Overclock.net › Forums › Intel › Intel Motherboards › Need help overclocking asus P5G41T-M LX with E6500 cpu
New Posts  All Forums:Forum Nav:

Need help overclocking asus P5G41T-M LX with E6500 cpu

post #1 of 4
Thread Starter 
i seem to have hit a bit of a wall and it seems no matter what I try I cannot seem to get it to even get to post with a FSB beyond 342 Mhz.

at 340 its stable as a rock, at 341 it seems to get a lil touchy on a really hot day even though it is idle and temps are just fine...

It's my sig rig and it runs fine at 3.74 Ghz but i would love to push it over the 4 Ghz barrier smile.gif

The ram is 2x 4GB Geil (value plus DDR3 1600 ram) downtuned to run at 1333

I only get a couple of options for setting the ram speed, Auto, multiplier 1, multiplier 2 (multiplier 1 and 2 seem to be a preset ratio by the motherboard)

here is the cpuz validation results which detail ram timings etc

http://valid.canardpc.com/show_oc.php?id=1687549

at the moment ram timings I think are set by spd, I have tried manually setting them but to be quite honest, not quite sure how to get the tRFC above 20 for the faster ram speeds... as the bios seems to keep defaulting to 20 - i can enter a number lower than 20 and it will retain it, but over 20 it won't.

the ram is running at 681 Mhz yet the JEDEC's for the ram suggest it can run at 740 Mhz which would see me being able to push the FSB to 370 Mhz by rights...

I have been cautious I suppose on messing to much with the voltages for NB, VTT and mem voltage

I have tried raising them some - Vtt I tried various voltages up to 1.35

Vcore is currently set at +100mv and I only have the options of auto, +50mv, +100mv, +150mv

I have tried the NB at a 1.35 voltage as well but as I say have not been too sure on what are deemed reasonable values and not wanting to fry tho mobo have been cautious...

I have my PCI frequency manually set at 100Mhz - with the options of auto or manually setting the to anywhere between 90 and 150 mhz


Side note - originally I was using 1333 memory - kingston value ram and i had the same issue of not being able to get to post once the FSB got over 342... so i brought the 1600 ram on the premise that I thought I was ram locked due to the 1333 ram... it seems that it made no difference going to the faster ram.

Any advice, help / suggestions with this will be greatly appreciated.
Lil Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 @3.75Ghz ROG Striker II Extreme 2x ASUS GTX460 SLI 8 Gig Corsair Dominator DDR3 
Hard DriveOptical DriveOSMonitor
2.5TB Samsung Windows 7 Ultimate x64 24" BenQ 
KeyboardPowerCaseMouse
Microsoft Digital Media 3000 Aerocool V12 XT (1000W) Modified Thermaltake Dokker el cheeepo optical 
Mouse Pad
Genius Digitising Tablet 
  hide details  
Reply
Lil Beast
(13 items)
 
  
CPUMotherboardGraphicsRAM
QX9650 @3.75Ghz ROG Striker II Extreme 2x ASUS GTX460 SLI 8 Gig Corsair Dominator DDR3 
Hard DriveOptical DriveOSMonitor
2.5TB Samsung Windows 7 Ultimate x64 24" BenQ 
KeyboardPowerCaseMouse
Microsoft Digital Media 3000 Aerocool V12 XT (1000W) Modified Thermaltake Dokker el cheeepo optical 
Mouse Pad
Genius Digitising Tablet 
  hide details  
Reply
post #2 of 4
I have the same mobo but I'm using E5700 (lower stock FSB).
Worse than yours, I cannot set the FSB to more than 300 MHz.

Could it be that E5700 with 800 MHz FSB can only be overclocked to around 1066 MHz FSB? and yours E6500 with 1066 MHz FSB can only be overclocked to around 1333 MHz FSB?

One more, the board specs said that the max supported FSB is 1333 MHz, and DDR frequency of 1333 MHz (OC). It could be the mobo that limiting your FSB
Edited by teki_otaku - 5/16/11 at 11:05pm
E5700 on training
(14 items)
 
  
CPUMotherboardGraphicsRAM
E5700 @ 3.75GHz P5G41T-M-LX Sapphire HD 5770 1GB Corsair Vengeance 
Hard DriveOptical DriveOSMonitor
WD Caviar Green 500 GB Samsung DVDRW XP 32 bit LG E1941T @ 1360x768 
KeyboardPowerCaseMouse
Logitech CM Extreme Plus 460W CM Elite 310 Microsoft 
Audio
Altec Lansing  
  hide details  
Reply
E5700 on training
(14 items)
 
  
CPUMotherboardGraphicsRAM
E5700 @ 3.75GHz P5G41T-M-LX Sapphire HD 5770 1GB Corsair Vengeance 
Hard DriveOptical DriveOSMonitor
WD Caviar Green 500 GB Samsung DVDRW XP 32 bit LG E1941T @ 1360x768 
KeyboardPowerCaseMouse
Logitech CM Extreme Plus 460W CM Elite 310 Microsoft 
Audio
Altec Lansing  
  hide details  
Reply
post #3 of 4
I to have the same board. I am using an old E6550. I can get the bus speed up to 395 and then it hits the wall. The E6550 multiplier is 7 so the the oc is only up from 2.33 to 2.75. I have had this same chip up to 3.3 in another board.
post #4 of 4
well, i am using P5G41T-M LX with E5400 and i think i get the FSB wall at 274Mhz
nevetheless, the system is intel burn stable at 250 FSB.. tried a lot of options even Vcore increase to +150mv
its not a very good overclocking board
can anyone eleborate the safe limits of NB, Vtt?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 asus P5G41T-M LX HIS 5750 512MB ICEQ+ 2 x 2GB 1600Mhz corsair 
Hard DriveOSMonitorPower
WD 500GB + Seagate 500GB win 7 x64 Samsung SA300 20'' LED corsair vx550 watts 
Case
CM 690 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 asus P5G41T-M LX HIS 5750 512MB ICEQ+ 2 x 2GB 1600Mhz corsair 
Hard DriveOSMonitorPower
WD 500GB + Seagate 500GB win 7 x64 Samsung SA300 20'' LED corsair vx550 watts 
Case
CM 690 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel Motherboards
Overclock.net › Forums › Intel › Intel Motherboards › Need help overclocking asus P5G41T-M LX with E6500 cpu