Hellow there all !
I am pretty new to all the overclocking but i learned a great deal over the past few days and i owe it all to Clunck for the biggest part
So a huge thanx is in order i suppose. I tried posting a 5€ bill here on your name but i couldn't find your bankaccount number so maybe another time
Anyways i had some question for all you readers here on this busy forum.
I have the following setup
E6600
P5K Basic with Bios 603 installed from asus site ( autoupdate doesn't show this version )
Avoid using the auto update thing, it can kill your board.
EN8800GTS 640MB
Corsair TWINX 55512 DDR2 800Mhz 2024GB
Sonata III Case
Antec Earthwats 500W ( 2 rails of 17ampere 12volts )
The following thing happened.
I followed this guide to the letter except for 1 thing i don't know about ( Clunck read private message concerning the FSB - Strap to Northbridge setting )
Dont worry about the strap setting for now, leave it as it is.
At 3000Mhz i have a stable setup 333 FSB and memory at 667Mhz with both the vcore and MemV on AUTO settings ( idea here is to obtain my 400FSB clock and then search for ideal vcore starting from the vcore shown in CPU-Z )
400x9 is quite an unrealistic goal for 24/7 usage. You may be lucky and have a CPU that doesnt need much voltage to do 3.6Ghz, but it isnt very common. I have set the Latencie for the Memory as indicated tough. Just not very comfortable with setting the voltage of the memory since i can't get a reading of it anywhere. It should work at 1.9v but if i put it manually to 1.9 the system is unstable at 3Ghz.
Are you sure that it should be 1.9v?, you need to double check, either on the sticks of RAM themselves, or on the manufacturers website.
Note: Coretemp shows 48 degrees as max for 3000Mhz setup on both cores and goes back to 45 after a few seconds -
Temps are ok.
Anyways i decide to try 3200Mhz setup and go to 350FSB. Ram is at 700 Mhz. System boots and i start testing with orthos. Not even a minute in the test the system reboots. So i decide to wait for reboot but he doesn't get to windows before he reboots again. Then just before loading windows he reboots again so i go to bios to put back the old settings.
This could be a lot of things, but it sounds like you are running the RAM too high - please post some bios shots of all your settings.
So i have 3 questions : Is the reboot that i describe here to be blamed on my 500W PSU ? -
Possibly, but check the RAM first.
After some research i had the feeling 2 rails of 17A for 12Volt is very low when trying to overclock. Also 500W all in all might be a bit low for this system but not sure.
The PSU specs are fine, it just depends if the PSU itself is flakey or not.
If not what else could it be ? I followed the guide every step of the way with exception of setting my Vcore and Memory voltage manually. -
You absolutely need to set the ram voltage to what the manufacturer says it should run at. The board will set it to 1.8v by default.
Second question is something i noticed with CPU-Z
Stock settings Idle : Vcore 1.30
Stock settings Full Load : Vcore 1.28
Never use cpuz to check CPU voltages.
3000Mhz Settings Idle: Vcore 1.40
3000Mhz Settings Full Load : Vcore 1.36 -
This is vdroop, enable the voltage damper in the bios (if your board has one, which im not sure if it does or not).
3200 Settings Idle : Vcore 1.42
3200 Settings Full laod : Vcore 1.38 --> 1.34 Reboot described above
Question here is if the drop in Vcore is normal ( caused by the function CPU Voltage Demper to enabled ?
See above, enable it if you have it) or if it's because my powersupply just gives less when it's getting stressed ?
Also what voltage should i use when i take manual voltages in the bios if this drop is normal ?
Use Asus probe to check the voltages, or if you really want to do it properly, use a DMM. If you google it, you will be able to find the correct points to test at.
Question 3:
Memory basic voltage is 1.9 according to site
When leaving it on auto my 3000Mhz systems is stable but when setting it manually on 1.90 it gives me a blue screen when running orthos ( i read this is caused by lack of power and the memory changes stuff that it shouldn't resulting in the BSOD ) but if i get it right for my 800Mhz memory i should not up the voltage untill go over 400 FSB right ? I did set the timings manually for 5-5-5-12. So i don't really know if i should get higher manual voltage and to what voltage i'm allowed to go. The infinity cooler is pretty big and hangs directly over the first memory bank of my computer so the cooler almost touches one of the memory sticks. So not sure if it has optimal cooling to up the voltage.
The XMS2 memory has passive cooling on it tough. So to what voltage should i be allowed to go with my memory ?
The bottom line here, is that you need to get your system at least 12 hours stable with orthos at STOCK SPEEDS BEFORE you start overclocking. Put it all back to stock, and get it stable first.
Anyways hope some1 can help me out here because i really want to get my system at 3600 Mhz
Greetz and thanks in advance.
Daveke