Hi all, this is my first post in the forums, but I've been reading the posts for a while now, and have been reading stuff here at TGH for a long time.

Anyway, I've been trying to OC my X2 4200+ with the stock heatsink and fan. I don't want to go for the max, I just want a modest OC, and so I've been aiming at 2.4-2.5Ghz (2.2 stock).

Here are my system specs:

Motherboard – Asus M2N-SLI Deluxe AM2
CPU – AMD Athlon 64 X2 4200+ AM2 2.2Ghz
RAM – Corsair XMS2 DDR2 800 2x1Gb 5.5.5.18 2T
Video Card – eVGA 7900GT KO PCI-Express 256MB
Hard Drives – 2x WD Cavier SE16 SATA 250GB in RAID 0, plus 1x WD Cavier SE16 SATA 250GB
Power Supply – FSP Epsilon FX600-GLN 600W 4x +12V@15A= 60A total

Now, I did the stupid thing, and tried for 2.4 right off the bat, instead of find the max CPU and Max memory first. Here are some settings that I tried to get it stable at:

CPU:
Voltage: 1.2v (stock)
Core Speed: 2400. MHz
Multiplier: X 10.0
Bus Speed: 240.0

RAM:
Frequency: 400MHz
CAS Latency: 5.0 clocks
Voltage: 1.9 (stock)
HT Speed: 4x
Memory Clock: DDR2 667

PCI-E:
Locked at 100 MHz

Now, I also tried it with the CPU voltage at 1.400v, and 1.425v.
I also tried it with the Memory Clock at DDR2 800, and DDR2 533.

Nothing is really stable, the most stable was the DDR2 533, I could get it to boot up, and ever restart without getting the 'long short short' memory error beeps. With the DDR2 667 I could get it to boot up, but if I tried to restart, I would get the error beeps.

If I set the CPU voltage to 1.400v or 1.425v, it doesn't even boot up.

Should I up the RAM voltage?

And another question, I keep reading about the memory divider. When I look in CPU-Z it says that the FSBRAM is CPU/6. What exactly does this mean? When I had the Memory Clock set to DDR2 533, it changed to CPU/8. How do I achive the 1:1 ratio I keep reading about?

Sorry about all my questions, but I like to learn. I've read a few guides but the memory divider still has me confused. I'd really appreciate any help at all. Thanks!

Alrighty, so after lots of messing around, I've been able to get it to not do the memory beeps. At the moment, I'm running

CPU:
Voltage: 1.375v (stock)
Core Speed: 2420. MHz
Multiplier: X 11.0
Bus Speed: 220.0

RAM:
Frequency: 403MHz
CAS Latency: 5.0 clocks
Voltage: 1.9 (stock)
HT Speed: 4x
Memory Clock: DDR2 800

PCI-E:
Locked at 100 MHz

When I use these settings, I am able to run Prime95 for about 4 hours. Temps are at 53-55C. I'm going to try upping the RAM voltage to 2.0 (1.9 stock) and see if that helps.

My computer still freezes on the POST screen if I do a restart. And it does it occasionally when I'm changing different setting in the BIOS. Any suggestions?

My X2 4200 @ 2.7 with H2o i always say if your going to overclock it does not matter how small improve the cooling first.

I had to use mem divider to get a decent overclock and up the Voltage slightly in bios i have 3 options to increase i slected the lowest option 1.44v and it works fine to go up to 2.7 i select the mid option which give me 1.57v which is fine for 2.8 never tried top option dont want to fry my chip

i have PC3200 @ set it at PC2700 in my bios to go up to 2.7ghz i set it @ PC2500 highest i have gone is 255fsb 2.8ghz dont want to go any higher

MB ECS Nforce3 939A