I'm planning to overclock it with stockcooling but i never done any OCs before so I'm little nervous. I tried to google for a guide on this but found none so far, i hit Sempron and others mainly .

Sorry, i forgot to mention my system spec:

AMD64 AM2 3500+ (Orleans)
1G DD2 553mhz (PNY)
80gig wd
Asus en7300le top 512mb turbocache

And that's about it really!

I had a socket 939 3500+ (winchester core). It was rubbish for overclocking I'm afraid, so I bought an opteron 165 instead which is ace.

Doesn't mean you shouldn't try though, you may have better luck than me. This is a good guide that will help:

http://www.neoseeker.com/Articles/ [...] 64ochowto/

You must reduce your HT multiplier and put in a RAM divider before trying to overclock, or else you won't know if the wall you hit is down to the HT Bus / RAM or the CPU itself.

Good luck

Thanks a lot for reply. I did read several tutorial about OC A64 (not the one you gave me but i will read it)

I will try it today and keep you posted, off course!

P.S: My MB is a ECS NFORCE4M-A (V3.0)

Well, as promised on above post, i here by describing my first OC process. I reduced the HT Multiplier down to 3x and change RAM clockspeed down to 200mhz but i'm still confused about ram divider as ram for AM2 is DDR2(200, 233, 333 and 400). So off i went changing the HT Frequency from 200 upto 230 and 225 at this Freq prime95 crashed and complained hardware error rounding was 0.5 expected below 0.4. I managed to get the comp stable about 220mhz but didn't go like 221,222...224. And the temp was about 41C. So what should i do now? I can't change the VDIMM since my motherboard doesn't offer this feature so i guess there is nothing i can do about this. However i can change CPU voltage!

One more thing, should i decrese the CPU multiplier (1x-11x) from the start?

HT multi sounds good, RAM divider sounds good (probably can up it later). Have you tried upping your CPU voltage any? You might need to add a little. Try adding .1 to it and see what happens. Don't want to go much over .1 though.

Thanks GlacierFreeze for reply. That is exactly what i did last night or morning ( i was up until 2am 8O to run prime95 test and it was okay!). Now im at HT Freg of 225 with increasing voltage from bios from 1.23 -> 1.250 -> 1.270 (1.30 is the maximum). It was like magic!!!

I set everything manually including CPU multiplier (x11), HT multiplier (x3), Ram Clock (200mhz) and disable that K8 Cool&Quiet as well .

I ran CPU-Z and it displayed CPU voltage of 1.265!? so i don't know what happening there!

Lastly, let me sum up:

Core speed: 2475 Mhz
Multiplier: x11
Bus Speed: 225 Mhz
HT Link: 225*3=675 Mhz

I plan to runs some intensive prime95 and super-pi today to test for stability and after that i will increse the HT Multiplier to x4 (if everything is still fine! )

Any suggestions are welcome!

Uping the HT multiplier to 4x should not decreasethe stability at all as long as the bus x the HT multi is below 1000 you will be fine. Also if you proc is using less voltage then you can feed is and its temp isnt to hot you should try increasing it more, and more and more oh and just make sure your ram can take it

How can i be sure?

Im wondering lowering the Ram speed from 233Mhz to 200Mhz effect the overall performance?

Thanks for replay

How can i be sure?

Im wondering lowering the Ram speed from 233Mhz to 200Mhz effect the overall performance?

Thanks for replay

Whatever your default in BIOS is, just go lower one step at a time, then run one of those programs for a while to test stability. If it crashes (even after a couple hours), you could raise the timing numbers a tad or even set the divider down lower to another step then test more.

Good luck. Sounds like you have the hang of it now. Easier than you first thought huh? lol

Lmao! yes, i do think i got the hang of it now. Thanks to some of tutorials i have read lol and you guys for feedbacks. And it's pretty fun too but time consuming

Orleans CPU`s are pretty nice for OC`ing as they run on low temperatures.
I have 3500+, same as yours, also stock cooling and so far I have OCed it till 2560 Mhz without too much effort.

Kool!!! Can you tell me what brand of Motherboard is yours? (if you dont' mind)

Gigabyte GA-M55S-S3, pretty nice mobo for a budget PC (~80$)

Nice man! Beat my Motherboard, lol! 8O

Your power supply isn't perfect; there will be a little deviation, especially when you get to budget power supplies. Just make sure you're around the voltage range you want and the temperature stays below 50c (especially if you're running 24/7).

Thanks for replying to my particular question. I got a 400w psu from jeantech. I do indeed try to keep the temp below 50C and i won't never be able to run the comp 24/7 since the "elders" would complain!

Sorry for bringing up the old thread. Just want to update it a little.
Well, i bumped up my my Vid (Vcore) to maximum 1.30 and manage to get up to 2530 mhz. . Run prime95 torture test for 6.59 mins without any problem.

Core speed: 2530 Mhz
Multiplier: x11
Bus Speed: 230 Mhz
HT Link: 230*3=690 Mhz

When i tried to increase the bus speed to 232, got back to windoze and ran prime95 torture test for 9 mins and it gave me fatal error ... 0.5>0.4. As i read from another thread, this error is likely caused by memory. But i don't have option to increase Ram voltage in my motherboard so i don't know what else i can do here?

Any suggestions/commands are welcome!

Cheers!

Your HT speed may be too low if it makes sense. The HT link is sensitive to deviation from 1ghz, both above and below. Try setting it at 4x again and give it a go. That will bring you just under the default 1ghz. As for what cpu-z is displaying, it is normal. What you set in the BIOS and what the actual vcore is nearly always differ, as the sensors that the BIOS (and cpu-z) reads are inaccurate to different degrees on each individual board.

EDIT: Once I get a new psu I'll be OCing my 3700 sandiego , hopefully to 2.7+

Wicked! Thanks for your reply!
At least i get some input. I will try to increase HT to 4 again and *shoot*!

I heard that changing ram latency can help a little in my situation, is this true? . I found out my motherboard got hidden ram features by pressing Ctrl+F1 in BIOS!

3700 Sandiego!!! Nice man . i'm so tempting to get a X2 AMD since the price is hitting so low.

lol, i couldn't shoot very far! Uppered the HT to 4, got back to windoze and ran prime95 for 13 mins and same error. Well, 8 more minutes trade off, lol.

Well, i think i have bit the bottom of this cpu.