ASUS P5W DH - Problems + Fixes Thread

[mikepaul]

How did you guys configure the board for the Q9450. I am trying to configure the bus for this processor but don't know how to over clock it for this processor. Would appreciate any help you can provide. Thanks

I can't overclock it. I can't even leave it at 2.66Ghz. It crashes at random when I do.

If they EVER release a newer BIOS than 2704, I sure hope it allows like 1.3V since I'm told that the current lowest manual setting is too high and AUTO apparently isn't high enough...

Oh, and 48C is nice. Most folks stick to Celcius around here...

[JimmyDDD]

Thanks, did they ever mention of offering an update to the bios?

[Yolanda]

Thanks, did they ever mention of offering an update to the bios?

A lot of new CPUs upcoming, so I think they make new Bios

[Yolanda]

I can't overclock it. I can't even leave it at 2.66Ghz. It crashes at random when I do.

If they EVER release a newer BIOS than 2704, I sure hope it allows like 1.3V since I'm told that the current lowest manual setting is too high and AUTO apparently isn't high enough...

Oh, and 48C is nice. Most folks stick to Celcius around here...

It's because you have an old revision of our board, my rev. 1.04G can set any voltage from 1.25V on 45 nm CPU. However your lowers setting 1.45V not so high, really it's about ~1.41 via Vdrop.

[mikepaul]

It's because you have an old revision of our board, my rev. 1.04G can set any voltage from 1.25V on 45 nm CPU. However your lowers setting 1.45V not so high, really it's about ~1.41 via Vdrop.

That's SO nice to hear: limit the old board to HIGHER vCore rather than lower. That's the reverse of how stuff like vMCH works out...

[MacClipper]

It's because you have an old revision of our board, my rev. 1.04G can set any voltage from 1.25V on 45 nm CPU. However your lowers setting 1.45V not so high, really it's about ~1.41 via Vdrop.

Do you have any info precisely which is the earliest revision that allows proper low Vcore control for 45nm CPUs? Seen it mentioned a few times in passing but no one has come up with definite answers even in this most comprehensive thread.

Think mine is a 1.03G but still using 2406 BIOS, wondering if it is worth trying a 45nm (and flashing the lattest BIOS).

[Tamerlane]

Think mine is a 1.03G but still using 2406 BIOS, wondering if it is worth trying a 45nm (and flashing the lattest BIOS).

I think I've seen reports of 1.03G with proper voltages, not sure on which BIOS (pretty sure 2704). But never with 1.02G or lower, I don't believe.

I hope it's true about a new BIOS. If you want to increase the chances, I strongly encourage everyone to report the minimum manual Vcore setting problem to ASUS tech support, otherwise we might get more 'support' for new CPUs but not a fix for the Vcore problem.

Yolanda and others: is it pretty much confirmed that motherboard revision is the only/best explanation for why some don't get below 1.45V manual Vcore, while others do? Is it also confirmed that those with 1.02G boards and earlier cannot get below 1.45V even with BIOSes earlier than 2704?

[Falkentyne]

Good point above.

I think I should also add by asking the question:
Can anyone with a 1.02 board and a QX9650 set voltages below 1.45v also? (important to ask this!!!!)

And IN ADDITON
Does ANYONE with a 1.04 board and any 45nm chip ALSO have the 1.45 min vcore problem? (to further iron out the issue).

[mikepaul]

I hope it's true about a new BIOS. If you want to increase the chances, I strongly encourage everyone to report the minimum manual Vcore setting problem to ASUS tech support, otherwise we might get more 'support' for new CPUs but not a fix for the Vcore problem. :dammit

One thing coming from this is, from now on if I get a new motherboard with some later minor revision that doesn't seem too important at the time, I *WILL* RMA it immediately for the newer version. At no point did it seem like I was losing out on functionality, only overclocking my E6300 by just 1Ghz. Now that I can't even keep my Q9450 going at stock without crashes, which is rumored (for now) to come back to this revision stuff, I am just totally annoyed at ASUS and myself for short-sightedness...

Oh, BTW, my phone call to ASUS Support a while back gave me no hope for a new BIOS. That guy had no clue if/when another was coming...

[h4nc0]

I am running 2704 and cannot seem to change multipler to anything other than 9. (running Q6600) Is this a known issue?

thx

[irfs]

Do you have any info precisely which is the earliest revision that allows proper low Vcore control for 45nm CPUs? Seen it mentioned a few times in passing but no one has come up with definite answers even in this most comprehensive thread.

Think mine is a 1.03G but still using 2406 BIOS, wondering if it is worth trying a 45nm (and flashing the lattest BIOS).

Same boat as you running Rev1.03g e6600@3.6ghz for over a year now. wouldnt mind a Q9550 i called Asus in UK and asked if Q9450 would work on rev 1.03g they called me back after a few hours and said YES.

Q9550 Latest bios 2801