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Grumpy 8350, can anybody help? - Page 3

post #21 of 46
Quote:
Originally Posted by cssorkinman View Post

Maybe I missed it, but what psu do you have?

That's a good question cssorkin, we haven't heard yet. It still sounds like the memory to me
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post #22 of 46
Quote:
Originally Posted by Johan45 View Post

Quote:
Originally Posted by cssorkinman View Post

Maybe I missed it, but what psu do you have?

That's a good question cssorkin, we haven't heard yet. It still sounds like the memory to me

I don't know why its always the 7th and 8th core that fails prime first on these chips, but it sure seems to be the norm.

It's also been my experience that multi 12 volt rail psu's can start to strain when visiting the 1.5 volt 4.4 ghz neighborhood with the 8 cores.
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post #23 of 46
Quote:
Originally Posted by cssorkinman View Post

I don't know why its always the 7th and 8th core that fails prime first on these chips, but it sure seems to be the norm.

It's also been my experience that multi 12 volt rail psu's can start to strain when visiting the 1.5 volt 4.4 ghz neighborhood with the 8 cores.

Yes no doubt especially if equipped with a high draw GFX card. I made that mistake once years ago and will never get a split rail PSU again!!
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post #24 of 46
Thread Starter 
Quote:
Maybe I missed it, but what psu do you have?

Corsair CX750M - I also have two 7870s plugged into it. I believe this is a single rail 12V.

So, I shall attempt to flash my my bios, in the mean time, I let me board do whatever it wanted with my timings and it has me set to 11-11-11-32, pretty slow frown.gif

It did this for 1333mhz and 1866mhz, and it still wont pass prime blend test. It actually froze up and gave me a bluescreen at 4.0 ghz. with the ram at 1333 cas11.

Edit: I successfully flashed back to 803, currently everything is at optimized defaults except for the CPU safety features and I have turbo turned off and voltage set to manual. Ram is at 1333mhz cas 9-9-9-24.
FYI - This crucial set is on the QVL for this board, one of the reasons I decided to go with it. It should work at 1866 with 4x4gb, I went with 2x8 cause I figured it'd be easier on the IMC.
Edited by jmcconn110 - 3/19/14 at 9:02pm
post #25 of 46
Thread Starter 
Bios 803 has definitely helped a bit. Its still failing but its lasting a lot longer, and its responding to voltage like one would expect it to. Currently running Prime blend test at 4.5ghz at 1.428V (200x22.5) - ram at 1866 (9-9-9-27). It does seem that I still have some instabilities to work out though. What other voltages can be bumped to improve stability. I seem to have discovered that raising my CPU VDDA voltage above 2.55V causes me to lose stability. It feels very close to being stable, but its still dropping a core after 15-30 minutes of blend.
post #26 of 46
Quote:
Originally Posted by jmcconn110 View Post

Bios 803 has definitely helped a bit. Its still failing but its lasting a lot longer, and its responding to voltage like one would expect it to. Currently running Prime blend test at 4.5ghz at 1.428V (200x22.5) - ram at 1866 (9-9-9-27). It does seem that I still have some instabilities to work out though. What other voltages can be bumped to improve stability. I seem to have discovered that raising my CPU VDDA voltage above 2.55V causes me to lose stability. It feels very close to being stable, but its still dropping a core after 15-30 minutes of blend.

That's great I'm glad were getting somewhere, I really thought that Bios would help. Since the ram seems to be part of the issue I would raise the ram voltage by at least .05v to .1v and raise the CPU_NB voltage to 1.25v. I really have no idea at this point what you have set in your bios so maybe ask more specific questions. Or even list your settings and I could critique them.
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post #27 of 46
Thread Starter 
Hey! AOD Stability Test ran all night 8+hrs! Definitely had issues going to 4.6, but 4.5 is relatively stable, and temps were under 45. So lets see what we can adjust.

Currently my AI Tweaker Page looks as such:

AI Overclock Tuner: Manual
CPU Ratio: 22.5
AMD Turbo: Disabled
CPU Bus Freq: 200
PCIE Freq: 100
Mem Freq: 1866mhz
CPU/NB Freq: 2200
HT Link Freq: 2600

CPU Spread Spectrum:Disabled
PCIe Spread Spectrum: Disabled
EPU Power Saving: Disabled

CPU&NB Voltage: Manual
CPU Manual Voltage: 1.418750
CPU/NB Voltage: 1.25000
CPU VDDA: 2.50000
Dram Voltage: 1.51000
NB Voltage: 1.15000
NB HT Voltage: 1.23125
NB 1.8V: Auto (1.800V)
SB Voltage: Auto (1.100v)
VDD PCIE: Auto (1.100V)
VDDR: Auto (1.200V)

Dram Timing
tCL: 9
tRDC: 9
tRP: 9
tRAS: 27
tRTP: 7
tRRD: 6
tWRD: 7
tCWL: 9
tWRT: 14
tRFC: 300ns
tRC: 47
tRWD: Auto (6)
tRDD: Auto (3)
tWW: Auto (4)
tRR: Auto (4)
Dram Refresh Rate: Auto (7.8ms)
Dram Command Rate: 2T

DIGI+ Power Control
CPU LLC: Ultra High
CPU/NB LLC: High
CPU Current Capability : 130%
CPU/NB Current Capability: 130%
CPU Power Phase: Optimized
CPU Voltage Freq: Auto
VRM Spread Spectrum: Disabled
CPU Power Duty Control: T.Probe
CPU Power Response: Auto
CPU/NB Power Response: Auto
CPU Power Thermal Control: 130
Dram Current Capability: 130%
Dram Voltage Freq: 300
Dram Power Phase: Optimized


That should be everything thats important, all cpu settings are off. Let me know what you think please!
post #28 of 46
It all looks pretty good, a couple things I would change, "NB HT Voltage: 1.23125" shouldn't need it that high with normal bus speeds auto is fine or maybe up to 1.2 and I would also change one ram timing tRDC: 9 > 10. Not sure if it needs it but loosening up that troublesome ram might help a tad.
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post #29 of 46
Thread Starter 
Quote:
"NB HT Voltage: 1.23125" shouldn't need it that high with normal bus speeds

What voltage should I use if I were to raise the FSB to 280? Edit - probably still wont need that much because I will be running HT at 2520mhz with FSB @280

Also what voltages does the CPU/NB require if I run it at 2520mhz?
Edited by jmcconn110 - 3/21/14 at 5:55am
post #30 of 46
Ya the HT would be fine on auto TBH. If you jack up the HT Ref to 280 you might need a bit more voltage to the CPU and CPU_NB. I run both the HT and HT_NB at 1.2 but I do a lot of playing around with different settings.
As for the CPU_NB 1.25-1.28 should run 2400-2600. But it's very chip dependant all three of my FX require different CPU_NB voltages.
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