**Official ASUS P5Q PRO Turbo/PRO/Turbo Owners Club** (All ASUS P45 Mobo Owners Welcome!) - Page 561

Greetings!

I have just recently acquired an ASUS P5Q-E motherboard, but im having difficulty overclocking it to higher values, and am hoping that someone here would be able to walk me through it so i can get the 400x10/500x8 overclock i want.

Right, as of right now my settings are this:

AI Overclock Tuner: Manual
CPU Ratio Setting: 12.0
FSB Frequency: 333mhz
PCI-E Frequency: 100mhz
FSB Strap to NB: 266mhz
DRAM Frequency: DDR2-835mhz
DRAM Clock Skew Channel A1: Auto
DRAM Clock Skew Channel A2: Auto
DRAM Clock Skew Channel B1: Auto
DRAM Clock Skew Channel B2: Auto
DRAM Timing Control: Manual
tCAS: 5
tRCD: 5
tRP: 5
tRAS: 5
tRRD: 3
tRFC: 50
all other memory timings auto
DRAM Static Read Control: Auto
DRAM Read Training: Auto
Mem OC Charger: Auto
AI Clock Twister: Light
AI Transaction Booster: Auto

CPU Voltage: 1.4250 (1.4000v actual)
CPU GTL Voltage Reference 0/2: Auto
CPU GTL Voltage Reference 1/3: Auto
CPU PLL Voltage: Auto
FSB Termination Voltage: 1.24
DRAM Voltage: 2.2v
NB Voltage: 1.28
NB GTL Reference: Auto
SB Voltage: Auto
PCI-E SATA Voltage: Auto

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCI-E Spread Spectrum: Disabled
CPU Clock Skew: Auto
NB Clock Skew: Auto
CPU Margin Enhancement: Optimized

Its nice and stable at these speeds, but if i attempt to go even to just 350mhz FSB, which both the board and CPU are capable of (Previous owner of the board had a good Q6600 near 4ghz on it, which at minimum requires 430mhz FSB @ 9x multiplier.), it fails. I have no idea what Im doing wrong but I'd like to learn and then make it happen. Any suggestions?

Thank you.

Ok ill give it a look but at this point i think this chip just wont play nice much higher than 333mhz FSB.

As for my VID, according to Coretemp it is 1.2875v, and right now after several hours of prime95 and IBT trying to stabilize it as is, is currently set to 1.413 (LLC bumps it up to 1.425-1.432 under extreme load). I think that if i really desire to unlock the full OCing potential of this board, i have to ditch the E5300 for something with a little more kick to it EG a E7, E8, Q8, or Q9 series processor, preferrably a 45nm quad. If i had the funds id purchase a better CPU, but ive pretty much sunk most of what i have gotten from selling things into purchasing this board, and my next planned upgrades are a GTX 260 216 and a 550W Rosewill HIVE psu to support it.

What do you want to see pictures of?

Have you tried running 400MHz FSB with the CPU set on the lowest multiplier? That way you can tweak voltages to get stable, then worry about CPU overclock.

Tried that. This motherboard w/ this processor installed DOES NOT like the 400mhz strap, the strap i have to put on to keep my ram below 900mhz, and at the same time at or above 800mhz. The board wont post when the memory is too slow, and the ram doesnt like anything faster than 875mhz.

I really need a 4GB kit of 1066 ram.

Ill try again but it will most likely fail again.

What happens when you leave the strap on AUTO? With 400MHz FSB, the RAM should default to 800MHz when set to auto.

Dunno, id have to reboot and give it a shot. Although it might just end up causing my comp to flip out again, forcing a cmos reset. At least ASUS had the foresight to add OC profiles so i dont have to go individually reset everything.

Ill give it a shot.

EDIT: setting the strap to auto and lowering the memory speed to within acceptable bounds before trying again also results in no post. I jacked up the voltages pretty good too.

At this point im just going to leave it at 333x12. Getting my CPU stable at that speed was a challenge in itself, because ANY attempt past 350mhz at all results in no post. I believe i have an FSB wall at that point.
Edited by Cyrious - 4/29/12 at 7:13pm

I just remembered I saw this a while ago but never joined, so I figured I'd join now. I have the P5Q Pro Turbo with a Q8200 overclocked to 3.0GHz. By the way, thanks for the link to my blog post on the first page.

Cyrious, which are the specs of your Ram memories?
-max freq
-latencies
-Voltage
If your processor it's in its right values which we don't know actually (volts, fsb, ...) You are sure overloading ram for max performance, and it can't, works so hot, or need more volts for doing it.

Of course... can we know what processor do you have? because if you're trying to get 4Ghz from a Pentium 4 I think it's not the right way unless you want to cook on your computer
LOL!