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Undervolt: Silicone lottery


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#21 fabman_uk

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Posted 18 February 2015 - 07:20 PM

https://www.dropbox....C_0258.JPG?dl=0

https://www.dropbox....C_0259.JPG?dl=0

https://www.dropbox....C_0260.JPG?dl=0

 

Here are some images of my BIOS, what do you think?



#22 Master_Scythe

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Posted 18 February 2015 - 08:07 PM

Cool, looks like the feature is unlocked. IntelXTU should be able to modify that, yes.

 

Also, is that an older gigabyte board per chance? If so, is the ALT-F1 menu active? (or whatever that button combo was....)


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#23 fabman_uk

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Posted 18 February 2015 - 08:56 PM

Na, it's a Shuttle motherboard for the Shuttle case. FG41, del to get to the menu. I'm looking into IntelXTU

 

IntelXTU has no options to undervolt, just benchmark.


Edited by fabman_uk, 18 February 2015 - 09:01 PM.


#24 Master_Scythe

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Posted 19 February 2015 - 08:36 AM

What a shame.

 

Just unplug the noisy fan and make sure it doesn't reach 105*C then.

I ran an NVIDIA 6600GT with no fan for 5 years, 140*C daily, it didn't give 2 shits. Still works.


Wherever you go in life, watch out for Scythe, the tackling IT support guy.

"I don't care what race you are, not one f*cking bit, if you want to be seen as a good people, you go in there and you f*ck up the people who (unofficially) represent you in a negative light!"


#25 fabman_uk

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Posted 19 February 2015 - 09:42 AM

What a shame.

 

Just unplug the noisy fan and make sure it doesn't reach 105*C then.

I ran an NVIDIA 6600GT with no fan for 5 years, 140*C daily, it didn't give 2 shits. Still works.

 

Cheers



#26 fabman_uk

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Posted 20 February 2015 - 10:13 AM

Okay, so I couldn't modify the CPU but it is very easy to modify the GPU. The PSU is nowhere near good enough for the GPU when it's at 100% usage as the blue screens attest too.

So using MSI Afterburner I was able to undervolt by a good measure, now trying to eek out a little more. It started at 1.2 and I'm currently testing at 0.85 at the moment, hopefully that is stable. It isnt at 0.80 and is definitely stable at 0.90.

So thanks for your original post and your attempted assistance. Hey temps have dropped about 10c also.

-Edit-
Strange though, in MSI Afterburner I set the voltage to 0.85 but other software reads voltage at 1.00. So I'm not sure if MSI is reducing the voltage correctly or other software is not reading it correctly. Well its default is 1.20 and its definitely had a temperature drop. But I wonder if it registers below 1.00? Thing is the system failed in about 2 seconds with a yellow screen glitch when I set voltage to 0.80, it crashed duting testing at 0.825 but seems to be stable in Crysis and OCCT when at 0.85.

-Edit 2-
I've modified the BIOS to permanently change the voltage used.
High: 850 1200 was 1.20 now 1.05
Medium: 600 1200 was 1.00 now 0.90
Low: 400 1200 was 0.95 now 0.85

On top of that MSI Afterburner is set to run at boot up modifying specs again:
2D: 425 600 0.85 30% Fan (Quiet at 40c)
3D: 600 1200 0.90

If I could get MSI to run the GPU slower speeds I'd try lowering farther.

Edited by fabman_uk, 20 February 2015 - 03:11 PM.


#27 Master_Scythe

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Posted 23 February 2015 - 01:20 PM

That's some neat work :) I've never worried about GPU heat, I've always had external venting and just not given a damn because if it lasts 3 years, then thats probably the end of its useful life, and once again, a silicon chip being shortened to 3 years is probably an 80% drop in life? Im not pushing it that hard.

 

But in a small case, where temperatures are an issue, that's very cool :)


Wherever you go in life, watch out for Scythe, the tackling IT support guy.

"I don't care what race you are, not one f*cking bit, if you want to be seen as a good people, you go in there and you f*ck up the people who (unofficially) represent you in a negative light!"





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