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Asus P5QPL-AM motherboard vcore locked

Last response: in Overclocking
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January 1, 2010 6:42:57 AM

Hi
Sorry if this is the wrong sub-section
I've got a problem changing my voltage for my pentium dual core e6300 2.8ghz. I'm very new to overclocking. Default fsb is 266 and multiplier is 10.5 maximum. If I take the fsb to 345 or more, my pc wont post. The speed at around 340 mhz fsb is 3.57 ghz. I want to change the vcore voltage, but in my bios (American Megatrends Inc, version 0312) the vcore voltage only has 2 options, auto or ignored. I'm not looking for a permanent overclock, just for like 5 mins or something, then run a game, then change it back. I change the NB voltage, but that didnt help. CPU voltage at stock is 1.144V, and goes up to 1.152 at idle, with EIST enaled. Is it a jumper configuration to change on my motherboard? And also, when overclocked, Speedfan shows wonked temps for my core0 and core 1 and cpu. First, it's 45 C (stock cooling) then when running call of duty 4, the temp goes up to 55, then 1 sec later goes to 45, then 50, then 48. I think it's a speedfan bug or something, because i dont thing temps change by 10 C in 2 seconds. Sorry for the long post.

Specs:
Pentium Dual Core e6300 2.8ghz 1066 mhz rated fsb (wolfdale)
4GB Kingston DDR2 800mhz
Windows 7 Home premium 64 bit
Palit 250 gts 512 mb DDR3 (i know the gpu wont make a difference to this post)
ASUS P5QPL-AM
a b K Overclocking
January 1, 2010 3:53:49 PM

1. Did you enable AI overclocking?

2. Since the usage of CPU can vary a lot during games, its temperature also varies a lot. Hence, the temperature variation seems to be normal to me.
Try the following applications:
Core Temp: http://www.alcpu.com/CoreTemp/

Real Temp: http://www.techpowerup.com/realtemp/

As for your POST issue:
1) Download the datasheet here: http://www.intel.com/design/pentium_dual-core/documenta...

2) Write down the maximum(NOT absolute maximum) voltage values provided in the Electrical specification section of the datasheet just downloaded.

3) Set ALL the voltages to their MAX values.

4) In order to find the minimum stable voltage, Keep lowering the voltageS ONE at a time until you get instability again.
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January 4, 2010 6:05:47 AM

ok, I'll give that a try and give you a reply in a few days.
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January 5, 2010 5:19:24 AM

andy5174 said:
1. Did you enable AI overclocking?

2. Since the usage of CPU can vary a lot during games, its temperature also varies a lot. Hence, the temperature variation seems to be normal to me.
Try the following applications:
Core Temp: http://www.alcpu.com/CoreTemp/

Real Temp: http://www.techpowerup.com/realtemp/

As for your POST issue:
1) Download the datasheet here: http://www.intel.com/design/pentium_dual-core/documenta...

2) Write down the maximum(NOT absolute maximum) voltage values provided in the Electrical specification section of the datasheet just downloaded.

3) Set ALL the voltages to their MAX values.

4) In order to find the minimum stable voltage, Keep lowering the voltageS ONE at a time until you get instability again.


I put the AI overclocking to Manual, but i still cant change the vcore, only 1.xxxx volts and ignored option is there. And i dont understand a word of the intel thing. It's too complicated for me, too much jargon... Maybe it the processor limit?
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a b K Overclocking
January 6, 2010 4:08:50 AM

Download and try the latest BIOS.
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February 11, 2010 9:05:19 AM

HI,

I have same board,
and Intel Pentium E5400 @ 2.7 Ghz and fsb @ 800,
This equates to 200

if I set to 266 my core is 3.7 Ghz and the FSB is 1066,

this maxis the ram to 1066 from 800

The highest the board will go is 333,
This will equate to FSB 1333

The ram wont take this you cant get 1333 ddr2 ram

340
Board will not tollerate past 333

The lower the fsb on your cpu the higher you can get the core within the 200 to 333 range.

also bare in mind the ram needs to be DDR 2 1066+ to get any benefit.

Happy OCing

Chris2029
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February 14, 2010 6:23:47 AM

oh...okay, can you change the vcore voltage?

thanks
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February 14, 2010 6:24:41 AM

and what do you mean by tolerate past 333?
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!