Getting nowhere overclocking my x2 3800

After some semi-extensive googling, I'm thinking that the stepping (LDBFE 0623 XPMW) of my chip ain't so great :( Even so, I should be able to get a lot further than I'm getting!
 
I got my X2 3800+ when they were first launched, and the max overclock I can get is 2.5 on 1.5V, which is the max vcore setting. I could get it to 2.55 on my last motherboard, but that was on 1.6V.
 
Thanks to everyone for their help, this nut is cracked! Turns out it was RAM timings after all :p Dropped them down to 2-3-3-6 and have got 240 x 10 = 2.4GHz @ stock volts :D Idle temp is only 1 degree higher too! I'm gonna start priming to check for stability and then see how high I can go.
 
Very good, hopefully you'll get a bit more out of it. :D

I leave my timings set to auto, and for some reason when i started clocking my CPU the timings tightened slightly too. :D
 
I've got 2 instances of prime running and have set it so that 1 core is used for each, which is what I think you're supposed to do. However, 1 seems to be stuck on the first test whilst the 2nd is already on the third. When I stop the first one, it does it straight away whereas the second takes a while to stop?
 
Perfectly normal. 1 core can work better / cooler than the other. e.g. my x2 has one core run 5c cooler than the other.
 
Damn, I knew something else would go wrong! Basically, I can't get 2.4GHz from a cold boot. I can get in to windows ok with 230 x 10 and then I restart, go into the bios & change the fsb 240 and it's fine, boots no problem :confused: 2.4GHz seems stable enough when running apps though, primed each core for an hour and then played BF2 for 2 hours last nite anyway. Help!

EDIT: won't cold boot @ 230 x 10 either. If I go into the bios, change nothing & then save and exit, it boots fine. Weird.
 
Last edited:
Thanks for the input people :rolleyes: For anyone that's interested, I fixed the cold boot issue by changing the RAM voltage to 2.7v from auto. Now @ 2.5GHz on stock volts, 8.5 hours prime stable.
 
Trial and error is your friend I guess. Sorry for the sarcasm, I just thought I'd get a better response seeing as a lot of ppl from these forums had the chip I have before going to the dark side :p Wish I could go conroe...
 
Ok bump. I know this chip can do at least 2.8GHz, settings were 280 x 10, RAM @ 233MHz 2.5-3-3-6 but this wasn't stable and to be honest, I didn't want to slacken the timings anymore.

So I've lowered the divider to 133 and am now running 300 x 9, 1.4v vcore, RAM @ 193 MHz, 2-3-3-6 but if I try and increase the FSB to 305, the PC won't boot. I've tried upping the vcore to 1.5v and I've also upped the board and HTT voltages by 0.1v (tried various combinations of this) but I get nothing. Any ideas where I'm going wrong?

Here's a screenie of where I am now http://img296.imageshack.us/img296/494/27ghzjp3.jpg
 
If you havent done so already - up your chipset and LDT voltages to max. If that doesn't work up your CPU volts a tad. Make sure temps are low. If all this fails...buy a new mobo or be happy with what you have. :)
 
Back
Top Bottom