A64 3500+ Overclock

Originally posted by xirokx
Goody is yours stable at 2.5ghz?
what psu and ram do u have tzu??? whats your cpu temp at 2530mhz?
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Hi mate, sorry for the delay in replying only just read your posts

glad uv got it all sorted now!

Mine runs stable at 2.53ghz (230*11 @ 1.6v) and also im just using the standard heatsink and fan with four case fans!

I have an enermax noisetaker 485w psu and 1gb Geil Ultra pc4000 ram.

The cpu does run quite high temps when under load, late 50s normally, but then they are the 130nm chips so they run hotter anyway even when not overclocked.

Why cant you get yours running at 2.5? What kind of errors do you get or is it just not stable?
 
I ran prime for 9 hrs at 220 * 11 on 1.6 worked fine, no failures...

So this morning I tried 230 * 11 on 1.6v and primed failed instantly.....

Atm I am trying 225 * 11 on 1.6 but have increased DDR voltage to 2.8 will let you know how I get on with that.....

During all these tests my mem was on a 5/3 ddr333 divider.....

I am slowly running out of ideas if the 225 test fails....

any ideas mate?
 
Im unsure why I cant get it up to a 2.5ghz could be any of these reasons:

1) my mobo which is an asus a8v deluxe
2) my ram which is 4 x 256 sticks
3) my PSU which is 350w

I only have a HSF and no extra fans I cant see that making a difference however not quiet sure?...

I fail prime torture test a minute into running it when I try setting it to 230 * 11 at 1.6 have even tried 1.625........the system doesnt display any errors at all just priming it fails..........

Have you primed yours at 2.5ghz? if yes for how long? which test?
 
not if your using a ram divider... i had a problem with prime where it failed instantly and that was when my ram went to 240mhz! but then i took it back down to 230mhz and it was alright!

What prime test are you running when it fails?

I think you'd be best to run a small fft test first to take ram out of the equation and then if it still fails then its a cpu failure, if it doesnt fail and runs ok then try to run the large fft and see what happens then?

also what spped is your ram running at with the divider?
 
my ram is running at 176.8mhz on 5/3 divider.....i havent tried any tests with RAM running at normal speed of 200mhz without a divider...I always thought you had to slow down the RAM so that the CPU speed increases and is stable?

I always run the large fft test in prime...
 
run your ram at its default speed of 200mhz and then see what hapens?

there is no need to slow your ram down to get stability like you said, you just have to use a divider to stop it from going over its max memclock, probably 200mhz for pc3200? i.e. if your using a 230fsb then use a divider so that your ram runs at 200mhz instead of 230mhz as it would running it at 1:1,

hope that helps, then see what happens when u prime it!

let me know
 
currently got it at 225 x 11 on 1.625vcore and 2.7 ddr voltage....

cpu temps at load is 58C

Currently running large fft test and so far its passing the tests its been going for 30mins so far :-) .........this is all a mem divider of 5/3 ddr 333

I am sure I can get it to 2.5ghz if I play about with it but temps will be in late 50's early 60's....

I will try 230 x 11 at 1.625 @ 2.7 ddr volts without a mem divider, will report back asap :-)

Nice one goody :-)

What are your RAM settings goody? are they 1:1 or are using a divider?
 
I just set the max memclock settings to ddr400 in the bios

i have left the ram voltage to auto and the cpu voltage is 1.6

because i am using 230*11 the ram runs @ 230mhz, because i am using 1:1.

like i said my ram didnt like going above 230 but that not a problem as im using 230*11 :D

i reckon u'l be alright using a divider to keep your ram at 200
 
forgot to mention currently running large fft test in prime and no errors so far, been running for bout 30 mins, and my temps hover at 56/57!

i reckon u'l be ok running the voltage at 1.6v and then the temps should be about the same as mine and not touch the 60 mark!
 
sorry all this time i have been running small ffts not large ffts on prime .........sorry for the mis info lol

what would my max mem settings be if i have 4 x 256mb sticks?

It failed on small ffts - 230 x 11 at 1.625 @ 2.8 ddr volts with mem at 1:1 ddr200....hmmmmm

Any ideas?
 
what speed is your ram? if its pc3200 then your max memclock should be ok at ddr400, if not then use ddr333.

also if you were to use ddr333 then you could try using 250*10 so that it would speed up your ram but keep the cpu clock speed the same at 2.5ghz.

Also what have you got your htt multiplier set to? you have to make sure that stays under 1000?

Firstly though i think you should try small fft test using 230*11 @ 1.6v and see what happens then. this test doesnt use much ram therefore will test just the cpu stability!
 
230 * 11 @ 1.6v on ddr333 fails instantly on small ffts

htt = 800mhz for all my tests....

my ram is pc3200.....4 sticks x 256mb all are pc3200....

latest test just failed:

230 * 11 @ 1.625 and DDR 2.8, mem was set to ddr400 for this....

will try your 250 * 10 scenario now
 
250 * 10 failed...didnt get me into windows....

230 x 11 @1.65 and 2.8v DDR failed also....

I think the best I will get out of this is:

225 x 11 @ 1.625 2.8DDR on ddr333...... so its 2475mhz from an original 2200mhz

slightly under your 2.5ghz but hey I learnt something....thanks :-)
 
o well mate, 2475 is still a good overclock from the standard 2200!

u'v got to remember there newcastle cores aswel so that makes them less overclockable, plus it could be anything stopping you getting 2.5 such as mobo, psu etc.

have you run any benchmarks? like prime benchmark or super pi?
 
nope havent run any benchmarks at all......will look into doing that as I have never done that before....

As I am new to overclocking I just prime it after I change anything to test the stability....

Prime has been running for an hour now on 2475......no comebacks yet :-)
 
nice one then thats alright then.

when you have finished testing it you can run a benchmark in prime - Options... Benchmark... and it will save the results in the results.txt file in the prime95 folder.

And if you google "super pi" and download it (not a very large program) then we can compare results... i cant see there being much difference between mine and yours :)
 
kewl cheers matey will do.....

how long do I run superpi for? any specific settings?

P.S. I think I am restricted due to PSU and cuz I only have 1 fan (the hsf arctic pro 64 cooler) what do you think?? any other opinions?
 
Running my winchester at 10 x 250 ht 4 and 166 divider. Going to try for 2640 tomorrow with ram at 199 and up juice a little bit
 
hey, your psu could be the source of your troubles but then it could easily be something else?!

you could try slowly stepping up the cpu freq. slowly i.e. 1 each time and see if its stable, then you might be able to get a bit more out of it.

iv stepped mine up to 235*11 now got it running at around 2588mhz and seems stable so far :D

if u run the super pi 1mb test and see what you get, doesn't take long, i get 36s at 2.5ghz
 
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