven are barely better than a single card, which means something is really going on, but I don't have the tools to determine whether the GPU is just loading on errors because of the OC or not.
So...any assistance to determine whether my cards are really suffering from OCing at this point is greatly appreciated. They generally still perform very well at 1440 and things like Assetto Corsa and Elite Dangerous have no issues at cranked everything with this setup. But...I want to eek as much out of them as I can.
TIA!
Last edited:
