Prescott or Preshott!

ajcurtis · Post by **ajcurtis** » Sun Jan 30, 2005 1:15 pm

As I currently use a 3.0e intel Prescott cpu,I can definaetly confirm that it screw's
with the pulsar II card ,-system freezing including a fatal audio freeze which is only
fixed by a reboot.

Once my system temp is over "38" degree's celsius-scope/creamware turns to shit,BUT
the good new's is that if you can keep
your System/ambient temp at 38 degree's celsius but preferably UNDER that then
the pulsar DOESN'T stall/freeze.

Have a good think b4 buying a prescott cpu!
Spend most of your cash on the PC case
and Liquid Cooling is preferred!
Or if u have Air Con in ur studio,that
will surely solve the system-temp issue's
with prescott.

My PC Config:

Intel 3.0e Prescott cpu
Poseidon WCL 02 liquid cooling
Topower 500watt psu
MSI 865PE Neo2 board (intel chipset).
80G sata HD,20G Seagate IDE
"Creamware Pulsar II"
Hoontech DSP24 v
WinXP Pro
Nvidia geforce4 64mb graphic's

ps.if anyone has any advice regarding
cooling prescott and any issues between
prescott and the creamware pulsar card,I
would really like to see your perspectives
on the issue.

Cheer's

Post by **garyb** » Sun Jan 30, 2005 5:12 pm

definitely a case/cooling problem, not a prescott one.

ajcurtis · Post by **ajcurtis** » Mon Jan 31, 2005 7:31 am

Are u guy's currently using Prescott cpu's
in your system's,and if so,what are your
Temperature stat's??

I have 3 case fan's operating,1 90mm +
1 80mm at the back of the case exhausting
the heat and also another 80mm fan at the
front of the case pushing air towards the
back.
And my PSU is also a dual fan model.

Do u think putting a 120mm case fan up
the front of my case instead of the 80mm
fan is going to bring the system temperature
down on hot days?

I'l also note that it's only on hot day's
like 28 degree's and above-that's when
I have Sys Temp problem's!

cheers

alfonso · Post by **alfonso** » Mon Jan 31, 2005 10:06 am

So definetly a temperature issue...hot days are a problem, if the machine was in a conditioned room would be much better. 28°C is quite nasty for humans too. Consider that also Scope dsp chips are hot.

Well, you have the fans, but is there enough room in front and in the back of the computer for a decent airflow? Because if air in the room gets warmer and warmer....

ajcurtis · Post by **ajcurtis** » Thu Feb 03, 2005 1:34 am

(Mmm thats quite cool for passive cooling,the
quiteness in ur room/studio must be bliss".)

I'm really unsure as to whats going on with
my machine,last night we had a very cold night here in melbourne.Once my pc had warmed
up the System temp sat around 25-26 degree's celcius and the cpu around 35,I loaded a song
into logic audio and loaded up a Disco discovery vsti on an instrument track and started the sequencer and within 4-5sec everything froze up!

The other day I disabled PCI Bus Master in the bios and everything seemed to run better and no freeze up's until the 1 I mentioned above yesterday,but the disco vsti usually
runs fine on my machine.

I've now resorted to disabling Hyper-Threading in the bios and then see if this
fix's the issue?
Since disabling Hyper Threading,the cpu Temp has gone up about 12 degree celcius!!
Is this normal??

My motherboard is suppose to support prescott cpu-it say's it does in the "manual",but the board is about 1 yr
old now.A popular local computer shop in
my area said that some manufacturers were
saying there motherboards supported Prescott but they really don't support it!Is there any truth to this??

My board is a MSI 865PE(MS6728)neo2 (intel chipset).

Post by **garyb** » Thu Feb 03, 2005 2:19 am

although high temps will certainly cause freezes, most of the freezes i have seen are either from midi feedbackloops, controllers that transmit active sensing, irq sharing and faulty vsts.

maakbow · Post by **maakbow** » Thu Feb 03, 2005 3:07 pm

sounds like 38 degrees is cool for a prescot...would sugest that error is caused by something else

Post by **hubird** » Thu Feb 03, 2005 10:50 pm

.......... ' Sorry, but it is low temperatures that causes freezes '

mr swim · Post by **mr swim** » Tue Feb 08, 2005 5:10 pm

I've been trying to work out the answer to this all day ! Any ideas ? ...

Putting your fans in 'serial' shouldn't make any difference ...

Imagine you have two case fans working in parallel at the back of the case (say the PSU and a case fan). They create a negative pressure inside the case which pulls air in from the front.

Now, putting a fan at the front of the case will do what, exactly ?

If the fan is 'pushing' air into the case at a slower rate than it is being 'pulled' by the rear fans, then its own motor will effectively either do nothing, or in fact SLOW DOWN air intake. Either the fan will itself just be being rotated by the negative pressure being created from the rear fans (and effectively not its own motor), or the motor will be holding air back.

However, if the fan is pushing more air into the case than is being pulled in by the rear fans, then this makes the rear fans effectively redundant - a positive pressure in the case will force air out the back regardless of the action of the rear fans.

So (as long as your case is good) you should never need to have front case fans. It's just a waste of power and noise.

Of course this wouldn't negate the case for having a fan pushing air specifically at your hard-drives, for instance. But it is an interesting general thought.

Is it right ?

W

valis · Post by **valis** » Tue Feb 08, 2005 6:32 pm

No.

One that idea requires that everything be airtight BUT the fan inlets and outlets which isn't the case at all. All seams around the case, the front panels and even floppy/optical drive controls will 'leak' a lot more than you think.

Two, the biggest benefit in positioning fans carefully isn't overall positive or negative pressure but rather the ability to direct the airflow through the case so that you can insure relatively good airflow where its needed (in conjunction with clean wiring and careful positioning etc). This is in addition to targeting specific components with additional airflow (drives, your gpu etc).

Arstechnica or Aandtech or someone recently did a study on current Atx cases versus the Btx standard that Intel is currently trying to transition to, comparing overall airflow etc. I've read many other articles with detailed heat imagery but since this was the most recent it is also the most applicable. If you're interested and can't find it I can dig out the link.

BingoTheClowno · Post by **BingoTheClowno** » Wed Feb 09, 2005 6:51 pm

My system runs at around 42C and both, Scope and Pulsar, cards run smoothly.
(dual Xeons X 2.8 GHz)

See if maybe the CPU fan is not blowing directly on the card.

<font size=-1>[ This Message was edited by: BingoTheClowno on 2005-02-09 18:51 ]</font>

mr swim · Post by **mr swim** » Thu Feb 10, 2005 2:39 pm

@ Valis

Points entirely taken. Just a little theoretical oddity - IF your case was fully sealed except for the fan points, then I still think serial fans would be unnecessary. Of course, specific directional fans are a different matter.

W