trying to OC my mem on a ASUS M3A78-EMH

[cincyrob]

MB Brand : Asus
MB Model : M3A78-EMH HDMI

well its not mine but a friends he is trying to OC his mem he has ddr2 800 crucial ballistix. he wants to know how/where in the bios to OC his mem? ive never had a AMD rig so i cant really tell him

this is his setup

CPU Arch : 1 CPU - 4 Cores - 4 Threads
CPU PSN : AMD Phenom 9550 Quad-Core Processor
CPU EXT : MMX(+) 3DNow!(+) SSE SSE2 SSE3 SSE4A x86-64
CPUID : F.2.3 / Extended : 10.2
CPU Cache : L1 : 4 x 64 / 4 x 64 KB - L2 : 4 x 512 KB
CPU Cache : L3 : 2048 KB
Core : Agena (65 nm) / Stepping : DR-B3
Freq : 2200.97 MHz (200.09 * 11)
MB Brand : Asus
MB Model : M3A78-EMH HDMI
NB : AMD 780G rev 00
SB : ATI SB700 rev 00
GPU Type : GeForce 9800 GT
DirectX Version : 10.0
RAM : 8192 MB DDR2 Dual Channel
RAM Speed : 400.2 MHz (1:2) @ 6-6-6-18
Slot 1 : 2048MB (PC2-6400)
Slot 1 Manufacturer : Crucial Technology
Slot 2 : 2048MB (PC2-6400)
Slot 2 Manufacturer : Crucial Technology
Slot 3 : 2048MB (PC2-6400)
Slot 3 Manufacturer : Crucial Technology
Slot 4 : 2048MB (PC2-6400)
Slot 4 Manufacturer : Crucial Technology

 

[QuietIce]

to OCF!


Man! It's no wonder you guys are having trouble finding it! I'm AM familiar with AMD and ASUS and this thing is buried. I'd never look there first but I'd find it - I guess not everyone likes exploring as much as I do.

Advanced/Chipset/Northbridge/DRAM Timing

To OC the CPU you'll need to use the clock (don't know why anyone would want to OC just the RAM???). A lot of people have gotten those chips up to the 2600+ MHz range (240x11), though YRMV. Chances are the RAM timings will need to be loosened when the clock is that high. And watch the CPU temps very closely (I like using CoreTemp). IDK what heat sink he's using but some of the Phenom I's can put out some heat - others are easy on it. Top temp on these are 60°C so if you start seeing that "6" in the temp back off! But I doubt you'll get that hot unless you're on the stock cooler. As temps go up the possible overclock generally goes down.

High-end vCore is 1.45v and you may need to adjust the NB speed and/or voltage as well. This thread will get you started but it's written for the K8, not the K10, so it doesn't address the NB at all.
http://www.ocforums.com/showthread.php?t=555058


BTW: You can download the manual on the ASUS website. That's one thing about ASUS I like - they don't hide data from you, most of it is on the Net ...