Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

[SCND30]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Probably so.
Check out Gerardz settng for 3.2GHz. He seems to have a great chip, but although his default vcore is lower than yours and he made it to 3.2GHz with "normal" settings, he had to upgrade his CPU cooler (from stock) and doing quite well with Xigmatek Dark Knight.

But please post full BIOS settings for 3.2GHz, and lets see if you can run with lower vcore.

Thanks again Chike - I can already guarantee it won't even post with anything lower than approximately 1.46 vcore and if it does boot windows (if memory serves me right) itll freeze immediately during prime95. But I can give it a try and post my full BIOS settings. Let me ask this, when you order a Q6600 is it random if you're given one with a lower VID? or is that something you specify when ordering the chip?

[Chike]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Yes the VID you get is random, it is set according to the tests it goes durinng manufactoring/binig.
I had E7200 with VID 1.063v, did 3.8GHz with 1.365v in BIOS, but very hot, the E7500 has VID1.238 and need 1.39375v in BIOS for 3.8GHz, load temps are lower.
Please post full settings, and lets see what we can do.

[SCND30]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Yes the VID you get is random, it is set according to the tests it goes durinng manufactoring/binig.
I had E7200 with VID 1.063v, did 3.8GHz with 1.365v in BIOS, but very hot, the E7500 has VID1.238 and need 1.39375v in BIOS for 3.8GHz, load temps are lower.
Please post full settings, and lets see what we can do.

Chike - Here are the settings I left off at, with these I was able to boot into windows but every time I ran P95 with small ffts either a worker stopped or the system froze in no longer than 30 seconds. I could probably increase the vcore but I'm almost afraid to go above where I left off for fear that I shouldn't be up this high to begin with. Honestly if I could even OC this to 3.1 ghz I'll be satisfied. Anyways here's where I left off unsuccessfully at 3.2ghz:

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster -------------- : [Auto]
CPU Clock Ratio ---------------------- : [8]
Fine CPU Clock Ratio ----------------- : [0.0] <-- ignore if not available
CPU Frequency ---------------------: 3.20 <-- this is set by your bios

Clock Chip Control
Standard Clock Control
CPU Host Clock Control --------------- : [Enabled]
CPU Host Frequency (Mhz) --------------: [401]
PCI Express Frequency (Mhz) ---------- : [100] <--- Set to 100, never leave this on Auto

C.I.A.2 ------------------------------ : [Disabled]

Advanced Clock Control ------- [Press Enter]
CPU Clock Drive ---------------------- : [800]
PCI Express Clock Drive -------------- : [900]
CPU Clock Skew (ps) ------------------ : [0]
MCH Clock Skew (ps) ------------------ : [0]

DRAM Performance Control
Performance Enhance ------------------- : [Standard] <--- set to STANDARD when overclocking
Extreme Memory Profile --- (X.M.P.) --- : [Disabled] <--- Leave this Disabled
(G)MCH Frequency Latch ---------------- : [Auto]
System Memory Multiplier -------------- : [2.00D] <-- this is the setting that you are using
Memory Frequency (Mhz) ---------------- : [800 800]
DRAM Timing Selectable ---------------- : [Auto] <-- set to MANUAL for overclocking

Standard Timing Control
CAS Latency Time -------- 5 ---------- : [Auto]
tRCD ------------------- 5 ---------- : [Auto]
tRP --------------------- 5 ---------- : [Auto]
tRAS ------------------- 15 ---------- : [Auto]

Advanced Timing Control
tRRD ------------------- 3 ---------- : [Auto]
tWTR ------------------- 3 ---------- : [Auto]
tWR --------------------- 4 ---------- : [Auto]
tRFC ------------------- 52 ---------- : [Auto]
tRTP ------------------- 3 ---------- : [Auto]
Command Rate (CMD) -------------------- : [2] <--- Auto or 0 is OK

Driving Strength Profiles
Driving Strength --------- : Press Enter <--- press ENTER to modify memory sub-timings when overclocking

Channel A
Static tRead Value --------------------- : [Auto]
tRD Phase0 Adjustment ------------------ : [Auto] <-- leave this and below set to AUTO
tRD Phase1 Adjustment ------------------ : [Auto]
tRD Phase2 Adjustment ------------------ : [Auto]
tRD Phase3 Adjustment ------------------ : [Auto]
Trd2rd(Different Rank) ----------------- : [Auto]
Twr2wr(Different Rank) ----------------- : [Auto]
Twr2rd(Different Rank) ----------------- : [Auto]
Trd2wr(Same/Diff Rank) ----------------- : [Auto]
Dimm1 Clock Skew Control --------------- : [Auto] ps
Dimm2 Clock Skew Control --------------- : [Auto] ps

Channel B
Static tRead Value --------------------- : [Auto]
tRD Phase0 Adjustment ------------------ : [Auto] <-- leave this and below set to AUTO
tRD Phase1 Adjustment ------------------ : [Auto]
tRD Phase2 Adjustment ------------------ : [Auto]
tRD Phase3 Adjustment ------------------ : [Auto]
Trd2rd(Different Rank) ----------------- : [Auto]
Twr2wr(Different Rank) ----------------- : [Auto]
Twr2rd(Different Rank) ----------------- : [Auto]
Trd2wr(Same/Diff Rank) ----------------- : [Auto]
Dimm1 Clock Skew Control --------------- : [Auto] ps
Dimm2 Clock Skew Control --------------- : [Auto] ps

Motherboard Voltage Control
CPU
Voltage Types------------ Normal -------- Current -----
Load-Line Calibration ----------------- : [Enabled]
CPU Vcore --------------- 1.3500V ---- : [1.46500V]

CPU Termination --------- 1.200V* ----- : [1.300V]
CPU PLL ----------------- 1.500V* ----- : [1.570V]

CPU Reference ----------- 0.760V* ----- : [Auto]
CPU Reference2 ---------- ?? ----- : [Auto]

MCH/ICH
MCH Core ---------------- 1.100V ------- : [1.200V]
MCH Reference ----------- 0.760V ------- : [Auto]
MCH/DRAM Ref ------------ 0.900V ------ : [Auto]
ICH I/O ----------------- 1.1500V ------- : [1.500V]
ICH Core ---------------- 1.100V ------- : [1.100V]
DRAM
DRAM Voltage ------------ 1.800V ------- : [1.900V]
DRAM Termination -------- 0.900V ------- : [Auto]
Channel A Reference ----- 0.900V ------- : [Auto]
Channel B Reference ----- 0.900V ------- : [Auto]

Advanced Settings
Limit CPUID Max. to 3 ------------------ : [Disabled]
No-Execute Memory Protect -------------- : [Enabled]
CPU Enhanced Halt (C1E) ---------------- : [Disabled]
C2/C2E State Support ------------------- : [Disabled]
x C4/C4E State Support ----------------- : [Disabled]
CPU Thermal Monitor 2 (TM2) ------------ : [Enabled]
CPU EIST Function --------------------- : [Disabled]
Virtualization Technology -------------- : [Disabled]

Integrated Peripherals
Legacy USB Storage Detect ------------- : [Disabled]

[Chike]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

OK, kets try this.
First set:
CPU Ratio 6
Vcore 1.35v
VTT(CPU Termination) 1.2v
MCH Reference 0.760v.
Static tRead Value 10, on both channels. and see if you can pass Prime95 small and large 1-2 hours each.
If they fail, try, 0.74, 0.72, and 0.70 MCH Reference, then 1-3 clicks MCH Reference above 0.76(I forgot the options).

[SCND30]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

OK, kets try this.
First set:
CPU Ratio 6
Vcore 1.35v
VTT(CPU Termination) 1.2v
MCH Reference 0.760v.
Static tRead Value 10, on both channels. and see if you can pass Prime95 small and large 1-2 hours each.
If they fail, try, 0.74, 0.72, and 0.70 MCH Reference, then 1-3 clicks MCH Reference above 0.76(I forgot the options).

OK I'll give these a go, I'll check back with you on the results when I get back from work tonight. I'll let you know if they fail. Thanks again.

[profJim]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

FWIW, from what I've seen with overclocked setups that require reference tweaking, MCH reference always required:

• quad core: MCH Reference set above the default setting
• dual core: MCH Reference set below the default setting

Don't forget the correct procedure for changing reference settings:

1. set VTT to the default value = 1.20
2. change the reference setting to the desired value
3. reset VTT back to the previous setting

With modified reference settings, if you want to change the VTT setting, you don't have to change the reference volt settings, the reference settings will auto adjust with the new VTT setting.

My new Xigmatek Balder cpu cooler arrived yesterday.
Installation will be done over the weekend.

[Lsdmeasap]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

You mean to tell me there is no percentages needed when changing the MCH Ref?

No way

[profJim]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

I avoid using percentages because certain forum administrators seem to have "issues" with percentages, especially when decimal points are involved.

[Chike]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Wouldn't it be much more clean to have them as percent? Even less work in BIOS as hey don't need to change with VTT.
x0.8000
x0.7666
x0.7333
x0.7000
x0.6666
x0.6333
x0.6166
x0.6000
x0.5833
x0.5666
x0.5500

[profJim]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Check out the Excel spreadsheet that Conners created in his Q9550 o/c odyssey:
ram divder3.xls

[SCND30]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

OK, kets try this.
First set:
CPU Ratio 6
Vcore 1.35v
VTT(CPU Termination) 1.2v
MCH Reference 0.760v.
Static tRead Value 10, on both channels. and see if you can pass Prime95 small and large 1-2 hours each.
If they fail, try, 0.74, 0.72, and 0.70 MCH Reference, then 1-3 clicks MCH Reference above 0.76(I forgot the options).

What am I setting the fsb? Am I leaving it at 401? As well as all the other settings you didn't mention? Or should I set them to optimal?

[Chike]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Everything the same but those changes.
Setting CPU to 2.4GHz should eliminate all problems that raise from CPU clock.
Once memory/clock settings are stable we will raise CPU ratio.

[SCND30]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Everything ran fine made the changes and ran both small fft and large for 1.5 hours no problems.

[Chike]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

Try CPU Ratio 7, then 8, add vcore as needed, repeat the tests for each.
If you get a blue screen please post the error code.

[Lsdmeasap]

Re: Voltage seems too high for 3.0Ghz Q6600 + EP45-UD3R...

I avoid using percentages because certain forum administrators seem to have "issues" with percentages, especially when decimal points are involved.

Ya I forgot to mention decimals!

Wouldn't it be much more clean to have them as percent? Even less work in BIOS as hey don't need to change with VTT.
x0.8000
x0.7666
x0.7333
x0.7000
x0.6666
x0.6333
x0.6166
x0.6000
x0.5833
x0.5666
x0.5500

Ya, I had a guide made with percentages, but Profjim pointed out how it needed some work (That I never got around to doing). So that is why we had our little laugh

I removed it from my signature a while back to make room for other things

http://forums.tweaktown.com/gigabyte/29746-how-setup-cpu-mch-gtl-ref-voltages-vs-easytune.html