Help needed!!

me972 · Nov 16, 2004, 01:28 PM

hey guys

I have an asus P4P800 mobo 2.8Ghz northwood cpu and 512Mb ram dual channal
I'm able to O/C to about 220 FSB with timings of about 2.5 - 3 - 3 -6
I get a memory transfer rate of about 5.6MB

I've upgraded my CPU cooling - to watter cooling and desided to O/C the CPU with a CPU/MEM 5:4 ratio so I can get my CPU up to 3.6Ghz at 1.65V core
and have the memroy at 200Mhz so they can keep the original timings that they had with the 1:1 setup.

but the system hangs.. I've tried to loosen the timings to 3 - 4 - 4 - 8
but didn't help.

how far up can I push the CPU core voltage to maybe solve the CPU stability problem ?? or do you think its somthing else???

thanks a million

Me972

GutterPunk · Nov 17, 2004, 04:08 AM

Is your AGP lock set?

Also when ocing your 2.8 and ur ram @ 220, what is your cpu @ when your ram is @ 220

Did you try ocing 1 notch at a time, sometimes its not so great to start so high. Start at 3.2 and slowly go up, and use a stress test to check the stability.

How is the heat on your northbridge? toasty, lukewarm or cold? Sometimes an overheating northbridge will cause hangs (did on my sistem)

me972 · Nov 17, 2004, 08:19 AM

1. the AGP freq is set to the highest option - 40/80 Mhz

2. the north bridge has an 80mm fan right on top of it - and is just warm to the touch.. not burning hot... I'd say about 30- 40 deg C.

3. I've tried FSB of 240Mhz while mem is ate 197Mhz on a 5:4 setting and a Vcore at 1.675 and the system was bootable - ran at temps of 36 idel and 42 on full load with PRIME95 and ATITOOL together. - the system faild the stress test.

so I clocked it down a bit to 230FSB and the VCORE to 1.65 and the system is stable. with temps of 35 IDEL and 40 full load.

the CPU is at 3.2Ghz which is very low I think since at this FSB the mem transfer rate has gone down from 5.5MB to 4.5MB and thats a lot.

I think that If I go back to 240 - 245 Mhz FSB but use a 1.7VCORE the system will be stable and the temps willl be 37 idel to about 43 load...

is it safe to use a 1.7 VCORE??????????

can you type alll the settings for the CPU screen in yur BIOS for me??
and the settings for the memory window...
since you also have an ASUS board.....
thanks....
me972

Judas · Nov 17, 2004, 07:05 PM

check this thread out about your CPU voltage

http://www.hardwareheaven.com/overclocking-modding/16750-read-first-before-increasing-voltages.html

MiDKnYtE · Nov 17, 2004, 08:41 PM

Quote:

Originally Posted by me972

1. the AGP freq is set to the highest option - 40/80 Mhz

That's a problem right there. leave the AGP/PCI locked at 66/33. 80/40 tends to make the system much less stable. do that and try OCing again.

Nov 16, 2004, 01:28 PM	#1
me972 HardwareHeaven Senior Member Join Date: Dec 2003 Posts: 696 Rep Power: 0	Help needed!! hey guys I have an asus P4P800 mobo 2.8Ghz northwood cpu and 512Mb ram dual channal I'm able to O/C to about 220 FSB with timings of about 2.5 - 3 - 3 -6 I get a memory transfer rate of about 5.6MB I've upgraded my CPU cooling - to watter cooling and desided to O/C the CPU with a CPU/MEM 5:4 ratio so I can get my CPU up to 3.6Ghz at 1.65V core and have the memroy at 200Mhz so they can keep the original timings that they had with the 1:1 setup. but the system hangs.. I've tried to loosen the timings to 3 - 4 - 4 - 8 but didn't help. how far up can I push the CPU core voltage to maybe solve the CPU stability problem ?? or do you think its somthing else??? thanks a million Me972 __________________ Intel 2600K - ASRock Fatality1 Pro(Gen3) -16GB Ram 8-8-8-24 - M4 128GB

Nov 17, 2004, 04:08 AM	#2
GutterPunk I = Greatest Dood Join Date: Nov 2003 Location: Nebraska Posts: 5,949 Rep Power: 71	Is your AGP lock set? Also when ocing your 2.8 and ur ram @ 220, what is your cpu @ when your ram is @ 220 Did you try ocing 1 notch at a time, sometimes its not so great to start so high. Start at 3.2 and slowly go up, and use a stress test to check the stability. How is the heat on your northbridge? toasty, lukewarm or cold? Sometimes an overheating northbridge will cause hangs (did on my sistem) __________________ Rock On \m/ Thank you Mousey for the Sig! --------------- Intel Core2Duo E6660 (3.4GHZ) ~ Tuniq Tower 120 ~ Enermax Galaxy 1000W ~ Corsair Dominator @ 1090MHZ 5-5-5-15 (OCZ XTC Modded Cooler)~ EVGA 8800GTX W/ HR-03 Plus 120MM ~ Asus DVD-RW LiteScribe ~ LG DVD-RW ~ Corsair Voyager 2GB ReadyBoost Drive ~ Vantec Nexus Fan Controller ~ ThermalTake Armor 25CM fan ~ Personal Finance Blog: Dent Your Debt

Nov 17, 2004, 08:19 AM	Thread Starter #3
me972 HardwareHeaven Senior Member Join Date: Dec 2003 Posts: 696 Rep Power: 0	1. the AGP freq is set to the highest option - 40/80 Mhz 2. the north bridge has an 80mm fan right on top of it - and is just warm to the touch.. not burning hot... I'd say about 30- 40 deg C. 3. I've tried FSB of 240Mhz while mem is ate 197Mhz on a 5:4 setting and a Vcore at 1.675 and the system was bootable - ran at temps of 36 idel and 42 on full load with PRIME95 and ATITOOL together. - the system faild the stress test. so I clocked it down a bit to 230FSB and the VCORE to 1.65 and the system is stable. with temps of 35 IDEL and 40 full load. the CPU is at 3.2Ghz which is very low I think since at this FSB the mem transfer rate has gone down from 5.5MB to 4.5MB and thats a lot. I think that If I go back to 240 - 245 Mhz FSB but use a 1.7VCORE the system will be stable and the temps willl be 37 idel to about 43 load... is it safe to use a 1.7 VCORE?????????? can you type alll the settings for the CPU screen in yur BIOS for me?? and the settings for the memory window... since you also have an ASUS board..... thanks.... me972 __________________ Intel 2600K - ASRock Fatality1 Pro(Gen3) -16GB Ram 8-8-8-24 - M4 128GB