OC'ing x2 4200 (939) right now, need some help

[supaidaaman]

ah i see the problem, im running 2 shortcuts from the same folder...

 

[kman79]

Originally posted by: dennilfloss
kman79,
I have three GB of RAM but I am stable at 2.7. The OP is the one with a problem.

Oh, well then excuse my ignorance on the matter, carry on

 

[CurseTheSky]

I have a similar build (see my signature) and I have it running extremely stable (no BSOD's or unexplained crashes in over 6 months).

I couldn't get it past 2.45GHz for a while, and I kept blaming my memory. I upped the VDIMM, loosened timings, added memory dividers, etc. I actually lost more performance than I gained for a while. I was pretty disappointed.

Finally, six months ago, I gave it another shot, with 2.6GHz being my goal from the start. This time I left the memory at a 1:1 divider, suggested timings (2.5-3-3-6), and 1T. I gave the memory a bit of extra voltage from the start, and started raising the FSB.

I ran into the same brick wall around 225-230 that I did previously. Just by chance, I upped the Vcore higher than I had before, and it started up without a problem. Seems that the processor was the problem the entire time, and I kept blaming the memory. Right now I have it running at 240FSB, 2.6GHz, and the suggested memory timings without any problems. I have the same motherboard, so I'll post my settings in just a second.

 

[CurseTheSky]

Alright, here's what I'm running at right now:

Jumper Free settings:
CPU Frequency - 240
PCI-E - 100MHz
DDR Voltage - 2.70
Chipset Voltage - 1.5
HT Voltage - 1.20
CPU Multiplier - x11
CPU Voltage - 1.425
PC Clock Synch - auto

CPU Config settings:
Hyper Transport Frequency - 5x
AMD Cool'n'Quiet - Disabled (obviously)
Memclock Index - 400MHz
Tcl - 2.5
Tras - 6T
Trcd - 3T
Trp - 3T
Trc - 16T
Trfc - 18T
Trwt - 4T
Twr - 3T
1T / 2T - 1T
S/W - Enabled
H/W - Enabled



I highly suggest building up to those settings instead of plugging them in and hoping for the best. Leave your CPU at what it is now, and go play with the memory. Try to get it to boot with the settings I have my memory set at. Oddly enough, my system used to perform horrible when I had my memory set at 1T. I left it that way for a while, and now it seems to run great. Infact, it actually gives me problems booting if it set it back to 2T.

Keep in mind that your memory is 2x1GB and mine is 2x512MB. I don't know about now, but when I bought it, the 1GB models always had worse timings. You might need to loosen your timings a bit, maybe to 3-3-3-6, or 3-4-4-8. Try going to 2.8 Vdimm if that doesn't work.

Finally, the voltage probably depends a lot on your power supply. If you can't get it to boot, try slightly higher voltage settings than I have on mine. My PSU isn't the best out there (hell, it came with the case), but you never know.

 

[supaidaaman]

my voltage is at 1.45 right now but cpuz sees it going from 1.478-1.5v Isnt that unsafe? i hear its bad to go over that 1.5 mark.

 

[dennilfloss]

ASUS mainboards tend to overvolt a bit even if you have that option disabled in bios. I have my CPU voltage set at 1.3875 in bios and speedfan/ PC Probe II read the actual voltage as 1.41-1.42.

cpuvoltages.jpg

 

[supaidaaman]

dennilfloss could you post your settings to get that high of a clock? Did you have to lower your ddr speeds?

 

[dennilfloss]

I already have posted my settings in the pics. The DDR is running at 193MHz. Not sure if settings from my A8N32-SLI-DX would translate directly to your mainboard. OK, I'll reboot, photograph them and post back here in an edit.

Edit: here are my bios screens.

 

[dennilfloss]

Also decided to show you what AI Boster says and my CPU-Z screen that shows what was mentioned earlier about the memory divider being /14.

aiboostersettings.jpg

memorydivider.jpg

Hope all these help you in the end but your CPU might be a lesser performer. Afterall, my memory is basically bottom of the line so yours should not be much of a hindrance.

 

[Boo025]

I want to give it a shot, but right now I'm bit worried it will screw up again and have to reformat. :frown:

For more info.

 

[dennilfloss]

Make an image of your operating-system partition just in case. If you screw up you can be back where you were in 5 minutes.