A64 3200 Venice @2.5GHZ Voltage

[SamzAthlon]

Hi everyone,

I built a system about a month ago, which was running beautifuly until last night when the powersupply failed. I was wondering if anyone thinks if this happened because of my overclocking?

I have clocked my cpu up to 2.5ghz without adjusting the core voltage. The core voltage is still at 1.4v. Do you think I should up the voltage a little bit? I have not has any blue screens.

Specs:

CPU: AMD Athlon 64 Venice 3200 @ 2.5Ghz (HTT 1000 (250x4) - Mem Divider 0.83) Idle CPU Temp @ 32C
Motherboard: Giga-byte K8NS Ultra NF3
Ram: Corsair PC 3200 DDR400 1Gb CL2.5 (512mbx2) @ 416Mhz
Graphics Card: GeCube R9800XT 128mb @ 420/720
Case: Lian Li PC-7
Cooling: 2x120mm - 2x82mm (CoolerMaster)
OLD PSU: HEC Dual Fan 430W
New PSU: Antec Truepower 430W

thanks

Sam

 

[Shenkoa]

What kindof PSU did you have?

Its unlikely that it died as a direct result of the overclocking, too much power in general would cause most PSU's just to not function but not kick the bucket.

Personally I would up the voltage to see if I could not get a better overclock, try taking it to 1.45

 

[Merovingian]

1.525 is pretty good and fine for that processor. CPU cooler? Idle temps mean nothing to me, try prime 95 under load for about an half an hour to see if your stable or if you have temp issues. 53C should be fine as a max.

 

[SamzAthlon]

1.525v, are you serious? The venice stock voltage is 1.4v. So far my max temp on prime95 goes to 55C on full load. No errors...I ran for 1.5hrs.

Should I stick with 1.4v at 2.5ghz clock speed? Or should I bump it up to 1.425v?

To answer Shenkoa,

Before I was using HEC 430w Truepower, which failed on me.

Now im using Antec 430w Truepower

 

[Yuriman]

Originally posted by: TheMerovingian
1.525 is pretty good and fine for that processor. CPU cooler? Idle temps mean nothing to me, try prime 95 under load for about an half an hour to see if your stable or if you have temp issues. 53C should be fine as a max.

He speaks the truth. You can download prime95 here:

http://mersenne.org/gimps/p95v2413.exe

Just because a cpu boots up and doesn't give bluescreens when doing nothing doesn't mean its stable. Run the torture test in P95, and if it has an error the tray icon will turn yellow.

 

[SamzAthlon]

I tested all 3 prime95 torture tests. No errors. I ran for 1.5hours. Maybe its just the venice core. Maybe you really dont need to up the voltage to oc the cpu (A64 3200) from 2.0ghz to 2.5ghz.

 

[Mogadon]

you need to run prime95 for 24hours before you and us should be convinced of your system's stability.

 

[dainthomas]

I like to actually do stuff like USE MY COMPUTER during the day. If it primes 8-10 hours overnight that's fine with me.

 

[shiranai]

55C on load? Isn't that a bit high? What's your ambient room temp? Are you sure your heatsink is attached correctly? If you're running 55C on stock voltage, I wouldn't try overvolting it until you find out where your temps are coming from. My 3200+ @1.54V does ~44 under load (XP-90+vantec stealth)

Vcore is generally safe up to stock*110~113% (so about 1.58 is as high as I would take it). Though overvolting of any kind (and high heat) increases chance of damage and lowers overall part lifetime, it's not that significant within the 110% range or so.

2.5Ghz on stock Vcore isn't that uncommon. Both my friend and I have Venice 3200+ cores that will do 2.5~2.6 on stock (mine was prime/memtest/superpi stable for 40+ hours).

 

[Yuriman]

Im actualy undervolted by .05v on my venice, running 280x9=2520mhz. At stock I can actualy turn the voltage all the way down to about 1.1v. Venice cpu's still get a boost when you overvolt, but you are nowhere near it's max clock, so it doesn't need one yet.

 

[SamzAthlon]

run prime95 for 24hrs? When would I get time to use the computer?

So far my windows has never crashed on me unless off course it was due to software glitches such as new game patches which crash the game itself.

2.5ghz on my venice 3200 is as far as I am going. If I go any higher I would have to change my HT multiplier to 3 which will bring my fsb down from 1000. 250x10 with HTx4 is good enough for me.

When I first started to overclock I followed anands quick and dirty guide...LOL....its good stuff!

 

[agreenfield]

Why do people keep saying you can't run Prime95 while using your computer? It runs in the background with a low priority; you shouldn't even notice it is running. Also, I don't think there is any difference between one 24-hour session vs. three 8-hour sessions; its not like Prime95 is counting down to the time it will fail, it is just a probability thing.

To add something semi-usefull and on-topic to this thread, my 3200 Venice isn't even stable at 2.5Ghtz at 1.5 volts.