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post #21 of 752
Thread Starter 
New results. Finally got Prime95 stable at a relatively low voltage at 4.8GHz.

The key was to disable CPU VCore Loadline (which as we know, enables LLC on the TP67XE). I also left the Power Features on Energy Efficient. Also, I had to use a fixed CPU VCore (without it I had trouble booting in windows because using offset mode with LLC causes double VCore compensation). During the Prime95 small FTTs run the cpu-z vcore read 1.416V for almost 99% of the time with a couple of spikes to 1.428.

I tried everything I could to stabilize at a CPU PLL of 1.700, finally had to settle for 1.750.

Memory is Corsair Vengeance 2x4GB CL8 DDR-1600, slightly overclocked to DDR3-1866 with slightly looser timings (VIN1 in the screenshot is VDIMM).

At idle CPU-Z shows 1.368Vcore but my core speed is at 1600MHz with a 16x multi and HWMonitor shows a beautiful 6W power draw from the processor with temps on the cores roughly 6-7c above ambient. All in all this might be my 24/7 OC, when I run the lightwave renderer power draw never exceeds 95W and temps stay in the mid-60's on the cores. Initial tests today show I may be able to lower VCORE a little more.


Edited by ugotd8 - 1/21/11 at 4:34pm
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post #22 of 752
Thread Starter 
Well, the above post turned out to be linx and prime95 small ffts stable but prime95 blend would fail within 10 minutes. Re-did the OC and got PLL down to 1.700, raised VCORE to 1.360 resulting in 1.428 load during prime95 blend at virtually the same temps. Also managed to get the RAM to run at DDR3-1866 with 1.55V in BIOS (1.524 reading) at 9-9-9-24-1T. Pretty nice set.

I'll post the template for my 24/7 OC on this board later if there is interest.

Here's some benching goodness, 4.8GHz w DDR3-1866:

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post #23 of 752
Well I just got done spending most of the day going through BSODs and fine tuning. Ran PRIME95 SMALL FTTs for 5 hours while watching some television (An Idiot Abroad is a wonderful watch ) and then IBT for 50 runs on high; I can finally report success!

BIOS: P67AF103.BST (1/3/11)
i5 2500k (L041B721)
Ripjaw X 2133 2x2GB

My rock stable i5 2500k OC @ 4.6 (1.35V) has the following settings:

CPU Configuration
-----------------------------------
Active Processor Cores: All
Limit CPUID Maximum: Disabled
Execute Disable Bit: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
Intel Virtualization Technology: Disabled
Power Technology: Energy Efficient

O.N.E.
------------------------------------
==========Manual CPU System=============
Fixed CPU Ratio: Disabled
CPU Ratio: 33
CPU Base Clock(1/100 MHz): 10000
CPU Core Current Max (Amp): 150
Power Limit 1 Value (Watt): 150
Power Limit 2 Switch: Enabled
Power Limit 2 Value (Watt): 150
Internal PLL Voltage Override: Enabled
Enhanced Intel SpeedStep Technology: Enabled
Turbo Mode: Enabled
1 Core Ratio Limit: 46
2 Core Ratio Limit: 46
3 Core Ratio Limit: 46
4 Core Ratio Limit: 46
CPU C1E: Enabled

==========Manual Memory System=============
DRAM Multiplier: 21.33
DRAM Timing Control: Manual
DRAM Command Rate: 2N
CAS Latency (tCL): 9
Row Precharge Time (tRP): 9
RAS to CAS Delay (tRCD): 11
RAS Active Time (tRAS): 28
Write Recovery Time (tWR): 16
Row Refresh Cycle Time (tRFC): 110
Write to Read Delay (tWTR): 8
Active to Active Delay (tRRD): 7
Read CAS Precharge (tRTP): 8
Four Active Window (tFAW): 32

==========Manual PWM Phase System=============
CPU Request Vcore: ----
CPU Vcore Mode: Offset
CPU Vcore Offset: +0.060
CPU Vcore Fixed: ----
Phase Control: Full On
PWM Work Frequency: Auto
PWM I-OUT Override: Disabled
PWM Thermal report Override: Disabled
CPU VCore LoadLine: Enabled

==========Manual Voltage System=============
CPU PLL: 1.750
DRAM Voltage: 1.612
Vcc SA: Auto
PCH Voltage: Auto
Vcc IO: Auto


Now, I bolded a few things for the following reasons:

1) C1E does not work if you were to use a "fixed" voltage hence the offset voltage. Personally I prefer my computer to be as efficient as possible when not in use. Nothing like seeing an extremely low power draw and amazing temperatures, its like a beast waiting to be unleashed once you throw something at it

2) It seems that pretty much every SB adopter is experiencing weird voltage reports throughout various programs and at times even in the bios. When I was first messing with the offset voltage setting I'd get outrageous numbers that were twice what I wanted, so here is what I did.

A) Enabled CPU VCore LoadLine

B) Booted stock settings and checked the voltage in bios under the hardware tab, and then double checked in CPU-Z once I booted into windows

C) Tweaked offset voltage whilst repeating A until desired voltage was reached

D) Test and run benchmarks of choice

All in all I wanted a fast and quiet OC and that is exactly what I got. Even though I'm sure I can get a much higher OC going, I can't really complain with the extremely low idle and load temperatures (load only reaches 61 on the hottest core!). I'm pretty sure BIOS updates will sort out the loopy voltage settings and further improve future clocking endeavors, but until then I am completely happy.
Edited by duhasttas - 1/23/11 at 12:05am
    
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post #24 of 752
hmm so is it worth it for me to get an 8pin extension so i can run both 8pins?? are you guys doing this or just using 1?
post #25 of 752
Quote:
Originally Posted by koven View Post
hmm so is it worth it for me to get an 8pin extension so i can run both 8pins?? are you guys doing this or just using 1?
Unless you are benching on LN2 and using insane voltages I wouldn't deem it necessary in the least bit. When have you seen a single 8PIN not be able to run a processor at break neck speeds outside of OC competitions?
    
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post #26 of 752
true but would it help overall stability at ~5ghz? i mean, it couldnt hurt right??

or is it really not worth the $/effort

does anyone here run both 8pins?
post #27 of 752
Thread Starter 
Quote:
Originally Posted by duhasttas View Post
Well I just got done spending most of the day going through BSODs and fine tuning. Ran PRIME95 SMALL FTTs for 5 hours while watching some television (An Idiot Abroad is a wonderful watch ) and then IBT for 50 runs on high; I can finally report success!
...
Now, I bolded a few things for the following reasons:

1) C1E does not work if you were to use a "fixed" voltage hence the offset voltage. Personally I prefer my computer to be as efficient as possible when not in use. Nothing like seeing an extremely low power draw and amazing temperatures, its like a beast waiting to be unleashed once you throw something at it

2) It seems that pretty much every SB adopter is experiencing weird voltage reports throughout various programs and at times even in the bios. When I was first messing with the offset voltage setting I'd get outrageous numbers that were twice what I wanted, so here is what I did.

A) Enabled CPU VCore LoadLine

B) Booted stock settings and checked the voltage in bios under the hardware tab, and then double checked in CPU-Z once I booted into windows

C) Tweaked offset voltage whilst repeating A until desired voltage was reached

D) Test and run benchmarks of choice

All in all I wanted a fast and quiet OC and that is exactly what I got. Even though I'm sure I can get a much higher OC going, I can't really complain with the extremely low idle and load temperatures (load only reaches 61 on the hottest core!). I'm pretty sure BIOS updates will sort out the loopy voltage settings and further improve future clocking endeavors, but until then I am completely happy.
Excellent 24/7 OC. I'm sure that will help alot of people. Thank you.

Here's the deal on CPU VCore LoadLine:

If you decide you want to use traditional LLC you must configure it this way:

CPU VCore LoadLine: DISABLED
FIXED CPU VCore: ENABLED

If you want to turn LLC off then:

CPU VCore LoadLine: ENABLED
OFFSET CPU VCore: ENABLED

Using any other combination will result in large overvoltage to the VCORE as you will now be using two different vcore compensation levels on the voltage. I'm hoping that will be more intuitive in a later BIOS.

As to C1E, I don't have that enabled and my VCore is a 1.368 at idle, BUT my power draw reading per HWMonitor is 6W and my multi is 16 at idle since I still have the Energy Efficient setting on in the CPU tab. I really need a kill-a-watt. hehe.
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post #28 of 752
Thread Starter 
Quote:
Originally Posted by koven View Post
true but would it help overall stability at ~5ghz? i mean, it couldnt hurt right??

or is it really not worth the $/effort

does anyone here run both 8pins?
That is a good question. In theory it could help stabilize high overclocks. I just don't see any movement at all on the +12V and the +5V readings in Toverclocker when I'm running prime or anything else. Also, the VDIMM stays steady as a rock. Now the others, VccSA, PCH and VccIO, those show slight upwards movement when I hit the system with a load like P95 or Linx. I don't know if a second 8-pin power would prevent that, seems like more of a function of the BIOS. Hopefully someone with a PSU that has dual 8-pins will come in here and let us know.
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post #29 of 752
Appreciate the compliment ugotd8, looks like you have a good one going yourself. As for the LoadLine feature, I understand that I am using it in an unorthodox way, but it helped to stabilize my OC honestly, yeah I know rather strange, but that leads me to my next point.... Totally agree on future bios needing to be more refined and tuned for accuracy, but this goes for pretty much every manufacturer. Seems like every SB adopter is some sort of beta tester.

I have to say though, the next bios update looks awesome for the TP67XE http://www.xtremesystems.org/forums/...=264932&page=3
Profiles and a sexy UEFI menu, what is not to love (not that I am against the more old school looking one)? Glad I brought a Biostar board again as I remember the TPower x58 being a heck of a beast, and so far it surely doesn't disappoint.
Edited by duhasttas - 1/23/11 at 11:41am
    
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post #30 of 752
Thread Starter 
Oh. don't get me wrong, there is no right way or wrong way. I was just trying to illustrate what I think I learned about this board regarding LLC. I was using offset mode initially and got to more or less where I'm at now with approx same voltage. Thing is tho, when using offset mode (LoadLine enabled) I couldn't get prime95 to pass small FFTs let alone Blend. Now with fixed vcore and LoadLine disabled, I can do both.

TBH, I watched the video in post #2 of this thread and basically started from scratch using a slightly modified version of that approach. So far so good.

Yes, the new BIOS looks cool, thanks for that link.

Your system name had me in tears when I finally got it, too funny.
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