Asus P5N32-E Overclocking Guide - Page 499 - Overclock.net

stargate125645 · 05-23-08

Quote:

Originally Posted by t4ct1c47

I had the BIOS option set to 1.6v for the CPU, although this equated to 1.55v real voltage afer vDroop. I did have the E6600 running at 3.75Ghz on a 24/7 basis, although I only had a single 8800GTS at the time and modded my previous Armour Jr by replaceing the side window with a mesh and two 120mm fans. It was impossible for the system to maintain stability at those speeds without those improvements to the airflow. The Northbridge was also ridiuclously high at 1.55v as well.

To anyone who thinks those kind of voltages are dangerous, please bear in mind that I'm currently using the exact same motherboard 12 months later. Like I said before, temperatures are the most dangerous factor when raiseing voltages.

Not necessarily. Your one case doesn't make the rule. It is more likely do make the exception to the rule.

**t4ct1c47** · 05-23-08

Quote:

Originally Posted by stargate125645

Not necessarily. Your one case doesn't make the rule. It is more likely do make the exception to the rule.

I wouldn't really call it a rule, but I know what you mean. At the end of the day I think it's perfectly fine to throw volts up as long as you pay very close attention to the temperatures, and make the necessary changes to the cooling, along with regular cleaning out as and when necessary to avoid dust clutter. It also helps when you know what you're doing.

stargate125645 · 05-23-08

Quote:

Originally Posted by t4ct1c47

I wouldn't really call it a rule, but I know what you mean. At the end of the day I think it's perfectly fine to throw volts up as long as you pay very close attention to the temperatures, and make the necessary changes to the cooling, along with regular cleaning out as and when necessary to avoid dust clutter. It also helps when you know what you're doing.

But excessive voltge can degrade the chip over time, so although you may not notice any difference now you very well could be diminishing the lifespan of the chip. Now if you don't care what happens to the CPU when you're done with it then whatever, I guess. But for my own peace of mind, I keep things reasonable so that when I sell an older part I know it will work for the new owner just as well as it did for me for a very long time.

thehighlander123 · 05-23-08

Quote:

Originally Posted by Robilar

There is no real solution.

The top end for quads on the board is between 3.2 and 3.4 ghz max.

but how come the fsb wont go over 1480 no matter what

blutak_sux · 05-23-08

hi, i had a productive day today, lapped my cpu, installed a thermaltake spirit on my NB, added in a few more fans for good measure and obviously used some new thermal compound coz i like trying new things, (who doesnt eh).
Anyway, reinstalled it all, got my system up and running, and im at 3.6Ghz now but cant get it stable in orthos? Temps at idle are cpu 35, NB 53, SB 60 but i did have to use some quite high voltages to get it to load windows, currently at NB 1.6V, SB 1.55, and vcore about 1.52.
Kinda stuck now as dont really know where to go next? Btw im using 4gb ram but unlinked at stock 800mhz, would this effect the stability even if ram isnt stressed?
Thanks!!

**t4ct1c47** · 05-23-08

Quote:

Originally Posted by stargate125645

But excessive voltge can degrade the chip over time, so although you may not notice any difference now you very well could be diminishing the lifespan of the chip. Now if you don't care what happens to the CPU when you're done with it then whatever, I guess. But for my own peace of mind, I keep things reasonable so that when I sell an older part I know it will work for the new owner just as well as it did for me for a very long time.

I've noticed that maximum voltage will always differ from person to person. Even when I had my E6600 overclocked I made sure not to go over the maximum voltage recommended by Intel. Would I go over it with water cooling? Definately not on a 24/7 I assure you, plus I wouldn't want to alter my current chassis as drastically.

Quote:

Originally Posted by thehighlander123

but how come the fsb wont go over 1480 no matter what

Quote:

Originally Posted by ericeod

You will find it difficult to OC on the ASUS 680i motherboard with a quad.

3.2GHz-3.4GHz will probably be your limit. Its not just the FSB Hole at play here, it is the GTL REF voltage. The ASUS 680i motherboards struggle to OC the quad core. The problem is a hardware issue. The ASUS 680i motherboards do not follow the NVIDIA reference design, while they are great overclockers with the dual cores, they are not in any way good overclockers with the quad cores. This is due to the GTL voltage supplied to the CPU. The rev A1 680i boards released by NVIDIA (rebadged by EVGA, XFX and BFG) fixes this issue. Unfortunately ASUS will not do anything about it. So this is a hardware issue that will never be fixed by bios updates.

Here is some documentation:
Vr-Zone A1 revision

There is a way to modify the board to compensate for this:
Vr-Zone Ketsfield mod

Rep +1

Recently I have had my own thoughts that the VID, the default voltage required for the CPU to operate which differs from CPU to CPU, may be a factor as well.

Quote:

Originally Posted by blutak_sux

Kinda stuck now as dont really know where to go next?

More CPU vCore.

Be sure to check the voltage monitor in your motherboard's BIOS to confirm the real voltage that's running through your CPU after making any changes to the CPU vCore. Also pay close attention to your temperatures when sressing with Prime or Orthos.

Also be very wary when you update BIOS's if you have altered your vCore. Sometimes a BIOS fix may alter the amount of vDroop and you may find that 1.6v really does set 1.6v as opposed to 1.55v.

**Robilar** · 05-23-08

Quote:

Originally Posted by thehighlander123

but how come the fsb wont go over 1480 no matter what

at a 9x multi right?

thats 3.3 ghz

like i said thats around the max for a quad.

I had the asus board over 500 FSB with a dual core chip but with the quad chip 370 is about your ceiling.

you might get a slightly higher fsb if you drop the multi but there is no real point.