Safe vcore for an Athlon XP 3200+ (Barton)?

I'd like to squeeze some more out of my 3200+ which has been clocked stock since I built it over three years ago. What is a safe vcore value for the chip and how fast have others overclocked this thing?

System specs:[code:1:af3238d890]Antec sever case with plenty of fans and flow
Athlon 3200+ cooled via a Thermaltake Silent Boost with AS5.
Asus A7N8X-E Deluxe (nforce 2 Ultra 400 using BIOS Rev 1013)
Crucial Ballistix 2x512 meg PC3200 they are either 2-2-2-8 or 2-2-2-6 I can't remember)
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Current temps as per Asus PCProbe:
(CPU/MB)
Idle:39/22
Load:55/23

Here are the current stock settings:

This is interesting. I upped the Ram voltage to 2.8 and dropped the timing from 2-2-2-8 and every thing is fine now @ 225 MHz FSB (core voltage 1.70)

The Ballistix take more abuse than the CPU can. I finally settled for conservative numbers: stock voltage (1.65) and 220 FSB which gives 2425 MHz or 10 % O/C and the memory is set to 2-2-2-8.

Running prime 95 now. Been going for about 30 min 53C/21C

Funny part is that a 10 % increase isn't really worth it, but it's an old machine that I'll replace when the 6750 comes out this summer so who cares.

Why would you want an e6750 over an e6700 when they have the same core speed and the e6700 has a higher max multiplier? You can just run the e6700 @ 333*8 if you so desire.

1. Most good motherboards can unlock the lower multiplier values.
2. Usually, if you are going for a higher overclock, the lower multiplier and higher fsb is better, as it provides a larger RAM bandwidth. On the other hand, the 6700 has a higher stock multiplier, which can be lowered using the motherboard. It just gives you more possibilities when you overclock.

Best of Luck

Yep. Darkstar is right. If you're spending enough money to buy a 6700, you're going to buy a motherboard that has the capability to lower the multiplier. This being said, the 6700 is a better value.


There are two reasons to buy the 6x50 series chips. One is if you are NOT planning to overclock. The higher FSB of these chips will increase performance of the memory subsystem. The other reason to buy from the 6x50 series is that the lower-end chips, mainly the 6350 (I think thats the new label...) will have a 4 mb L2 cache, as opposed to the 2 mb currently on the 6300.


By the way, a safe vcore for the Athlon XP's is about 1.8 volts.

Best of Luck

On the topic of AthlonXPs, I used to have my Thoroughbred-B 2600+ (166*12.5=2083MHz stock) at 2.5GHz with 1.95v vCore (watercooled). It kept that up for ~3 years.

The CPU is still running fine today in my little brothers PC. The capacitors on the motherboard gave out however, as they often do on boards of that era.

I have the exact same motherboard as you, and I can tell you a couple things.

Though you cant see it in bios. the bios is set to 1T CPC on. And because of this, it doesnt like going over about 225 FSB. I have a XP2500+(1.8Ghz) Barton core, and I can run it prime stable at 2.62Ghz on basic air. 11x238 @ 1.85V runs about 53C fully loaded. I have really good memory. I can run 2-2-2-5 DDR476. I have OCZ platinum Elite edition DDR600/DDR400 hand picked TCCD



If you want to change to 2T CPC off so you can run your FSB higher or even keep it at 1T cpc on, either way with more voltage control options, go here and get trats modded bios. I have used both and both work no problems. The thread originally only notes the A7N8X-E, but the modded bios works for the delux that you and I have as well. He doesnt mention the delux models till hte later pages of the thread.

http://forums.pcper.com/showthread.php?t=352326