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i5 OC project help

J

jeverson

Weaksauce
Joined
Sep 29, 2009
Messages
95
Hello [H] guys and gals. I just got a new i5 setup that I am in the process of OC'n but seem to have run into a snag. I can't seem to get above 3600Mhz stably. Spec...

MB: ASRock P55 EXTREME4 LGA 1156
CPU: Intel Core i5-760 Lynnfield 2.8GHz
RAM: Patriot Viper II 4GB (2 x 2GB) 240-Pin DDR3 1600 (7x7x7x20)
GPU: XFX ATI HD5870 1Gb
PSU: Thermaltake 650Watt
Cooler: Prolimatech Megahalems Rev B

System info while running Prime95 and CPU-Z...

CPU.jpg
MB.jpg
RAM.jpg
SPD.jpg
GPU.jpg



I have the core voltage set to 1.350 but as you can see the i5 is only using 1.296 at full load so I don't think voltage is the issue. I think it may have something to do with either the memory controller (which is now on the die I believe) or I may need to OC the memory to get to the magical 4000Mhz OC I am looking for on my i5 (a little more would be nice;)). I was wondering if you guys could make some suggestions or point me in the right direction as to what to try next. I have tried increasing/decreasing the BCLK in little bits but if I go much over 184 things start to get screwy pretty quick. Thanks in advance.

Other possibly helpful info...

OS: Win 7 Ult 64bit
 
Last edited:
it's showing a vcore 1.29v because of vdroop, but even so you shouldn't need much to reach 4GHz (this is dependent on the individual chip though).

would you mind posting a bios template with all the current settings? it'd make giving suggestion much easier.

I'd suggest giving this giude a good read through before going much further.

(if I had to make any guesses from what you're saying, I'd say you need to raise your vtt)
 
Skull_Angel said:
it's showing a vcore 1.29v because of vdroop, but even so you shouldn't need much to reach 4GHz (this is dependent on the individual chip though).

would you mind posting a bios template with all the current settings? it'd make giving suggestion much easier.

I'd suggest giving this giude a good read through before going much further.

(if I had to make any guesses from what you're saying, I'd say you need to raise your vtt)
Click to expand...

Thanks. I'll give it a read and try it out.

Hmm... vdroop... maybe my PC needs a little blue pill :p

Also, What is a good tool for creating a BIOS template? Or do I need to take a pic with my camera? Thanks again.
 
jeverson said:
Thanks. I'll give it a read and try it out.

Hmm... vdroop... maybe my PC needs a little blue pill :p

Also, What is a good tool for creating a BIOS template? Or do I need to take a pic with my camera? Thanks again.
Click to expand...

if you do some research into your specific board, some sites/forums that cater to the overclocking community will post blank templates that mirror the bios setting layout. it's pretty much a cut-and-paste document and you have to add your setting in manually.

example;

Code: 
[U][B][SIZE="4"]Asus RampageIII Formula[/SIZE][/B][/U][B]
[SIZE="3"]Extreme Tweaker[/SIZE][/B]

Target CPU Frequency
Target Dram Frequency
LN2 Mode 
QPI Load Line Calibration
_____________________________________
[B]Extreme tweaker[/B]

Sync Mode..................................:
A1 Overclock Tuner......................:
OC from CPU Level Up...................:
CPU Ratio setting..........................:
CPU Turbo Power Limit..................:

[B]<CPU Configuration Sub Menu>[/B]

CPU Ratio setting..........................:
C1E Support.................................:
Hardware Prefetcher.....................:
Adjacent Cache  Line Prefetch.........:
MPS and ACPI MADT Ordering.........:
Intel(r) Virtualization Tech...............:
CPU TM Function.............................:
Execute Disable Bit..........................:
Intel(r) HT Technology.....................:
Active Processor Cores.....................:
A20M..............................................:
Intel(r) Speedstep(TM) Tech.............:
Intel(r) Turbo Mode Tech..................:
Intel(r) C State Tech*.......................:
*C State package limit setting............:
*C1 Auto Demotion...........................:
*C3 Auto Demotion...........................:
_____________________________________
[B]Extreme Tweaker(Continued)[/B]

BCLK Frequency.................................:
PCIE Frequency..................................:
Dram Frequency.................................:
UCLK Frequency..................................:
QPI Link Data Rate...............................:
Memory Configuration Protect...............:

[B]<Dram Timing Configuration Sub Menu>[/B]

[B]1st Information[/B]

CAS# Latency (tCL).........................:
RAS# to CAS# Delay (tRCD).............:
RAS# PRE Time (tRP)......................:
RAS# ACT Time (tRAS)....................:
RAS# TO RAS# Delay.......................:
Ref Cycle Time.................................:
Write Recovery Time.........................:
Read to Pre Time..............................:
Four Act Win Time.............................:
Back to Back Cas# Delay.....................:

[B]2nd Information[/B]

Timing Mode......................................:
Round trip Latency Channel A...............:
Round trip Latency Channel B................:
Round trip Latency Channel C................:

[B]3rd Information[/B]

Write to Read Delay (DD).......................:
Write to Read Delay (DR).......................:
Write to Read Delay (SR).......................:
Read to Write Delay (DD)........................:
Read to Write Delay (DR)........................:
Read to Write Delay (SR)........................:
Read to Read Delay (DD).........................:
Read to Read Delay (DS).........................:
Read to Read Delay (SR).........................:
Write to Write Delay (DD)........................:
Write to Write Delay (DR).........................:
Write to Write Delay (SR)..........................:

[B]Extreme Tweaker (Continued)[/B]

CPU Differential amplitude..........................:
CPU Clock Skew.........................................:
IOH Clock Skew..........................................:
Extreme Engine Digi+..................................:
Digi+ Power Mode.......................................:
PWM Voltage Control...................................:
Load-Line Calibration...................................:
CPU Voltage OCP.........................................:
CPU PWM Frequency....................................:
Extreme OV.................................................:
Extreme OC.................................................:
CPU Voltage.................................................:
CPU PLL Voltage............................................:
QPI/DRAM Core Voltage.................................:
DRAM BUS Voltage.........................................:

[B]<Dram Reference Voltage Sub Menu>[/B]

DRAM DATA Ref. Ch.A.....................................:
DRAM CTRL Ref. Ch.A......................................:
DRAM DATA Ref. Ch.B......................................:
DRAM CTRL Ref. Ch.B.......................................:
DRAM DATA Ref. Ch.C.......................................:
DRAM CTRL Ref. Ch.C.......................................:

[B]Extreme Tweaker (Continued)[/B]

IOH Voltage......................................................:
IOH PCIE Voltage...............................................:
ICH Voltage.......................................................:
ICH PCIE Voltage................................................:
CPU Spread Spectrum.........................................:
PCIE Spread Spectrum.........................................:
 
@ Skull_Angel and anyone else that might be interested...

Thanks for the article. Helped a lot. Unfortunately I was only able to get me system to 3420Mhz :(. And my memory is only running at 1360Mhz instead of it's 1600Mhz rating :(. I guess I will have to do some more reading tweaking to get to that magic 4000Mhz and get my ram to it's regular clock. I will post my BIOS settings soon.


Thanks again.
 
Have you increased QPI voltage? Stock is like 1.1v but 1.35 should be safe. It's the memory controller voltage so it might let you increase that bus speed to 200.

Also your mobo might have something called load line..something. It helps reduce vdroop.
 
Gah Duma said:
Have you increased QPI voltage? Stock is like 1.1v but 1.35 should be safe. It's the memory controller voltage so it might let you increase that bus speed to 200.

Also your mobo might have something called load line..something. It helps reduce vdroop.
Click to expand...

Currently my QPI is set to 1.295 anything over that is considered "overvolted" by my MB. There are several settings I have been wary of bumping up as they are considered "overvolting" on this MB including the CPU V, QPI V, and RAM V. Once my rig has been running for a while as is I might try and bump it up some more. I will try to post that BIOS template after I get home today. Thanks.
 
Couldn't find a template that fits closer to my BIOS so I used what I could from the one in the thread...

Code: 
Asrock  P55 Extreme4
BIOS Ver 1.5

<CPU Configuration Sub Menu>

CPU Ratio setting..........................: 20
C1E Support.................................: Off
Hardware Prefetcher.....................:
Adjacent Cache  Line Prefetch.........:
MPS and ACPI MADT Ordering.........:
Intel(r) Virtualization Tech...............: On
CPU TM Function.............................:
Execute Disable Bit..........................:
Intel(r) HT Technology.....................: N/A
Active Processor Cores.....................: 4
A20M..............................................:
Intel(r) Speedstep(TM) Tech.............: Off
Intel(r) Turbo Mode Tech..................: Off
Intel(r) C State Tech*.......................: Off
*C State package limit setting............:
*C1 Auto Demotion...........................:
*C3 Auto Demotion...........................:
_____________________________________

Extreme Tweaker(Continued)

BCLK Frequency.................................: 172
PCIE Frequency..................................: 100
Dram Frequency.................................: 688
UCLK Frequency..................................:
QPI Link Data Rate...............................: Auto
Memory Configuration Protect...............:

<Dram Timing Configuration Sub Menu>

1st Information

CAS# Latency (tCL).........................: Auto (7)
RAS# to CAS# Delay (tRCD).............: Auto (7)
RAS# PRE Time (tRP)......................: Auto (7)
RAS# ACT Time (tRAS)....................: Auto (20)
RAS# TO RAS# Delay.......................: Auto
Ref Cycle Time.................................: Auto
Write Recovery Time.........................: Auto
Read to Pre Time..............................: Auto
Four Act Win Time.............................: Auto
Back to Back Cas# Delay.....................: Auto

Extreme Tweaker (Continued)

CPU Differential amplitude..........................:
CPU Clock Skew.........................................:
IOH Clock Skew..........................................:
Extreme Engine Digi+..................................:
Digi+ Power Mode.......................................:
PWM Voltage Control...................................:
Load-Line Calibration...................................:
CPU Voltage OCP.........................................:
CPU PWM Frequency....................................:
Extreme OV.................................................:
Extreme OC.................................................:
CPU Voltage.................................................: 1.200
CPU PLL Voltage............................................: Auto (1.855)
QPI/DRAM Core Voltage.................................: 1.295 (any higher and the BIOS considers it over volting)
DRAM BUS Voltage.........................................: 1.695 (any higher and the BIOS considers it over volting)

Anything without a value most likely means that it may have been called something else in my BIOS or not available. Thanks.
 
Last edited:
psilence said:
3.6ghz seems to be widely achievable, but even with an updated BIOS, it may be hit and miss trying to get the cpu to 4ghz on that motherboard. Have you tried updating the BIOS, or are you running the latest?

http://www.techspot.com/review/307-asrock-p55-extreme4-motherboard/page4.html
Click to expand...

Yeah, am on the latest one.

Gah Duma said:
Oh dear, how unfortunate that you have the "worst" overclocking p55 motherboard.
Click to expand...

Not very constructive man :mad: and the reviews I read before buying it said it OC'd just as well as any other board out there.
 
the reviews I read before buying it said it OC'd just as well as any other board out there.
Click to expand...

FAIL

reviews lie, your board is shit, just give up, its likely to fry before it reaches 3.8
 
jeverson said:
Well... as it so happens... I did get it to 4000Mhz yesterday and it is stable. So thanks for your helpful insight D-bag :rolleyes:
Click to expand...

Screenshot or it never happened. jk. Grats. It just takes hours and hours of tinkering to find the right spot.
 
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