Overclocking Asrock 939dual SATA2

[Sandan]

I can't get my bios to keep the setting 11X2200 when I attemp to overclock. I turned off cool & quite and set Pci and CPU to Asynch. My bios is 1.50. It has been a long time since I tried overclocking any CPU. Last one was AMD 1.4G on a board where I had to set the jumpers. So, I been out of it for a while. I looked all over the internet but haven't seen anything specific to my problem. Any suggestions.
System is: AMD 64 x2 3800+
Asrock 939 dual SATA 2 bios 1.50
2 gigs Pc3200 Gskill RAM
250g SATA2 hard drive

 

[BlueWeasel]

The highest multiplier on the 3800+ is 10x and 11x isn't available.

 

[Sandan]

OK...Then I am confused. If I want to OC my CPU to 2.4 should I change the CPU frequency from 2000 to 2400? I thought the multiplier was the way to bump the CPU up.

 

[BlueWeasel]

Leave the multiplier at 10x and bump up the FSB/HTT to 240. Make sure that your HTT frequency is at 4x or lower. With that board and X2, you should be able to hit 2.4 (240x10) easy.

 

[Sandan]

Thanks blueWeasel...That is the information I was looking for. Also, I have a stock CPU fan on my system. I remember hearing people getting 2.4 on stock cooling. Do you think that would be a problem. If I look to go any higher I surley would go out and get an Artic Cooler or something else. And am I right to set Pci and Cpu to asynch and disable cool & quiet? Thanks for your help....

 

[BlueWeasel]

Here are the general settings I'd recommend if you are trying to get 240x10. Also, if you are running at 240 HTT, then set your memory divider to 166 (forces the RAM to run at exactly PC3200 speeds).

Overclock mode CPU, PCIE Async
PCIE Frequency 100
Boot Failure Guard Enabled
Spread Spectrum Auto
Cool n Quiet Disabled
Dual Core Support Enabled

Processor Max Multiplier x10
Processor Max Voltage 1.35-1.40v (with the stock cooler, I'd try to keep it at 1.40v or lower)
Multiplier/Volt change Manual
Processor Multiplier x10
Processor Voltage 1.400v

CPU-NB Link Speed 600 (ie, 3x)
CPU-NB Link width 16
NB-SB Link Speed 600 (ie, 3x)
NB-SB Link Width 16
HTTtoPCIBridgeDecodeScheme Subtractive
DRAM Voltage Auto

Since you've got the stock cooler, I'd keep the CPU voltage at 1.40v or lower. Most 3800+ overclock well with little or just a slight bump in voltage, so you've got a great chance to hit 2.4Ghz.

Be sure and read this ASRock thread over at EOC

 

[Sandan]

BlueWeasel Your the best. Thanks so much for this help

 

[f4phantom2500]

If you have any more problems and you can donate the time to it, I suggest you read this:

http://www.short-media.com/articles/overclocking_on_754939_platform

 

[Sandan]

Fantastic....I used Blue Weasel's recommendations and am running at 2.4 with stock cooler. f4Phantom thanks for the link which I appreciate and will study. Now to play some games and make sure everything is cool.....