X2 3800+ AM2 overclocking. What am I doing wrong?

[Pokerphase]

I've tried to overclock my X2 3800+ on the following rig

Huntkey 450 Watt PSU
X2 3800+ @ 2.2Ghz (sucks)
Asus M2N-SLI Deluxe MOBO
Twinmos DDR2-667 @ DDR2-880
Single Geforce 7900gt 512 MB
250 GB Maxtor Diamondmax 10 HD
Creative Audigy 2 ZS Soundcard

The problem I won't get any further that 220. I've put my voltage on 1.4, memory voltage on 2.10 on lowest possible (DDR2-533). Memory timings are all auto and Hypertransport on 4x. I have the PCIE-clock locked at 100MHz. What am I forgetting or is this the limit? :? Could it be my PSU?

 

[tekzor]

u need to explain what ur seeing when u push its above 2.2ghz. it could be ur memory timings, more voltage, HTT

 

[sjps220]

sounds like memory to me. Are you using a divider?

 

[Pokerphase]

I think I am, I can't control the divider can I? Everest says 2400/6 = 400Mhz which is DDR2-800. That's with the current overclock (10*240). The memory is on 2.10v now, should i higher that to something like 2.2 or even higher? It has run stable on DDR2-880 at 2.15v so i don't see the problem:?

 

[Pokerphase]

I say in the bios: Save And Exit. Then it reboots, but doesn't start the boot procedure. All fans keep running but no beep or bios screen, my monitor goes into standby mode. Then when i press the reset button it says the POST check was interrupted and it loads default setting unless I enter the BIOS again. Then it boots again. Complicated.

 

[Raeven_Zero]

Is that the highest your CPU voltage will go? I am running 1.525 to stay stable at 2.4 so I would run about 1.45 or more for 2.2, but I like overkill as long as it's not too hot.

 

[Pokerphase]

My max CPU Voltage is 1.5625 or something. I can add a 100mV offset to that.

 

[guruboy]

It really sounds to me like it's your RAM, and the fact that it's just too slow. OCing past 2.2 should certainly not be that hard.

 

[Raeven_Zero]

It says you have DDR2-667 and that you have it at DDR2-880, that's already 107 Mhz over stock. When you set it at DDR2-533, what is it running at after you overclock? I would try to keep it's final speed under 380Mhz with stock timings, even more relaxed if you want tighter timings.

 

[Raeven_Zero]

Can you also provide us with the actual HT speed+voltage and the CPU multiplyer that you are using?

 

[Pokerphase]

Ok, I've managed to overclock it to 2.4Ghz now with a 10*240 multiplier. Voltages: 1.3750 on CPU and 2.15 on RAM. Its running at DDR2-800 (says everest when I benchmark ) and I have the HTT muliplier at 4x. Its perfectly stable when I run 2 instances of Prime95. It seems the problem was the voltage of the RAM? 0.05V raise is sufficient or is it safer to put it even higher?

 

[tekzor]

Ok, I've managed to overclock it to 2.4Ghz now with a 10*240 multiplier. Voltages: 1.3750 on CPU and 2.15 on RAM. Its running at DDR2-800 (says everest when I benchmark ) and I have the HTT muliplier at 4x. Its perfectly stable when I run 2 instances of Prime95. It seems the problem was the voltage of the RAM? 0.05V raise is sufficient or is it safer to put it even higher?

if it can take the heat, then yes. HF!!!!!

 

[AMDKnightmare]

I know this might be a reply to a slightly old topic... Also I'm new to your forum. I recently bought an AM2 3800 X2, ASUS M2N32-SLI Deluxe, Corsair DDR2-800 6400 Cas4. With stock cooling I was able to get this thing up to 2630 Mhz on CPU at 263x10 with DDR2 running 1/1 2T at 1052 MHZ 4-4-4-12 (Not recommended unless you have some great RAM!) The memory really helps get this thing up to higher speeds. I would recommend some good DDR800. Also invest in a aftermarkedt HSF. I ordered a Zalman 9500. Hoping to hit 2.8-2.9Ghz with it at higher VCore and different multiplyers and dividers. Would love to see if you've made any OC improvements on your own system lately. As the 3800X2 has much more potential. Good luck to ya!