E5200 + GA-EP45-DS3P Overclock help

[mccappd]

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Fast
CPU Clock Ratio ..........................: 12
Fine CPU Clock Ratio.....................:+.5
CPU Frequency ...........................: 3.45GHz


Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 275Mhz
PCI Express Frequency (Mhz) .........:Set to 100

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


Advanced Clock Control [Press Enter]
CPU Clock Drive...........................: 700mV
PCI Express Clock Drive.................: 700mV
CPU Clock Skew (ps)....................: 0
MCH Clock Skew (ps)...................: 0


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
System Memory Multiplier ..............: 3.00A
Memory Frequency (Mhz) ..............: 840
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................5
tRCD .........................................5
tRP'...........................................5
tRAS..........................................18

Advanced Timing Control
tRRD...........................................5
tWTR..........................................6
tWR............................................6
tRFC...........................................62
tRTP...........................................6
Command Rate (CMD) ....................:2


Channel A
Static tRead Value.........................:9-12
tRD Phase0 Adjustment...................:<<< Leave for all below as well
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.........................:9-12
tRD Phase0 Adjustment...................:<<< Leave for all below as well
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
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: 1.25000V (Bios setting)
CPU Termination…..... 1.200V*.......: 1.200V
CPU PLL…………………....1.500V*.......: 1.200v (manual
CPU Referen.…………....0.755V*.......: Auto
CPU Reference2………,,0.800V*.......:Auto

MCH/ICH
MCH Core…………….....1.100V...........: 1.260V
MCH Reference….…….0.800V...........; Auto
MCH/DRAM Ref.…......0.900V...........: Auto
ICH I/O……………….....1.550V............: Auto
ICH Core…………...……1.100V............: 1.100V

DRAM
DRAM Voltage ……....1.800V............: 2.1v

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) ...........: [Disable]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled]
Integrated Peripherals



I currently have a successful overclock but I am looking to push the CPU futher.

My main concern is the CPU PLL, what is the max volt I can push this to with a 45nm CPU.
I have it set to 1.2V atm with no problems. I'm looking to get this to 4ghz, as the FSB won't be pushed to far I won't have to increase the VTT much just the Vcore. Can anyone clarify what not to pass on the PLL.

[gampamu]

Re: E5200 + GA-EP45-DS3P Overclock help

The Intel specification for the CPU PLL is 1.5V +- 5% (1.425-1.575V) for your processor. http://download.intel.com/design/pro...hts/320467.pdf page 18.

[mccappd]

Technology................: [Disabled]

[profJim]

Re: E5200 + GA-EP45-DS3P Overclock help

Did you load OPTIMIZED bios settings before modifying your bios?

Cpu Termination (VTT) that is too low can cause instability. Try increasing one step at a time and see if this helps.
The general recommendations is that VTT should be at least 0.05 - 0.10 volts lower than Cpu Vcore.

What setting are you using for Static tRead Value?
Which specific stability tests are failing and what is the time of the failure?

CPU Vcore ........ 1.????? ........ : 1.34V
What is the normal Cpu VID displayed in your bios to the left of the ":" in the MIT section?

If you want specific bios suggestions, we need the following:

1) List your system components in your signature.
--> User CP tab (upper left corner of web page)
--> select Edit Signature
--> enter your hardware components (brand, model, etc.)
--> include your bios version
--> preview
--> Save when complete

2) Link to your ram's full specifications.

We can better help you if you include a screenshot that shows:
Memset using the SPD and ">>" tabs
cpu-z main screen
EasyTune6 --> TUNER tab --> ADVANCE tab --> VOLTAGE tab

[mccappd]

Re: E5200 + GA-EP45-DS3P Overclock help

Hi


I'm usually failing during blend test prime 95 during the first 5 minutes usually 1 thread stops working,

My orginal VID is 1.1375v my current is 1.34v and I have yet to update the bios revision.

Edit* I have never load optimized Bios

What setting are you using for Static tRead Value?

This I must have set to auto as I haven't changed this

[mccappd]

Technology................: [Disabled]

[mccappd]

Re: E5200 + GA-EP45-DS3P Overclock help

I'm passing OCCT (Large file) for 8 hour test but failing Prime 95 Blend after 40 mins.

I have upped the Dimm Volt to 2.2v and loosened the timings to 6-6-6-21 and it is now failing after 3 hours on prime.

I'm guessing there is an issue with the Memory strap or modules.

[Psycho101]

Re: E5200 + GA-EP45-DS3P Overclock help

Do you remember the size of FFT that Prime Blend fails on? This can give a clue. If it's ~512K or more it could well be a RAM/MCH issue.

May I suggest a tweak in MCH reference? Temporarily set CPU Term to 1.2V, then set MCH ref to 0.740V. Now put CPU Ref back to 1.3V if that's what you're using. The default for auto is 0.760V @ 1.2 CPU Term (also called VTT, or FSB voltage). Lower values can help stabilise dual core CPU's in particular. When you set VTT back to 1.3, MCH ref will automatically rise, this is fine and is what you want. Setting 0.740V @ 1.2VTT alters the rate at which MCH ref scales with VTT.

Another thing worth notig is that although you beleive the CPU isn't the issue, it may well be. I'm not saying it is, however from experience, you have a very good E5200 if it's happy at 3.8GHz. I've seen some do 4GHs on 1.45V so you may be a lucky dude, but I would give a slight Vcore bump a try too, if temps allow. Try for 1.4V after Vdrop and Droop (Vdroop should be next to zero with LLC on, Vdrop (difference between what's set in BIOS and actual unloaded Vcore in CPU-Z etc) won't be effected and will be the same.

One more thing. I would, before you do anything else, go into the BIOS and re-enable Thermal Monitor 2. This doesn't effect stability or overclocking. It's function is to throttle back the CPU and even turn it off if CPU temps reach a set point (TJMax = 100 roughly). It's strongly recommended you keep it on. Even a new rig can suffer a fan failure or such, and at those clocks, the heat caused could kill your chip or worse.

[mccappd]

Re: E5200 + GA-EP45-DS3P Overclock help

Looks like it was the 512K FFT size that was failing (approx 2hour into the blend test)

I've actually turned the VTT down to 1.2v and set the Vcore 1.375v and its currently running for 3hours+ fine on blend.
The MCH reference is set to .740v and I've also set the thermal monitor back on.

The actual Vcore Idle according to CPU-z is 1.344v

[Psycho101]

Re: E5200 + GA-EP45-DS3P Overclock help

512K is boarder line, but it does point to MCH problems. It sounds like a lower MCH ref has improved things a litlle.

If you have another failure, I'd maybe start increasing VTT in 0.02V steps. If you get to ~1.38-1.4V VTT, switch back to 1.2V and set a 0.720 MCH Ref. Now repeat the test, followed by the increase in VTT again if instability is encountered. You'll know if what you're doing is working as the time between failure will increase. For me personally I consider a 20-30min difference in time beore failure as something that could well happen on a repeat test of the same unstable setting. As you have over a hour improvement, this suggests to me that you're going in the right direction.

[Lsdmeasap]

Re: E5200 + GA-EP45-DS3P Overclock help

Superb advice you got there man! Thanks for all your help around here!!

[mccappd]

Re: E5200 + GA-EP45-DS3P Overclock help

Indeed! I thank everyone for the help given. Its now stable after 8 hours blend testing over night.

Currently I'm installing a WC setup as part of a case mod I've been working on so I will be back for extra assistance ;)

[Psycho101]

Re: E5200 + GA-EP45-DS3P Overclock help

Looking good! You should have a very nice, cool and quiet setup when you finish assembling. If you're temps are good and you want to push the chip, I wouldn't hesitate to use up to 1.55V personally under water to achieve the desired results. It depends on what you're personally comfortable with, but as E5200's are a nice and cheap chip (and awesome performance) I'd be willing to take a risk with it. I'd just buy another if it failed (maybe off eBay and save even more cash).

I'd be interested in an update when you have everything set up, including a before and after of your CPU temperatures. As you'll no doubt get cooler temps, you may even be able to reduce Vcore slightly at your current OC. Vcore is increased in part to combat the increased resistance/impedance as a chip gets warmer, and by better cooling it you reduce that resistance/impedance.

[mccappd]

Re: E5200 + GA-EP45-DS3P Overclock help

I actually got this E5200 from Ebay, I'm willing to risk it ;). The water cooling should be all piped in tomorrow and most likely leak tested. Just waiting on the pump at the moment.

[Psycho101]