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**Chike** · 05-01-2010, 06:58 PM

Re: Overclocking Gigabyte EP45-UD3R

Please use the template from this post for full BIOS settings.
Also if you provide a screen capture as explain in step 4 in this post, and add your system specs tou your forum signature it will help to advise you.

Are current settings stable? What kind of cooling you have, CPU/case/other, what are core temps for full load (Prime95/OCCT/IBT)?

**Vengeancewithin** · 05-01-2010, 09:29 PM

Re: Overclocking Gigabyte EP45-UD3R

Motherboard:Gigabyte Model: EP45-UD3R Rev#:1.1 Bios Version: F11
Cpu: Intel E8500
Ram: Corsair, Model/Part#TWIN2X2048-8500C5D , Newegg.com - CORSAIR DOMINATOR 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model TWIN2X2048-8500C5DPower Supply Unit: Antec, Model# TPQ-850, 850w

note: replace all ?? with the value displayed in your bios.
----> Replace "Auto" with manually set values.

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster -------------- : [Auto]
CPU Clock Ratio ---------------------- : [9]
Fine CPU Clock Ratio ----------------- : [0.5] <-- ignore if not available
CPU Frequency ---------------------: 38000Mhz <-- this is set by your bios

Clock Chip Control
Standard Clock Control
CPU Host Clock Control --------------- : [Enabled]
CPU Host Frequency (Mhz) --------------: [400]
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) ------------------ : [???]
MCH Clock Skew (ps) ------------------ : [???]

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 -------------- : [2.66D] <-- this is the setting that you are using
Memory Frequency (Mhz) ---------------- : [1066]
DRAM Timing Selectable ---------------- : [manual] <-- set to MANUAL for overclocking

Standard Timing Control
CAS Latency Time -------- 5 ---------- : [5]
tRCD ------------------- 7---------- : [5]
tRP --------------------- 7 ---------- : [5]
tRAS ------------------- 24 ---------- : [15]

Advanced Timing Control
tRRD ------------------- ?? ---------- : [Auto]
tWTR ------------------- ?? ---------- : [Auto]
tWR --------------------- ?? ---------- : [Auto]
tRFC ------------------- ?? ---------- : [Auto]
tRTP ------------------- ?? ---------- : [Auto]
Command Rate (CMD) -------------------- : [Auto] <--- 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 --------------------- : [8]
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 --------------------- : [8]
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 ----------------- : [Disabled]
CPU Vcore --------------- 1.25 ---- : [1.3625]

CPU Termination --------- 1.20V* ----- : [1.24]
CPU PLL ----------------- 1.50V* ----- : [1.55]

CPU Reference ----------- 0.76V* ----- : [0.770]
CPU Reference2 ---------- ?.???V* ----- : [Auto]

MCH/ICH
MCH Core ---------------- 1.10V ------- : [1.24]
MCH Reference ----------- 0.76V ------- : [0.765]
MCH/DRAM Ref ------------ 0.90V ------ : [Auto]
ICH I/O ----------------- 1.50V ------- : [Auto]
ICH Core ---------------- 1.10V ------- : [Auto]
DRAM
DRAM Voltage ------------ 1.80V ------- : [2.1]
DRAM Termination -------- 0.90V ------- : [Auto]
Channel A Reference ----- 0.90V ------- : [Auto]
Channel B Reference ----- 0.90V ------- : [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]

Everything appears stable Ran Prime95 for a couple of hours temps never went above 45c the case is a Antec 300, for CPU cooling I have a Artic Cooling Freezer 7 PRO. If I forgot anything let me know Thanks again for the help

Daniel

**Chike** · 05-01-2010, 09:57 PM

Re: Overclocking Gigabyte EP45-UD3R

Best leave Reference values auto unless you tuned them purposly.
Have you tried Static tRead Value 7? Did you need all that vcore?
Personnaly I recomend to use XMP.

To get any further you'll need to use lower memory multiplier, 2.40B usually work up to 450MHz, then a 2.00X multiplier.

Set Static tRead 9 or 10 for now, CPU PLL 1.57, and try higher FSB, 425 then 445, VTT(CPU Termination) and MCH may need to be increased 1-2 ticks. You may try with LLC(Load Line Callibration) enabled and less vcire, disputed feature so it's up to you. MCH/CPU references may need further tweaking.

http://forums.tweaktown.com/f69/how-setup-cpu-mch-gtl-ref-voltages-vs-easytune-29746/

The screen capture may still be helpfull.
Is it a total of 2GB memory?

EDIT: Temps are core temps (read with CoreTemp/RealTemp)?

**Vengeancewithin** · 05-01-2010, 10:29 PM

Re: Overclocking Gigabyte EP45-UD3R

Thanks for the reply. I tried adjusting the settings as you instructed seems to be a little closer as after I save to CMOS it shuts down then restarts then it get to the POST *beep* (didn't do that before) then it shuts down again and restarts with default settings. I adjusted:

Enabled XMP
CPU FSB: 425

CPU PLL: 1.57
CPU Term. 1.28
MCH: 1.28
Set CPU and MCH Reference to Auto

Enabled Load Line Calibration

I am running a total of 2GB of RAM I had another 2 GB (1GB per Stick) but they are being RMA'ed to Corsair. Im not looking to break records with this rig I was really hoping to just get to 3.8 or 4Ghz. Teps are core temps using RealTemp I ran IntelBurn Test at stock and it passed max temp 52c

**Chike** · 05-01-2010, 10:43 PM

Re: Overclocking Gigabyte EP45-UD3R

Don't forget the multiplier 2.40B, unlikely memory would do 1130 without high voltage, if that doesn;t work you'd have to use the 2.00D or 2.00B.
Also Static tRead value 9 or 10m you can try lower it later.

**Vengeancewithin** · 05-01-2010, 11:05 PM

Re: Overclocking Gigabyte EP45-UD3R

Oh sorry I forgot to include those I did change the Memory multi to 2.40b and adjusted the read value to 9. Do you know what the maximum safe voltages are for the:

CPU Termination
CPU PLL
MCH Core

Thanks again for the help

**Chike** · 05-01-2010, 11:16 PM

Re: Overclocking Gigabyte EP45-UD3R

CPU Termination 1.45 vis max by Intel i think, but you shouldn't need more than 1.32-1.36v.
CPU PLL not above 1.61.
MCH Core you probably have enough. 1.21v is max by Intel but there are people that are using 1.4v or even more.

Maybe it's time to tweak MCH Reference or CPU Reference, see the link I posted in post #4. Try 405-410 MHz FSB untill you get errors with Prime95 or IBT, and then tweak them. Often less than 0.76 @ 1.2VTT MCH Reference is needed (0.7-0.74) but might be more too.

Try also to use 9 CPU ratio to eliminate the need for more vcore.

OC temps are more interesting. Under 75c for Prime95 is OK, 70-80c for IBT OK too.

**Chike** · 05-01-2010, 11:23 PM

Re: Overclocking Gigabyte EP45-UD3R

There is also an F12 BIOS that list enhanced memory compatibility might want to try it.

**Vengeancewithin** · 05-01-2010, 11:35 PM

Re: Overclocking Gigabyte EP45-UD3R

Man I have tried a variety of things but I cant even get to a windows loading screen with any of the settings I have tried it always restarts and loads the default BIOS settings. Even a increase of 10 on the FSB results in it defaulting to the default settings. Thanks for the help I appreciate it if you have any other ideas Im all ears.

Thanks
Daniel

**Vengeancewithin** · 05-02-2010, 12:34 AM

Re: Overclocking Gigabyte EP45-UD3R

Hey thanks man I just flashed the BIOS to version F12 and it not only booted with my settings it also boots a lot faster Ill play around using the info you have given if I run into a wall Ill let ya know Thanks Again :-)

Daneil

**Lsdmeasap** · 05-02-2010, 04:57 AM

Re: Overclocking Gigabyte EP45-UD3R

Nice to hear you are running smoothly now!

Go ahead and play with it a bit, then if you have any issues let Chike now and I am sure he will help you get them sorted out

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