ASUS P8P67 Pro/Evo/Deluxe OC discussion thread

[PatRaceTin]

Those Pro/Evo/Deluxe got same 12phase ???

[illuminati-hwt]

Those Pro/Evo/Deluxe got same 12phase ???

Nope. Deluxe has 16. You mean VRM type/model/make? I'd would think so.

[illuminati-hwt]

1: What is the difference between BY ALL CORES and BY PER CORE?
2:What is considered the safe voltage for these new I7 CPU's?
4: Where in the motherboard is the RTC RAM switch?
Thanks again!

One multiplier for all cores vs letting you set multipliers individually per core.
Also when using one multiplier for all cores, it can be controlled in Windows.

Intel states 1.52v. There's a big discussion on whether this is safe. It sure sounds like A LOT. I wouldnt go over 80c.

Blue jumper near the green LED in the bottom.

[danielkza]

"Intel states 1.52v. There's a big discussion on whether this is safe. It sure sounds like A LOT. I wouldnt go over 80c."

This is false: Intel doesn't state the safe voltage at all. 1.52V is just the maximum voltage the new VID encoding can represent. An explanation follows below if you care.

VID is encoded in a byte, whose 8 bits can represent 2^8 = 256 different values. One value (all bits unset) is reserved for a null or invalid voltage. The first of the 255 remaining values decodes to 0.25V. The next 254 5mV increments sum up to an extra 254 * 5 = 1.27V. Therefore, the range of representable (not deemed safe or qualified by Intel in another way) values is 0.25 - 1.52V.

[SBB]

Judging by what i've seen temps wise i'd probably say up to 1.4v is safe for 24/7 ... for a quick bench/overclocking test anything goes really as long as you accept the risks and the temps are under 80-85 ish max ...

[FrostyAMD]

Did you guys do a fresh install of Windows 7 ? got a setup that I'm happy with and need to understand any difficulties with trying to use it with the new motherboard and chip. Thank You!

[Nano2k]

Did you guys do a fresh install of Windows 7 ? got a setup that I'm happy with and need to understand any difficulties with trying to use it with the new motherboard and chip. Thank You!

I didn't at first and then I did and at least a graphic card issue disappeared... I wonder how many issues it fixed and I might have to recheck all my stability settings because I am under the impression I could also down my volts a little.

[Lu(ky]

Just pulled the trigger on the ASUS P8P67 Deluxe with a 2600K.. I wanted to buy the GIGABYTE GA-P67A-UD5 board but not in stock at MicroCenter.. So I decided Asus never fails me.. Just got done installing H20 on CPU up all night, going to bed have to go back to work Sunday night

[GoldenTiger]

Having some issues before I start to overclock. CPU-Z keeps showing my CPU being downclocked to 1.6ghz. Even with speedstep and C1E disabled. Am I missing something new?

This is normal, it will downclock when not under load.

Did you guys do a fresh install of Windows 7 ? got a setup that I'm happy with and need to understand any difficulties with trying to use it with the new motherboard and chip. Thank You!

I was tempted to try not reinstalling, but I did a fresh Win7 HP 64 install anyway as I had found hit-and-miss results through google. It seems it may look to work OK but then have lots of little issues/glitches/inconsistencies that aren't really readily apparrent. So, I'd say reinstall .

[DeadmanX]

Sbb can you pm me your exact settings in BIOS?? I have pretty similar setup and was wondering if u guys like prime 95 for testing ? Imo its an unlikely event that your system will be pushed that far.. to each his own tho Sbb that is impressive oc for that voltage

[crossg]

Not sure why Speed step is causing issues, Here is why I turn it off. It's supossed to reduce clock and core voltages (power saving feature) but when OCing from bios, Core voltage only drops slightly as compared to stock clocks where core voltage really drops.

[TASOS]

The PRO would be the perfect P67 board if it had power and reset buttons, but unfortunately you have to shell out an extra $20 for them on the EVO (the only other thing you get is dual-LAN, which at least for me is not that useful).

The pcb is ready for a mod

All you need is 2 micro switches and some basic soldering skills.

[GoldenTiger]

Sbb can you pm me your exact settings in BIOS?? I have pretty similar setup and was wondering if u guys like prime 95 for testing ? Imo its an unlikely event that your system will be pushed that far.. to each his own tho Sbb that is impressive oc for that voltage

I, personally, do push my rig that far in some normal apps... prime also helps ensure you have no calculation errors which is important to me, not just avoiding crashes.

[joshua7]

P8P67 NON-pro only supports CF, and has one x16 slot that runs full-speed. When the second slot is populated for crossfire it goes down to x4 or x1 mode (x4 if no other devices are in use except the two video cards, x1 otherwise) while the main slot goes to x8.

The P8P67 PRO has SLI and CF support with x8/x8 in the two slots for those setups (i.e. the crippled performance of the NON-pro model in CF/dual card config isn't the case on the PRO). Additionally it features an Intel NIC vs. the Realtek one of the NON-pro, and better phase regulation as well as a bunch of other more minor features/niceties of the board.

Definitely go for the Pro if you can... if you NEVER intend to try a multi-card config, the non-pro could be viable, but it is an inferior board.

...

Additionally it features... better phase regulation

Just out of interest, you base this on what? It seems the 2 boards are identical oc-wise.

[GoldenTiger]

Additionally it features... better phase regulation

Just out of interest, you base this on what? It seems the 2 boards are identical oc-wise.

A faulty memory, apparrently .

[DeadmanX]

Do you guys run the hardest test in prime95 or the 2nd strongest to test stability ?

[illuminati-hwt]

Tried to find out how VRM frequency affects oc.

Starting with VRM freq = Auto.
I went to an oc of 5ghz and with volt where Prime95 would fail after 2-3 tests. (Linx would pass).
Reboot and set VRM=350. Prime95 still failed after 2-3 tests.
Set 400, still fail, 450 still failed.

Am I going about this the wrong way?

Asus rep on VRM:
VRM Frequency change to 350 – this value will allow for scaling to 50+ multi without issues
http://www.xtremesystems.org/forums/...d.php?t=265398


DeadmanX, I use the Small ffts. It should do fine for max stress testing cpu.

[orion23]

Having some issues before I start to overclock. CPU-Z keeps showing my CPU being downclocked to 1.6ghz. Even with speedstep and C1E disabled. Am I missing something new?

I had the same issue..
Speedstep has to be disabled along with these
C1E and the next 2 settings.
C3
C6 ??

System properties doesn't show the actual overclock, neither does Coretemp...


BTW, Thanks illuminati-hwt for your answers above...

[illuminati-hwt]

I had the same issue..
Speedstep has to be disabled along with these
C1E and the next 2 settings.
C3
C6 ??

System properties doesn't show the actual overclock, neither does Coretemp...

To what gain? I have all enabled. RealTemp 3.65 reads 5ghz just fine.

[orion23]

Did you guys do a fresh install of Windows 7 ? got a setup that I'm happy with and need to understand any difficulties with trying to use it with the new motherboard and chip. Thank You!

I just upgraded from an IP35 PRO and didn't reinstall windows.
Just remove all usb devices from your PC to help the process and put the asus CD in the PC so windows can locate most drivers.

Manually from the CD you may have to run the Bluetooth driver and the intel management software (I did)

[orion23]

To what gain? I have all enabled. RealTemp 3.65 reads 5ghz just fine.

For me, disabling speedstep wouldn't work for me, but when I disabled the next 3 values I was able to see a constant speed of 4.8ghz in CPU-Z

[ProStreetCamaro]

For me, disabling speedstep wouldn't work for me, but when I disabled the next 3 values I was able to see a constant speed of 4.8ghz in CPU-Z

You want it to stay at a constant speed? I dont have an asus board but I rather like having mine run at 1.6 when idle. As soon as I open anything intensive mine jumps straight to 5.0 no problems.

[GoldenTiger]

You want it to stay at a constant speed? I dont have an asus board but I rather like having mine run at 1.6 when idle. As soon as I open anything intensive mine jumps straight to 5.0 no problems.

Same... no reason not to leave them on that I know of, runs cooler during low use and draws less power for no loss whatsoever, during light/idle usage.

I just upgraded from an IP35 PRO and didn't reinstall windows.
Just remove all usb devices from your PC to help the process and put the asus CD in the PC so windows can locate most drivers.

Manually from the CD you may have to run the Bluetooth driver and the intel management software (I did)

Yeah, I gather it works but there's a lot of possible underlying glitches... for some reason my external slim USB DVD burner can't read the DVD that came with the motherboard, either... had to find the drivers on Asus site once I reinstalled Win7 for things like the NIC, using a laptop then putting them on a thumb drive.

[orion23]

"Intel states 1.52v. There's a big discussion on whether this is safe. It sure sounds like A LOT. I wouldnt go over 80c."

This is false: Intel doesn't state the safe voltage at all. 1.52V is just the maximum voltage the new VID encoding can represent. An explanation follows below if you care.

VID is encoded in a byte, whose 8 bits can represent 2^8 = 256 different values. One value (all bits unset) is reserved for a null or invalid voltage. The first of the 255 remaining values decodes to 0.25V. The next 254 5mV increments sum up to an extra 254 * 5 = 1.27V. Therefore, the range of representable (not deemed safe or qualified by Intel in another way) values is 0.25 - 1.52V.

Judging by what i've seen temps wise i'd probably say up to 1.4v is safe for 24/7 ... for a quick bench/overclocking test anything goes really as long as you accept the risks and the temps are under 80-85 ish max ...

This is all over:

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!



Processor - Basically we recommend customers not to exceed 1.35v to play it safe, all our bundles are set at 1.3250v or lower, any competitors offering bundles above 4.6GHz you should be enquiring as to what voltage they are using as we believe anything over 1.38v will limit CPU lifespan and anything over 1.42v will likely kill the CPU or severely limit its lifespan.

Memory - Intel recommend 1.50v plus/minus 5% which means 1.60v is the ideal safe maximum, but we have found in our testing all 1.65v memory is fine. We have also found most new 1.65v like Corsair XMS3 will run at its rated timings with just 1.50-1.55v which is well within Intel specifications. So people upgrading to Sandybridge you can still use your old DDR3, but we do recommend you run it at 1.60v or less. We are shipping most of our bundles which feature Corsair XMS at 1.50v-1.55v at rated timings. We've also discussed with Asus and MSI regarding voltages for memory and they also confirm in their testing 1.65v caused no issues with reliability.

Base Clock - To put it simple if you value the life of your components, do not overclock using base clock!

PLL Voltage - Again do not exceed 1.9v!

Don't know where it comes from or how official it might be...

[orion23]

Same... no reason not to leave them on that I know of, runs cooler during low use and draws less power for no loss whatsoever, during light/idle usage.



Yeah, I gather it works but there's a lot of possible underlying glitches... for some reason my external slim USB DVD burner can't read the DVD that came with the motherboard, either... had to find the drivers on Asus site once I reinstalled Win7 for things like the NIC, using a laptop then putting them on a thumb drive.

I was doing something with Winrar and Quickpar and the CPU would jump constantly from 1.6 and it wouldn't stay "maxed" while working

Temperature wise, I'm very happy, Idling @ 34-36 running constantly @ 4.8ghz 1.390 volts