Sweet SL6WU OC !!!

[Home-Chicken]

My adventure began last thursday when i was looking over the local Fry's Electronics add and noticed a sale on the P4 3.0c w/ crappy ECS mobo. I was meaning to make a second tivo system [use the ECS and my current 2.4c in the tivo box] so i mozzied on over and picked up the chip. I had to go during my lunch break, and it turned out to be a huge fiasco because it was right before 4th of july weekend, so it was a zoo in there, and they couldn't find the SL6WK chip i requested. My previous experience with a bad 2.4c made me very weary about the chip model i purchased, so i was uneasy about taking a SL6WU, but they assured me that i could return it if i was not satisfied. So i said what the hey, and took the SL6WU.

After traveling over the 4th of July weekend i just got home and decided to pop the sucker into my Epox 4PCA3+ v2 and give the chip a wirl. Even though i know the 30 cap belief is just a myth, seeing that mine was a 30 cap when i opened the box was very reassuring.

After 3 hrs of slowly increasing the FSB and the VCORE I was able to hit 3.91Ghz at 1.65v !!! [The CPUID is included below]

Here's my system:
P4 3.0c @ 3.91ghz, 1.65v vcore
Epox 4PCA3+ v2
Buffalo PC3700 (winbond BH-5) @ 208, 2-5-2-2, 3.0v vdimm
ATI 9800pro @ 414/760
Cooling: Cathar Cascade, Chevy '71 pickup single pass heatercore, and a Danner Mag2.

My question is if this is a safe voltage to run my cpu on. I would also like to know if a higher voltage would be safe. I know 1.65v is pretty much the max for air, but i have a feeling i could hit 4ghz if i upped the vcore. While running the Final Fantasy XI benchmark i max at at 49c, ambient at 38c. The FFXI benchmark is fairly cpu intensive also, around 80% cpu usage. Any responsese would be greatly appreciated! peace out.

 

[Home-Chicken]

Oh btw, ignore the vcore reading from cpuid, it actually reads the vagp instead of the vcore for some reason.... if anyone knows how i can get my actual vcore with this board, please let me know, thanks!

 

[theELVISCERATOR]

pretty reasonable considering your cooling
I can bench at 260fsb on mine with air cooling.

 

[Home-Chicken]

is there a max vcore i should stop at?

 

[Chaos_Being]

I definitely wouldn't go past 1.65v.

That's a nice OC so far though

 

[AlienHack]

i beleive that 1.70 is the safe ceiling. i would pump it up to 1.7 and feel safe. Just to check its limits you can raise the vcore even more , try 1.75 just for testing , see the max oc it gives you, if its stable etc. then to be absolutely safe and sure drop it to 1.7 max. Thats what i'd do anyway. I personally have 2 2.8c @ 3.9 both stable! one on water and the other on air..

I run them both at 1.7 (my abit mobos undervolt a bit so its like 1.675V)

Something else, after you pump the vcore above 1.7 for testing probably you will see that from 1.675 and above the vcore doesnt make much diference, me for example, whether i give the cpus 1.7 or 1.775 i just see 1-2 fsb diference, thats not worth the extra volts and the extra danger so i drop it to 1.7-1.675

 

[Sjaak]

watch out for degrading..my chip died off 3.75Ghz / 1.6v after a month. is now running stock (which, luckily, is still stabile)

 

[Home-Chicken]

Sjaak, now you got me scared

I will test my system up to 1.7v but first i will try to figure out if my mobo undervolts or overvolts. Does anyone know the best way to measure the actual vcore? CPUID has a problem with my Epox mobo.

I will also try to measure the performance increase from maintaining my system at 1.6volts vs. lower voltages. See if the increase is worth it. I would not really care about the cpu frequency, but i play FFXI primarily and that seems to be fairly CPU intensive/restricted.

If anyone else has opinions about a safe vcore please share.

 

[Sjaak]

well, id ditn mean to scare you, just warning...

use motherboard monitor (google = friend) for the temp and voltage readings

 

[deathstar13]

Sjaak, now you got me scared

I will test my system up to 1.7v but first i will try to figure out if my mobo undervolts or overvolts. Does anyone know the best way to measure the actual vcore? CPUID has a problem with my Epox mobo.

I will also try to measure the performance increase from maintaining my system at 1.6volts vs. lower voltages. See if the increase is worth it. I would not really care about the cpu frequency, but i play FFXI primarily and that seems to be fairly CPU intensive/restricted.

If anyone else has opinions about a safe vcore please share.

cpuz is reading your vagp and not the vcore.
the epox p4ca3+ has wacky sensor readings accross the board,nothing matches up.use epox's tool thats on the driver cd.


nice oc btw.