Titan X Pascal behave extremely strange

[SirTryAlot]

Hi guys

 

I have absolutely no clue what the hell my second titan does. I powermodded both. Had couple issueswith triggering 139 mhz safemode. Finally both ramp up to over 2200mhz on water. BUT one cards performance is like 50% of what she should perform.

 

For example:

 

Card 1 GPU PI= 10.5seconds

Card 2 GPU Pi= 22 Seconds

 

Before power modding, both cards achieved roughly 5.5seconds together. Now they need about 8.5. And when done it says one card did 66% of the calcs.

 

I took both cards out of the system, and even just connected one card to see if it stays. Nothing changes at all. Still terrible performance. I changed the PCI-E slot as well and nothing happened. So if you guys have an idea wth this is, i highly appreciate all help!

[subaruwrc]

maybe the " power mod " is f.cked. or the pcie bandwith holds back the other card.

[hotrod717]

Yeah depending on powermod. If you take too much resistance away with shunt mod card will lock in low p-state

[der8auer]

Yeah depending on powermod. If you take too much resistance away with shunt mod card will lock in low p-state

 

Exactly this^^^^^^^^^^

 

That's why I always use liquid metal and don't short the shunts with solder Tim