overclocking results.....

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Omsck

Broken In
i have:
a64 3000+ 9*200
simmtronics 1*512 DDR400 @ 3-4-4-8
asus a8-nvm

first of all, i changed the fsb from 200 to 240.
then changed ram to run at 2.5-3-33-7.
reduced memclk from 200 to 183.
since bios doesnt allow fsb beyond 240, used clockgen & made it 266.8.
now cpu runs @ 2401 & ram @ 240.1
idle temp : cpu,mobo,pwr:36c
ran prime 95 torture test blend for 1 hr, no errors reported, no crashes...
temp: cpu:45, mobo: 39, pwr:45

so what do you think of it? should i continue these settings?or go for longer duration torture test? are these the best you can get out of stock cooling??
 
assasin

assasin

Banned
u can OC further but just keep a tab on those temps.full load temps of 50-55C after OC r acceptable.
 
darklord

darklord

Cyborg Agent
Nice OC there.You can keep the latencies loose and relax the RAM.A64 doesnt need memory bandwidth.Relaxing the RAM shud get you better clocks.

As assassin said, keep a tab on temps.Especially the chipset temps as the board you have is passively cooled.
 
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Omsck

Broken In
i reduced the memclk further .. nd inc fsb.. but the pc restarts when i cross 2655 mhz...wats the reason?? & mem doent even cross 200mhz...
& relaxing the ram means inc the values, right??
 
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ambandla

Sup' dude, Sup'
Omsck said:
i reduced the memclk further .. nd inc fsb.. but the pc restarts when i cross 2655 mhz...wats the reason?? & mem doent even cross 200mhz...
& relaxing the ram means inc the values, right??
Click to expand...

The reason is the stablility and temperatures.

A restart after a new OC profile means the CPU/RAM is unstable.

Loosen the RAM timings. If it doesn't work, reduce FSB freq.
 
assasin

assasin

Banned
ambandla said:
Enable cool 'n' quite to keep the avg. temperatures low and stablilze the CPU.
Click to expand...

enabling Cool 'n' Quiet during oc in not recommended.

if ur getting random system reboots and bsods @ 2655MHz then u may hav reached ur proccy's upperlimits,or it cud be that ur psu doesnt hav enough juice.1 more thing,dont under clk ur ram too much,just keep a tab that it doesnt get oc'd too much.
 
A

ambandla

Sup' dude, Sup'
I have Athlon 64 3000+ Venice on a gigabyte mobo.

Here are the timings:

freq: 270
CAS# latency (Tcl) : 2.5
Min RAS# active time (Tras) : 7T
RAS# to CAS# delay(Trcd) : 3T
Row preharge Time (Trp): 3T
Row to Row Delay (Trrd) : 3T
DRAM Timing: 1T

mem freq: 133MHz
 
darklord

darklord

Cyborg Agent
The reason for the random boots it instability and no the CPU limit hasnt been reached.Its mostly because of insufficient Vcore.Upping the voltage shud get stability.
Most of the venice easily clock 2.7GHz :)
 
john_the_ultimate

john_the_ultimate

No pain....No gain
darklord is right.............I had my A64 3000+ (939) venice running @ 2.7Ghz with stock coling. Currently having X2 3800+ @ 2.6GHz with Arctic Freezer 64 PRO :wink: But stability is the first priority and also sometimes one cpu may o'c higher than other cpu, both having same specs. Quality of other components also important for o'cing (like PSU, RAM etc).
 
GeekyBoy

GeekyBoy

In the zone
Omsck said:
i have:
a64 3000+ 9*200
simmtronics 1*512 DDR400 @ 3-4-4-8
asus a8-nvm

first of all, i changed the fsb from 200 to 240.
then changed ram to run at 2.5-3-33-7.
reduced memclk from 200 to 183.
since bios doesnt allow fsb beyond 240, used clockgen & made it 266.8.
now cpu runs @ 2401 & ram @ 240.1
idle temp : cpu,mobo,pwr:36c
ran prime 95 torture test blend for 1 hr, no errors reported, no crashes...
temp: cpu:45, mobo: 39, pwr:45

so what do you think of it? should i continue these settings?or go for longer duration torture test? are these the best you can get out of stock cooling??
Click to expand...

Dude, my system is fully similar to you except that I have 512 MB ZION RAM.
I overclocked my pc too. I went to the BIOS and reduced memclock to 183 and increased FSB to 240. The CPU speed shown is 2.17 GHz.Will my pc run stable under this overclocking(I have stock cooler) ?

Can I further overclock my cpu? How can I use clockgen to do that ?
 
assasin

assasin

Banned
^^^ why do u wanna use clkgen when u can oc thru bios??
ur other q will be solved if u carefully read thru the thread.
 
OP
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Omsck

Broken In
asus a8 nvm doesnt allow inc fsb beyond 240 thru bios.....so no choice but to use clockgen.....i also cant find any option to inc vcore...
 
darklord

darklord

Cyborg Agent
Omsck said:
asus a8 nvm doesnt allow inc fsb beyond 240 thru bios.....so no choice but to use clockgen.....i also cant find any option to inc vcore...
Click to expand...
If there is no option to bump the vcore then i am afraid you are stuck at this point. :(
 
GeekyBoy

GeekyBoy

In the zone
I mean, in the clockgen website, it does not show my motherboard name. Which one shud I download ? And what are the steps to use it ?

Using Crystal CPUID, which voltage should I set it at for good overclocking?
How can i o/c to 2.4 Ghz ?
 
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