"ASUS P5Q Deluxe discussion".

[truehighroller]

With him being fine on revision 0803 it shoots this assumption down.

[Singh400]

Truehighroller, you got a link to your settings mate? Did have the ones for the 3.6 Ghz written down somewhere, but I've lost the paper. Cheers.

[LUCI5R]

Long story short, have you tested your RAM to know it's OK? Who knows, maybe the board fried the RAM, I'm really, really surprised my RAM went bad. I've never had a stick go bad like that in 15 years of building my own computers and selling custom built PC's to others.

Yup, as true stated ... system works rock solid on 0803 ... as if nothing ever happened!

@ truehighroller ... awesome! So the boss has his hands on your video. That's good news. Let's see he comes back with something.

[truehighroller]

AI Overclock tuner: Manual
CPU Ratio Setting: 8
FSB Strap to North Bridge: 333
FSB Frequency: 480
PCI-E Frequency: 103
DRAM Frequency: 1152
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual

1st Information:
CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: Auto
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information :
READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information :
WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO

DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: Enabled
AI Clock Twister: Stronger
AI Transaction Booster: Manual

PL: 8
All pull ins enabled

CPU Voltage: 1.25
CPU GTL Voltage Reference (0/2): .63
CPU GTL Voltage Reference (1/3): .63
CPU PLL Voltage: 1.56
FSB Termination Voltage: 1.22
DRAM Voltage: 2.02
NB Voltage: 1.3
NB GTL Reference: AUTO
SBridge Voltage: 1.2
PCIE SATA Voltage: 1.6

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : AUTO
NB Clock Skew : AUTO


There you go hope it helps yeah.

[truehighroller]

I have turned every rock possible with this issue and everything seems to point towards it being cpu related. I could have proved this but, I lapped my shiznit because it was / maybe still is, such a good chip and now I can't swap it for another at Micro Center.... I wish some one here lived close to me to because that would be another way to prove or disprove it.

[LUCI5R]

Do you know why they added the CPU Margin Enhancement?

[truehighroller]

Intel told them they should.... because it helps overclocking on some lower end CPUs "supposebly". I have never received a here is the reason from any of my contacts as of yet that was based on them getting the info from internally I will add though, that the tech I spoke with when this thing first started unfolding for me said he found what Leo said on some post on the internet / set to optimized gets you more fsb.

[LUCI5R]

I quite honestly don't know what will be the cure. I doubt they will get rid of the setting itself, and therefore I don't know if there will be a permanent solution.

Overclocking was never an issue. I was running 3.8Ghz (475 X 8) easy from my very initial attempts - rock solid stable - 24/7. I never, ever thought that the at-the-time insignificant Shut Down issue would evolve to the monstrous bug our chips seems to have been dampened with.

[truehighroller]

Yep I was running at the same setting on the 1102 as I wasn't able to pull off my 480 x 8 setting that I can now yet. I am deeply sadened by the whole thing. Ket said we should all jump on the band wagon and harass them until they take the option out. I just shot an email to both the boss and the engineer.. asking for update.......

[jagt]

Is 1406 still beta? I need to try a different bios because this cold boot issue is getting on my nerves!

[LUCI5R]

Is 1406 still beta? I need to try a different bios because this cold boot issue is getting on my nerves!

1406!!

I thought we were only upto 1403.

Anyhow, @true ... where can I email them? Cause I can surely harass them well in there.

[BababooeyHTJ]

I just got rid of that odd double post problem with my board. All I did was clear cmos, load defaults, flash (with the same bios file), and clear cmos again. Now I dont have that odd double post everytime that I change settings in bios. I was a little worried about that.
BTW, this sucks I was really thinking about picking up a q9450.

[jagt]

1406!!

I thought we were only upto 1403.

Anyhow, @true ... where can I email them? Cause I can surely harass them well in there.

Yeah yeah, got the number messed up :P My question still stands.

[truehighroller]

I never received an email or a call...

[BababooeyHTJ]

Should I be worried here? All of my monitering programs are all over the place. I cant figure it out.

I see this type of stuff in cpuz too, ocassionally. I just ran prime for 12 and a half hours stable. There were dips and spikes like that on the 3.3v graph and the 12v graph, just not as many.

[platojones]

Thanks for that. I wonder if the same applies to the e8000 series dual core processors on the P45 chipset? I also wonder that if it only applies to the quads, why that would be, and if that means that the Vtt circuitry of the quads are more robust than the dual cores?

**EDIT - I just DL'd the latest version of the e8000 data sheet, and it also now says 1.2v standard, 1.14v min and 1.26v max for Vtt. I wonder why it's different for the 4 series chipsets? Well at least I now know up to 1.26v is safe, I was using 1.25v sometimes during benches and was slightly concerned I was over the max. Good news indeed.



It is quite concerning that it was initially fine for a period of time, then there was a non shutdown issue, then finally complete instability. I would be quite concerned that the cpu was damaged, as nothing else really explains the rapid degradation to complete instability.

I would have thought Asus would have tested all processors with their bioses, and it is disappointing this situation has arisen. If the cpu is damaged, along with truehighroller's and no doubt countless others globally, Asus will have a lot to answer for, and they should be replacing all affected cpu's immediately, along with immediately removing that option from the BIOS and any future BIOS releases.

No problem. It's good to know what the 'official' limits are when overclocking anyway. Sounds like you are in good shape. From now on, these datasheets will be the first things I read before attempting to OC on a new chip. I was holding back on upping the Vtt because I had read somewhere that it was 1.15v for the Q9000...but when I read the datasheet, I realized that max only applied to the 3 series chipsets...not the 4 series like the PQ5's. So, I took your advice and upped the Vtt 2 notches to 1.18. Since I did that, I have had no failed posts and was able to prime 12 hours while reducing my DIMM volts a full 1v...sweet deal.

As far as the significant difference in max Vtt between the 3 and 4 series...I can only guess, but I suspect that the ICH10 NB was more than a simple die-shrink...I'm totally guessing here, but I think the ICH10 has much tighter control of voltages, so it allows a higher Vtt without risking excessive transient excursions of Vtt...just a guess though...

[EDIT] Nope, you folks are right...I didn't reduce Vdimm by 1v...more like .1v...still pretty good, eh?[/EDIT]

[CryptiK]

No problem. It's good to know what the 'official' limits are when overclocking anyway. Sounds like you are in good shape. From now on, these datasheets will be the first things I read before attempting to OC on a new chip. I was holding back on upping the Vtt because I had read somewhere that it was 1.15v for the Q9000...but when I read the datasheet, I realized that max only applied to the 3 series chipsets...not the 4 series like the PQ5's. So, I took your advice and upped the Vtt 2 notches to 1.18. Since I did that, I have had no failed posts and was able to prime 12 hours while reducing my DIMM volts a full 1v...sweet deal.

As far as the significant difference in max Vtt between the 3 and 4 series...I can only guess, but I suspect that the ICH10 NB was more than a simple die-shrink...I'm totally guessing here, but I think the ICH10 has much tighter control of voltages, so it allows a higher Vtt without risking excessive transient excursions of Vtt...just a guess though...

Nice one I had a feeling the instability may have been related to the Vtt. Good to hear it now seems stable. Whatever the reason really is for the higher Vtt on 4 series chipsets, it's nice to have a little more latitude.

[ThugsRook]

what PSU is this with?

[mac_69]

friggg, now mine will not shut down properly, shuts down, and tries to turn back on like a restart - have to load settings again as it flags overclock failed when I catch it and power off at the psu

on 803 with q9450 and everything else running normally. Not changed anything in bios to trigger this.

Sigh, will monitor and update on the thread

[BababooeyHTJ]

what PSU is this with?

Pc Power and Cooling Scilencer 750w. I have a spare BFG 800w that Im going to try out. Shouldnt stuff like that at least make my chip fail prime?

[Glow9]

Okay sooo been reading the last few pages and it sounds like peoples boards are crapping out on them/ having issues. Do you guys just think this is a BIOS thing or are they dieing?

[mjh74]

Well I'm guessing this is the best overclock I'm going to get with this board . I was hoping for a bit more but I guess it's better than a kick in the teeth .

[truehighroller]

friggg, now mine will not shut down properly, shuts down, and tries to turn back on like a restart - have to load settings again as it flags overclock failed when I catch it and power off at the psu

on 803 with q9450 and everything else running normally. Not changed anything in bios to trigger this.

Sigh, will monitor and update on the thread

Bump your core voltage a little, no biggie. I had to up mine a little yesterday to 1.2625v~ I also had to bump my nb voltage once to 1.3 which it was 1.28 for awhile. I think it is just stuff breaking in a little that's all.

[LUCI5R]

Alright, so I formatted my hard drive and reinstalled Vista. System running rock solid stable without interruption at BIOS 0803 ..

... but ...

Shut Down Woes Persist!!!
This is NUTS!!!! I'm on 0803 and reinstalled OS. So it's neither BIOS, nor Software. The only thing I can think of something interrupting from the Hardware. I'll take it apart and put it back together - but this is still NUTS!! The problem started randomly - not after any upgrade/change/modification - just one fine day.

The only other nightmare I can think of is a permanent damage to my Chip or something from the whole CPU Margin Enhancement scandal.
I don't know. This is ballistic. Can't get rid of the damn Shut Down woes.

[truehighroller]

Beat that horse damn it beat it... I am curious about your power supply have you tested it? Also maybe your MB is really ting out on you here. My guess is though that when you get the new one back you will still not be able to use > 0803.