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GTX 600 Series Unlocked Voltage Bios' downloads and tools. - Page 548

post #5471 of 7933
Quote:
Originally Posted by kaneandtaker View Post

Before BIOS mod I could get 1215 MHz stable
After BIOS mod I got only 1241 MHz stable (still needs further testing though)

That's only a mere 26MHz overclock. Is this a reasonable OC from stock voltage to 1.212v? Or my GPUs just sucked at overclocking?
Also, will I have more headroom to overclock the core if I lower my memory's overclock?

Normally it is about 50 MHz.  So a little on the low side for you, but in the ballpark.

Quote:
Originally Posted by hamzta09 View Post

So if I raise my powertarget % to 150 in afterburner, the card will still only draw up to its hardware limit?

Yes.  And it probably won't even get that high since it only draws what it needs.

post #5472 of 7933
Quote:
Originally Posted by Forceman View Post

Yes.  And it probably won't even get that high since it only draws what it needs.

Does mem clock affect games much in any way compared to core?
post #5473 of 7933
Quote:
Originally Posted by Forceman View Post

Normally it is about 50 MHz.  So a little on the low side for you, but in the ballpark.

Do you think if I lowered my memory OC I would have more headroom to be able to increase my core OC?
post #5474 of 7933
Quote:
Originally Posted by Forceman View Post


Different things stress the cards differently. It wasn't unusual for cards that passed Heaven testing to fail in BF3, for example, so it's quite possible the Metro is just stressing your card in a way that Heaven or the other testing you've done doesn't  I'd say memory is probably one way that Metro is more stressful.  Have you tried dialing back your memory overclock?

Ive kept it stock everything except the max voltage and max power target to 140% (even tried 150%).

I really cant figure this out, except that it ties to my PSU being crap possibly.

 

All was fine stock, so I once again adjusted it with KGB with the following:

 

Quote:
# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.
#
Preserve_Original_Checksum = 0


# Fan settings
Fan_Min = 30
Fan_Max = 100


# Board power settings
Max_Power_Target = 140


# Max Boost Frequency. Uncomment this if you want to change the
# maximum frequency your card will boost to.
# Max_Boost_Freq = 1215




# WARNING:
# The following are valid voltages. I suggest you
# use these values rather than coming up with your
# own. 1212500 is the max and it is normally hard limited.
# If you go over the max and your board is hard limited
# you may actually get a much lower voltage than you
# expect.
#
# Voltage = 1212500
# Voltage = 1200000
Voltage = 1187500
# Voltage = 1175000
# Voltage = 1162500
# Voltage = 1150000

 

As you see im not messing with boost.  So once again I bump it up to 140%, 1.187V and fan to 65%, thats it!  And I still get crashes in Metro 2033

I havent intensively tested out with other games, could there be a slim chance that its caused by the beta driver (320.14)?

post #5475 of 7933
Try using the latest WHQL driver. For me, 320.14 and 320.00 are really buggy in BF3 and any game in general. And I would try on another PSU if you can. Odd it's doing that at stock.
post #5476 of 7933
Quote:
Originally Posted by hamzta09 View Post


Does mem clock affect games much in any way compared to core?

 

Depends on the game, but most of them seem to be affected pretty equally by both memory and core, at least in the testing I did. 

 

Quote:
Originally Posted by kaneandtaker View Post


Do you think if I lowered my memory OC I would have more headroom to be able to increase my core OC?

 

Normally there isn't much of a connection between the two, at least not at "normal" overclocks. 

 

Quote:
Originally Posted by YounGMessiah View Post

Ive kept it stock everything except the max voltage and max power target to 140% (even tried 150%).

I really cant figure this out, except that it ties to my PSU being crap possibly.

 

All was fine stock, so I once again adjusted it with KGB with the following:

 

 

As you see im not messing with boost.  So once again I bump it up to 140%, 1.187V and fan to 65%, thats it!  And I still get crashes in Metro 2033

I havent intensively tested out with other games, could there be a slim chance that its caused by the beta driver (320.14)?

 

It's still boosting the same?  Normally increasing the voltage makes the card boost higher, even without touching the boost clock.

post #5477 of 7933
Drivers crashes at 1241 MHz boosted clock with +600 memory offset.
Drivers don't crash at 1241 MHz boosted clock with +0 memory offset.

Now to find out max memory clock...
post #5478 of 7933
Quote:
Originally Posted by Forceman View Post

 

It's still boosting the same?  Normally increasing the voltage makes the card boost higher, even without touching the boost clock.

It boosts more than the stock 1084, it went up to like 1170 something max I believe

post #5479 of 7933
Quote:
Originally Posted by YounGMessiah View Post

It boosts more than the stock 1084, it went up to like 1170 something max I believe

I guess my question was, is it possible that the reason it is crashing with the modded BIOS because it is boosting higher than it did at stock (to an unstable clock speed)? If you mod the BIOS and then put a negative offset in so that the boost clock is the same as stock, does it still crash? I think it may just be that the modded BIOS pushes the clock speed too high, and I was wondering if you had controlled for that possibility
post #5480 of 7933



Decided to stick with 1241MHz boosted core and +700 Memory offset. No artifacts no crashes
The above is my Heaven benchmark result.

But I'm not so sure whether +700 Memory offset is stable? I wonder how to further test video memory stability..
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