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overclocking an athlon 64x2 5400+ be

2489 Views 8 Replies 5 Participants Last post by  S1L3Nt, 
M
to you "professional" overclockers of amd systems, i have athlon 64x2 5400+ black edition. my question is this: is running prime95 a "true" test of system stability? i ran the program for two hours without a hitch, but my system just doesn't seem to run smooth--no errors, lockups, or bsod's--it just doesn't seem to run smooth... i can't explain it in any other way.

stock speed 2.8ghz
oc'd speed 3.3 ghz
so, i upped my core voltage to 1.5
upped the dram voltage to 2.0
increased the multiplier to 16.5
backed the ht link to 800mhz (leaving @ 1ghz produces bsod or random reboots)
backed the dram timing to ddr2 667 (leaving @ ddr2 800 produces bsod or random reboots)
i have good temp readings (idle 29c; however, running prime95, kept stable temp of 49c)

is there any other setting i should be giving consideration to or that i'm missing althogeter?

thanks in advance for any help, info, or advice

system specs:
asus m2a-vm motherboard / ati 690g
athlon 64x2 5400+ be
8gb pc2-6400
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XxBeNigNxX
It might seem slow,

you lowered you HT and your ram with out increasing your CPU Frequency (FSB).

Try using a lower Multi and raising your Cpu Frequency (FSB) and it should seem faster again.

For your HT, you want to keep it close to 1000 or a little above.

When you raise your CPU frequency you raise your ram speed and your HT

Just start off small, and work for a larger over clock ( and test stability after each change).

Here's a link to guide... It should Help you out


http://www.overclock.net/amd-general...ocket-am2.html
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M
actually, it doesn't seem "slower," --i can't really put my finger on it... it just seems to not run smooth--that's the only way i can explain it. as i stated, i believe that i got it at a sweet, stable spot--it just seems to not be completely right. i know i've said the same thing over again, but i can't put it into words how its acting--just not quite smooth.

thanks for your quick response and for the link to the guide.

i really appreciate it.
marv
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XxBeNigNxX
Once you get that HT and ram speed up again it will Seem Smooth
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N
get a 7750BE its cheap
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M
Quote:

Originally Posted by XxBeNigNxX View Post
Once you get that HT and ram speed up again it will Seem Smooth

i'll give it a few days where it's at


whenever i've gotten the ht link even a little too far past the 1ghz point, i run into problems. same with the ram running at 800mhz. to repeat, all appears stable: no errors in the prime95 run; no lock ups; no bsod's; no random reboots. i'll give it a few days...

thanks again

(and as far as the 7750 be--i'll pass for now. i already have 3/4 of the money i need for a new board, new ram, and a phenom 2
)
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M
i read thru the guide--twice--and i figured out where my thinking was going wrong. i assumed that by overclocking the proc by way of using the multiplier only, would increase the ht link speed too--it doesn't. the ht link speed increases as the reference clock increases. so the instability i was seeing when i would get to the high multiplier was due to me keeping the cpu at the default voltage. everything is set up and i will be running a instance of prime95 that i expect to run for at least 5 to 6 hours.
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E
Quote:

Originally Posted by mpcrsc562 View Post
to you "professional" overclockers of amd systems, i have athlon 64x2 5400+ black edition. my question is this: is running prime95 a "true" test of system stability? i ran the program for two hours without a hitch, but my system just doesn't seem to run smooth--no errors, lockups, or bsod's--it just doesn't seem to run smooth... i can't explain it in any other way.

stock speed 2.8ghz
oc'd speed 3.3 ghz
so, i upped my core voltage to 1.5
upped the dram voltage to 2.0
increased the multiplier to 16.5
backed the ht link to 800mhz (leaving @ 1ghz produces bsod or random reboots)
backed the dram timing to ddr2 667 (leaving @ ddr2 800 produces bsod or random reboots)
i have good temp readings (idle 29c; however, running prime95, kept stable temp of 49c)

is there any other setting i should be giving consideration to or that i'm missing althogeter?

thanks in advance for any help, info, or advice

system specs:
asus m2a-vm motherboard / ati 690g
athlon 64x2 5400+ be
8gb pc2-6400
that is real weird.
perhaps the mobo doesn't like feeding 1.5v?
i was running my athlon x2 5000+ (non black edition) at 3ghz 24/7 @ 1.3v, 231mhz fsb iirc, but now it won't. :/
try using a lower voltage. 1.4v should do the trick.
an unstable overclock will also cause the symptoms you're talking about.
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S
i agree with eric on this one. I have ran a few suicide runs ranging from changing multi's and fsb in the bios to simply using crystalcpuid and setfsb to change the multi and fsb in windows. When i boot with a 9x multi and 1.65 volts, windows takes FOREVER to load. lol. I assume thats wut ur feeling but not as extreme. The boot screen is a lil slow etc etc. Ur lucky u can get urs to 3.3. Nothing is stable for mine over 3.2. Probs cuz i really really need to get a new cooler. But yah, try lowering the voltage and pushing ur ram by increasing the fsb rather than ur multi. If ur motherboard allows it (unlike my piece of ****), play around with the timings.

Hope this helps and good luck,
S1L3Nt
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