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post #1741 of 9641
Quote:
Originally Posted by mduclow View Post
Is this what ACC is for? Stabilizing a weak core? I've yet to see any concrete info about what ACC is, and what it does.
EDIT: ... other than to unlock cores and cache, but what's the whole -12 to +12 thing for each core?

Marc
ill give it a try and try to get the core stable

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post #1742 of 9641
Well ummm....ACC was a bad idea...my board freaked out and the lights were flickering on the board plus i had to do a repair to windows to get it back... Gotta find another way to get the core stable
post #1743 of 9641
Quote:
Originally Posted by NCspecV81 View Post
I will when I get home. I'm at work right now and don't have access to my bios. However the CPU-NB VDD and CPU-NB Voltage are very important to achieving a high NB frequency, other than cpu temps itself.

CPU-NB VDD voltage adjustments shouldn't be necessary as I used AUTO up until 3300mhz in linx and have posted at 3600mhz NB. However, if you adjust your CPU-NB VDD voltage up it has the ability to become severely unstable and in a lot of cases not even post.

Conversely, the CPU-NB Voltage is the key setting for NB frequency. I use approx 1.55v on this setting, but the odd part is if you adjust the CPU-NB VDD voltage to appox 1.48v it's no longer in red on the CPU-NB voltage @ 1.55v. Although, not stable at all and won't even post @ 3300mhz for me until I drop down the CPU-NB VDD and up the CPU-NB. Actual NB voltage doesn't seem as important to NB frequency as the CPU-NB and CPU-NB VDD voltages.

Your results may vary b/c I'm actually using some spare i7 ram I have (dominator gt's) until I get iandh's ocz's. Apparently i7 ram isn't that great of a choice on amd 790's.

When I get home I'm going to start playing more with the NB voltage and ram dividers to see what effects those have.

Thank you my friend and reps for you. It seems to be working for me. NB upto 2.6 now. Testing.
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post #1744 of 9641
Quote:
Originally Posted by NCspecV81 View Post
the audio drivers are coming from the onboard sound processors on the 4870's.
Well the thing is that it says it's on the PCI bus. And I've reinstalled the HDMI drivers.

I turned off the VDD voltage and the upped the NB voltage to 1.30v (even though I'm at 200 HTT). Upped the SB voltage as well. I'm still getting the messed up textures for a sec when I launch a game.
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post #1745 of 9641
I got another thing to share. I pretty much all the time have max. temperature in prime95, means 62° at only 1.475V and while pushing I allways fail on big FFTs (512/1024). I'm trying every parameter to get the memory play with me and changed DDR Phy to 1.35V. It helps a bit with the FFTs, but much of a surprise it made temps drop 6°C
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post #1746 of 9641
Quote:
Originally Posted by Ethatron View Post
I got another thing to share. I pretty much all the time have max. temperature in prime95, means 62° at only 1.475V and while pushing I allways fail on big FFTs (512/1024). I'm trying every parameter to get the memory play with me and changed DDR Phy to 1.35V. It helps a bit with the FFTs, but much of a surprise it made temps drop 6°C
You should try to get better cooling or back off the OC. 62C is the max safe temp for the 965BE. It is getting kind of dangerous.
post #1747 of 9641
Quote:
Originally Posted by lelouche View Post
You should try to get better cooling or back off the OC. 62C is the max safe temp for the 965BE. It is getting kind of dangerous.
I know, I'm just trying. I don't intend to run any of that or near that on a day-by-day base. I was pretty clear that I could have r.i.p.ped it.

To get much better on temps on high OC though I believe I would have to use phase, I have 34° ambient now and in four months I'll have 40° ambient. I should try to connect a calendar-schedule to the p-states ...
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post #1748 of 9641
Hey guys i need some brainstorms on how to make a core stable if its weaker than the rest...My max stability ive found on this C3 chip is the CPU at 4.1Ghz with 2.8Ghz NB...CPU 4Ghz is stable at 1.45v but CPU 4.1Ghz is stable at 1.56v. CPU-NB stable at 2.8Ghz 1.275v and CPU-NB at 3Ghz i cant get Core #2 stable at all but the other cores are stable at 1.35v.

Core #2 fails with the CPU past 4.1Ghz with 2.8 CPU-NB or when the CPU is at 3.8Ghz with a 3Ghz CPU-NB. Is this what ACC is for if so maybe im using it wrong. Does anyone have any tips tricks or anything on how to get 1 weaker core stable?
post #1749 of 9641
You should be able to get the CPU-NB volts as high as 1.55v if needed, try increasing them to 1.4+ and see if that core stabilizes.

Also, NSpec was talking about this a day or so ago. He was talking about certain combination's of NB volts (there's three different ones that can be adjusted), check back a few posts, or see if he can help out.

MOAR VOLTS!

Marc
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post #1750 of 9641
I just got my gd70 motherboard and some Ripjaw cl7 ram. Everything is on auto except for:

Divider 1:4 ratio
tCL - 8
tRCD - 7
tRP - 7
tRAS - 24
Command Rate - 2

Memory Voltage - 1.65v

I can boot into windows but it crashes after a while.
I noticed in cpu-z it says cpu core speed is 800.00 instead of 3400 and the multiplier is x4.0 instead of 17 and core voltage is 1.016 instead of 1.4.

any suggestions?
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