AMD 64 3200+ venice 2.4 GHZ OVERCLOCK.

[SuperFly03]

I have a Venice core I've taxed to the max. Right now its at 245*11 = 2695 and it is rock solid. I had to start a month ago at 2600 @ 1.525 Volts to be stable and I slowly increase it over time. I have Folding@Home running in background so that im at 100% load 24/7. The basic bios settings are 245*11 on FSB*Mutli, HTT is 245*4, and Ram in on 1:1. My ram is Mushkin Redline DDR500 2Gb (1Gbx2) on 2t timings. I couldn't get 1T stable.

I should also mention my rig is water cooled. The pump cools the two 7800GTX's in Sli then my proc next and I still cant get the proc above 100 F under load lol.

There is an Excellent overclocking guide on DFI-street.com Use search parameters "Definitive AMD overclocking guide". Its a long thread but very very helpful to noobs and intel converts (me 😛).

OC'ing my system successfully took all day and the tweaks happen weekly. You have to have a good cooling system, whether it be HSF or WC, stock just won't do if you want the most out of your processor.

My advice is be patient and dont increase voltage until you have to and monitor your temps like a hawk. You've voided your warranty by OC'ing (obviously) so we wouldn't want you to burn your proc up and have to pay for another one.

Edit: For clarification, my voltage now is at 1.532. After upping to beyond 1.625 I got very little extra headroom from the insane voltage so i backed it off to 1.532 which is where I hold it at now.

 

[benjamin]

and what if its lower than 1000htt assuming around 800~900? does it affects overall performance and stability? anyone? :roll:

Lower the HT multiplier further. Running HT under spec seems to make little difference, the gains in performance resulting from the higher CPU clock are orders of magnitude higher.

 

[nitto1320i]

thanks for the tips guys... so your saying that i can run @ 900~980HTT without noticing any loss in performance? my ram is CORSAIR TWINX2048-4000PT XMS 2GB (2 x 1GB) DDR500 can up it till 290fsb and my cooling is quite adequate.. 😀 @ 2.5ghz my idle is @ 34~38c and load 41~44c.

 

[benjamin]

thanks for the tips guys... so your saying that i can run @ 900~980HTT without noticing any loss in performance?

Nothing noticeable. I used (much) lower HT speeds in trying to sidestep the Neo4-F 219 bug... it only made a major difference if you go to extremes, like using a 1x HT 'multiplier' 😉

 

[SuperFly03]

thanks for the tips guys... so your saying that i can run @ 900~980HTT without noticing any loss in performance? my ram is CORSAIR TWINX2048-4000PT XMS 2GB (2 x 1GB) DDR500 can up it till 290fsb and my cooling is quite adequate.. 😀 @ 2.5ghz my idle is @ 34~38c and load 41~44c.

The best analogy i've heard about the HTT is that it is like having a 12 lane freeway with only 8 cars on it, each in their own lane. Opening more lanes (overclocking) will not improve performance because each car already had its own lane.

I try and keep mine between 900-1100, it just depends on how the multiplier falls. Also, 41 isnt bad, its a tad warm but then you think about Intel CPUs running around 55-60 and then you realize AMD is pretty spiffy

 

[nitto1320i]

thank you.. i'll go try it now.

 

[WINDSHEAR]

my Prescott 3.0Ghz overclocked to 3.48Ghz runs at 47C under full load. Take the cover off, and it runs much cooler.

 

[style69]

Hye...

I ahve my amd 64 venice 3200+ oced to 2.4 Ghz. and the cooler i have is CNPS Zalman 7000BAluCU.

ON average as in idle its like 35-37 and on load climbs to 45-46 like when runnin folding@home?

That normal? for a zalman....

AND ye FOR HOW LONG DOD U RUN YOUR FOLDING@HOME BEFORE U OCED IT TO WATEVER U HAEV RIGHT NOW?

 

[style69]

Hye...

I ahve my amd 64 venice 3200+ oced to 2.4 Ghz. and the cooler i have is CNPS Zalman 7000BAluCU.

ON average as in idle its like 35-37 and on load climbs to 45-46 like when runnin folding@home?

That normal? for a zalman....

AND ye FOR HOW LONG DOD U RUN YOUR FOLDING@HOME BEFORE U OCED IT TO WATEVER U HAEV RIGHT NOW?

 

[wild9]

http://www.tomshardware.co.uk/forum/message.php?config=tomshardwareuk.inc&cat=11&post=172752&page=1&p=1&subcat=184&sondage=0&owntopic=0&new=0



Specification and stock settings:

S939 Venice 3200+
200 bus x 10 (clock-limited) = 2GHz
Model: F
Stepping: 2
Revision: DH-E6
Core Voltage: 1.40v
Cooler: Stock w/ thermal pad

RAM: 2xPC3200@DDR333 (1 stick is faulty @ PC3200)
Motherboard: Abit NF-95
PSU: No-name 400w.

I really like this CPU. I managed to go from 2.0 to 2.55GHz (1.45v Vcore) or just over, the only limiting factors being the motherboard's lack of overlocking features as well as unmatched PC3200 memory that fails at PC3200 speeds.


Methodology

Despite the rubbish memory I was able to achieve a 25%+ overclock, in a very short space of time. I used the bios, and two Windows two apps: ClockGen (to raise bus), and CrystalCPUID (to adjust Vcore and multiplier).

To get 2.5GHz using an Abit NF-95 Motherboard:

1) Make sure you disabled Cool-n-Quiet in the BIOS and in Windows.
1) Enter BIOS. Set RAM speed to PC 2100/DDR266 (you can go higher if you have better RAM).
2) Set HT Link: CPU<>NB multiplier to x4
3) Load Windows. Run CrystalCPUID, raise vCore to 1.45v and set multiplier to x9.0
4) Run ClockGen and raise bus speed in small increments to 280MHx

285MHz x 9.0 = 2.56GHz
HT = 1140MHz*
RAM = 283MHz

* Try and keep the HT speed close to 1100MHz (max) for stability.

That's it. There are quicker, easier ways to overclock this little gem and there's a good chance it'll give you around the same or even higher than what I was able to achieve. I have not seen one single Venice fail @ 2.4GHz.

Relatively old, but still gold

I paid peanuts for the motherboard (Abit NF-95), and the system has been cool as well as rock-solid for two years. Neither is it noisy or requires any case cooling. It handles everything from business tasks to video transcoding, and I don't have to worry about it overheating even under full load. I see a lot of these CPU's being sold for very little money, the same for the boards they run on..most people want dual-core or HD chipsets, but for most tasks this older combo is more than enough with plenty to spare.

The only areas I would like to emphasise are the fact that the stock cooler comes with a thermal pad, and I would also recommending getting the best memory you can not so much for the performance, but for the stability.

Notes

The A64 doesn't benefit that much from stressing your RAM past PC3200 speeds, the same bus and HT speeds. Also, the memory dividors are set internally by the CPU (based on its default core speed), not by your motherboard's chipset. Hence a 3200+ and 3500+ will each use a different dividor in order to run your memory at PC200 speeds (/10 and /11 respectively).

 

[shiftstealth]

Nice 3 year old bump lol.