e8500 @4.3Ghz not orthos stable yet?

[xxpharoahxx]

My stepping is E0 so keep that in mind when looking at the low vcore. I test orthos and only get about 1 min with FTT 7-8 then orthos stop, i'm still testing but here are my bios. Please make suggestions so i can get stable for 24/hr use thank you :)

******Gigabyte EP45 UD3P******

E8500 453 X 9.5 4300MHz BIOS F9

Robust Graphics Booster.........................[ Auto ]
CPU Clock Ratio....................................[ 9 ]
Fine CPU Clock Ratio..............................[ 0.5 ]
CPU Frequency 4.0GHz...........................[ 453 x 9.5 ]

******Clock Chip Control******

CPU Host Clock Control.............................[ Enabled ]
CPU Host Frequency (Mhz)........................[ 453 ]
PCI Express Frequency (Mhz).....................[ 100 ]
C.I.A 2 ..................................................[ Disabled ]

******Advanced Clock Control******

CPU Clock Drive....................................[ 800mv ]
PCI Express Clock Drive..........................[ 900mv ]
CPU Clock Skew....................................[ 0ps ]
MCH Clock Skew....................................[ 0ps ]

******DRAM Performance Control******

Performance Enhance ..............................[ Turbo ]
Extreme Memory Profile (XMP)....................[ Disabled ]
(G) MCH Frequency Latch..........................[ 400MHz ]
System Memory Multipler...........................[ 2.00D ]
Memory Frequency 1066............................[ 906 ]
DRAM Timing Selectable.............................[ Manual ]

CAS Latency Time.........................[ 5 ]5
tRCD...........................................[ 5 ]5
tRP.............................................[ 5 ]5
tRAS...........................................[ 15 ]15

******Advanced Timing Control******

tRRD.............................................[ 4 ] Auto
tWTR............................................[ 4 ] Auto
tWR..............................................[ 8 ] Auto
tRFC.............................................[ 68 ] Auto
tRTP.............................................[ 4 ] Auto
Command Rate (cmd).......................[ 0 ] 2T

******Channel A Timing Settings******

Static tRead Value [ 11 ] ...............[ 9 ]
tRD Phase0 Adjustment [ 0 ] ................[ Auto ]
tRD Phase1 Adjustment [ 0 ] ................[ Auto ]
tRD Phase2 Adjustment [ 0 ] ................[ Auto ]
tRD Phase3 Adjustment [ 0 ] ................[ Auto ]

tRD 2rd (Differnt Rank) [ 6 ] ................[ Auto ]
tWR 2wr (Differnt Rank) [ 6 ] ................[ Auto ]
tWR 2rd (Differnt Rank) [ 5 ] ................[ Auto ]
tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto ]

Dimm 1 Clock Skew Control.......................[ Auto ]
Dimm 2 Clock Skew Control.......................[ Auto ]
DDR Write Training..................................[ Auto ]

******Channel A Driving Settings******

Drive Strength Profile..........................[ 1066 ]
Data Driving Pull Up Level.....................[ Auto ]
cmd Driving Pull Up Level......................[ Auto ]
ctrl Driving Pull Up Level.......................[ Auto ]
clk Driving Pull Up Level........................[ Auto ]

Data Driving Pull Down Level....................[ Auto ]
cmd Driving Pull Down Level.....................[ Auto ]
ctrl Driving Pull Down Level......................[ Auto ]
clk Driving Pull Down Level.......................[ Auto ]

******Channel B Timing Settings******

Static tRead Value [ 11 ]................[ 9 ]
tRD Phase0 Adjustment [ 0 ] ................[ Auto ]
tRD Phase1 Adjustment [ 0 ] ................[ Auto ]
tRD Phase2 Adjustment [ 0 ] ................[ Auto ]
tRD Phase3 Adjustment [ 0 ] ................[ Auto ]

tRD 2rd (Differnt Rank) [ 6 ] ................[ Auto ]
tWR 2wr (Differnt Rank) [ 6 ] ................[ Auto ]
tWR 2rd (Differnt Rank) [ 5 ] ................[ Auto ]
tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto ]

Dimm 1 Clock Skew Control.......................[ Auto ]
Dimm 2 Clock Skew Control.......................[ Auto ]
DDR Write Training..................................[ Auto ]

******Channel B Driving Settings******

Drive Strength Profile...........................[ 1066 ]
Data Driving Pull Up Level......................[ Auto ]
cmd Driving Pull Up Level.......................[ Auto ]
ctrl Driving Pull Up Level........................[ Auto ]
clk Driving Pull Up Level.........................[ Auto ]

Data Driving Pull Down Level..................[ Auto ]
cmd Driving Pull Down Level...................[ Auto ]
ctrl Driving Pull Down Level....................[ Auto ]
clk Driving Pull Down Level.....................[ Auto ]

******Motherboard Voltage Control******

Load-Line Calibration [Enabled]
CPU Vcore [ 1.25 ]...................[ 1.30625 ]
CPU Termination [ 1.20 ]...................[ Normal ]
CPU PLL [ 1.50 ]...................[ Normal ]
CPU Reference [ 0.760 ]..................[ Normal ]

MCH Core [1.1 ]......................[ Normal ]
MCH Reference [0.760 ]...................[ Normal ]
MCH/DRAM Refernce [0.900 ]...................[ Normal ]Auto
ICH I/O [1.500 ]...................[ Normal ]1.500
ICH Core [1.100 ]...................[ Normal ]

DRAM Voltage [1.800 ]...................[ 2.100 ]
DRAM Termination [0.900 ]...................[ Normal ]Auto
Channel A Ref [0.900 ]...................[ Normal ]Auto
Channel B Ref [0.900 ]...................[ Normal ]Auto

******Advanced BIOS Features******

Limit CPUID Max to 3..............................[ Disabled ]
No-Execute memory Protect....................[ Disabled ]
CPU Enhance Halt (CIE)..........................[ Disabled ]
C2/C2E State Support............................[ Disabled ]
C4/C4E State Support............................[ Disabled ]
CPU Thermal Monitor..............................[ Disabled ]
CPU EIST Function.................................[ Disabled ]
Virtualization Technology.........................[ Disabled ]

[Psycho101]

Re: e8500 @4.3Ghz not orthos stable yet?

I'm not surprised in the slightest that it fails Orthos right away. There's no way on earth you're going to get it stable with CPU termination, PLL, MCH core and MCH ref on auto. You could very well need a little more Vcore too. It's an E0, but at 4.3GHz, don't expect to be able to keep Vcore super low.

Something much more realistic to try, then tune:

Table removed. Forum is formatting and editing my post on its own!

A note on adjusting MCH ref: It scales as a % of CPU Termination. Set CPU term manually to 1.2V, then set MCH ref to 0.720V. After setting MCH ref, set CPU Term back up. If these settings fail, the first thing I would do would be to try values either side of 0.720 MCH ref. IE, set CPU Term to 1.2 again and try MCH ref = 0.700V and 0.740V.

Do not, ever disable Thermal Monitor functionality. If there is a failed CPU fan, or you accidentally set the wrong CPU voltage, this function could save your CPU from going pop. Sounds rare, but it can happen. notice that when keying in values for voltages with the number keys, that if you type a voltage that can't be set (eg you type 1.272V, rather than the selectable 1.275V) and hit enter, it'll default for the maximum voltage the board allows. Not good!

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

thanx again psycho will test and post new results shortly :

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

ok i ran into a few problems. first a wierd auto change from my bios... to explain.
when i set
Perfromance Enhance [standard]
Extreme Mem Profile (XMP) [disabled]
it changes my ram timings to
5
7
7
20
but i can still manually set to 5-5-5-15 ... odd.

instead i set
Performance Enhance [Turbo]
Extreme Mem Profile (XMP) [Profile 1]
it then changes default ram timings to
5
5
5
15
but i can still manually set to 5-5-5-15

also i did as you said and first set CPU TERM 1.200v then MCH REF 0.720 then CPU TERM Auto but i get a massive MCH REF jump of 0.850. When i did the process again with MCF ref 7.40 it just kept getting higher. Although when i set MCH ref to 0.540 then CPU TERM to auto, it scaled MCH ref to 730. I ran orthos and attached the file of the error. I am commited to getting this sucker stable so bare with me Psycho

[Psycho101]

Re: e8500 @4.3Ghz not orthos stable yet?

Don't set such a low MCH ref. Set it as said, to 0.720 @ 1.2Vtt. It will get higher when you set VTT more than 1.2V, it scales with it on a % basis. The 0.85 or what ever it sets is fine. I'm actually surprised it booted at all at the low MCH ref you set. that's too low, way too low.

Also don't worry about the Auto (left numbers) settings being 5-7-7-20. Disable XMP, it's crap. Set 5-5-5-15 manually, XMP disabled.

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

ok the good news is we are getting some stability, the bad news is not quite there yet. i upped the vcore a little and got more orthos time. see attachment. should i bump up the mch core? btw these settings are with
Performance Enhance [standard]
Extreme Mem Profile [disabled]

i think with
Performance Enhance [Turbo]
Extreme Mem Profile [disabled]
i get better stability and my ram timings auto to
5-5-5-15.

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

cancel my last post. it seems
Performance Enhance [standard]
Extreme Mem Profile [disabled]
gets me further in orthos although it changes my
chan a and b
static tread val from default 11 to 9 but i still set manually to 9 not sure if that makes a diff. but just thought i would give the extra details.

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

great news!!! after upping the vcore to 1.32500 i finally got the oc stable in orthos! thanx for all the help psycho cheers mate!
look at attatchment for orthos result, 1hr and still goin!!!! one last thing, now that i'm stable should i change my static tread value from 9 to 8 like you said in the posts before? and what exactly will this do?

[morph]

Re: e8500 @4.3Ghz not orthos stable yet?

VTT is too high. You shouldn't use more than 1.4V, and even that high I don't think it's necessary. Try changing that to 1.24V-1.32V and test each one for stabillity.

[Capt Proton]

Re: e8500 @4.3Ghz not orthos stable yet?

I hope you kept running Orthos. One hour is a good start, but a long way from declaring that you are stable. I had 8hrs of Prime, 30 runs of Intel Burn Test, several runs of 3D Mark Vantage and 06, and it would still freeze up in Far Cry 2. Remember, every time it locks, and especially if it crashes, errors are written to the Hard Drive. Not long before your install starts to go south. In addition, errors can be written to your hard drive even without crashing or freezing if stability is not 100%. "It is stable enough for me" = "I like doing complete installs on a frequent basis"

[gampamu]

Re: e8500 @4.3Ghz not orthos stable yet?

VTT is too high. You shouldn't use more than 1.4V, and even that high I don't think it's necessary. Try changing that to 1.24V-1.32V and test each one for stabillity.

Yep, set the CPU Term manually to around 1.24. I don't think Psycho101 meant to say "Auto sets this correctly" for this setting.

[Psycho101]

Re: e8500 @4.3Ghz not orthos stable yet?

As said, definately lower CPU Termination. The range between 1.22 and 1.32 is likely all that's needed. As per the template I wrote, start with 1.24V and work up onje step at a time if not stable.

Also, you're not stable yet. A minimum of 8 hours Orthos, but ideally 12-24hours would be stable. Like Capt Proton said, instability can cause RAM corruption, which can cause file corruption, which can cause Windows to bork. I too have had instances where I'm 12 hour prime stable, yet large .rar files (known to be good) always extracted with a corruption error.

If it passes at least 8 hours, with CPU Term significantly lowered from what you have now (1.5V is dangerous, 1.4V is bearable and 1.45 is the absolute pushing the envolope maximum) then you'd be ok to try tRead = 8. If you have a copy of memset, apply tReads in Windows to test their stability. 95% of the time, setting a tRead too low with memset causes a system hang. Setting the next value up from the one that hangs is usually stable.

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

VTT is too high. You shouldn't use more than 1.4V, and even that high I don't think it's necessary. Try changing that to 1.24V-1.32V and test each one for stabillity.

Ok thanx for the heads up i will turn CPU Term to 1.24 and see if stable. will this also affect temps?

[Psycho101]

Re: e8500 @4.3Ghz not orthos stable yet?

VTT won't effect temps. What too much VTT will do is kill your CPU faster than any high temps or a too high Vcore (within reason, obviously a 2.0Vcore on air cooling will probably kill it pretty fast).

[xxpharoahxx]

Re: e8500 @4.3Ghz not orthos stable yet?

Quick Update...


1.)Set CPU Term manually to 1.200
2.)MCH Ref to 0.720
3.)CPU Term manually to 1.24
4.)MCH Successfully scaled to 0.745 which is good because before it scaled MUCH higher. Will begin testing and post soon again thnx for all the help keep it comin