Just upgraded & rebuilt 2 machines in network.

1: amd 64 3200 - Processor Temp 30.5%, Processor (diode) 26%, Main Board 31%, Power 36%, HD's 28%.

2: amd 64 x2 3800 - Processor Temp 37%, Core 1 49%, Core 2 49%, Main Board 94%,
Power 42%, HD's 48%.

10 minutes ago, after an auto update, 2 rebooted, got correct bios code, but nothing. On checking cpu, fan not rotating. Switched off, checked hsf & cpu, looked okay so cleaned & reapplied paste. Rebooted, system strated, temps the same except mainboard up 2% to 96%.

Shut down system - Ideas anyone, because I'm at a loss as to why this is happening.

[edit] no OC'ing on any system [edit/]

On "2" that mainboard temp is v high, is heat sink on northbridge, or equiv, there seated properly etc.
I've also noticed on couple of rigs i've built that fitting better hs/fans on cpu can rob airflow to from critical components, like northbridge and voltage regulators. The heatpipe ones with vertical radiator for instance. Fitting side panel fan in appropriate place and/or better rear panel fan can help.

On one older AthlonXP mobo, donated after upgrade, I did have to go to better northbridge hs with fan to reduce mainboard temp. After that it was overclockable, it hadn't been before.

Thanks, will look into it & let you know how it turns out.

Just ordered the Thermalright cpu and mosfet coolers for me quaddy. I think it's gonna be a bust, but I gotta try to find out if it's the chipset or the cpu that's the limiting factor here.
And the kitties say..............Lordy, but Dad is an obsessive bloke, eh?

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

No 2 still still showing 94% Main Board & ALSO now showing HD 1 @ 253%.

I know cpu & hsf installed correctly as it still showing steady temp.

Weird!

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No 2 still still showing 94% Main Board & ALSO now showing HD 1 @ 253%.

I know cpu & hsf installed correctly as it still showing steady temp.

Weird!

253 degrees Celcius? Should be smoke in the vacinity.

Here's my mobo/cpu temps:
AMD64 2800 Clawhammer 38/53
AMD64 3700 Sandiego 38/48
AMD64 X2 4800 Toledo 33/48
AMD64 X2 5200 Windsor 38/51
AMD64 X2 6000 Windsor 41/48

All at 100% cpu usage.

yours has a problem.

Here's my mobo/cpu temps:
AMD64 2800 Clawhammer 38/53
AMD64 3700 Sandiego 38/48
AMD64 X2 4800 Toledo 33/48
AMD64 X2 5200 Windsor 38/51
AMD64 X2 6000 Windsor 41/48

All at 100% cpu usage.

yours has a problem.

[Edit] Even now, PC Wizard & Speedfan reporting HD1 @ 253%c. Power, CPU temps seems steady enough except for that mb. HD2 reported as 42%. [Edit]

Agreed. I think it's the mb as all kit was working previously on an Asus A8V-VM SE. Only reason for upgrading was for extra slots, both ram & pci.

Looks like another mb for rma'ing.

my AMD64 X2 4800 has A8V-VM mobo.

my AMD64 X2 4800 has A8V-VM mobo.

Teriffic boards, but finding it difficult to get hold of. I should have used something different for last 2 customers, both were A8V-VM.

A8V-VM socket 939, $45 instock IMO it's a bad OCer (as are most microboards with built in video)

Great thread gang!

Lots of good info to look into. I just got back from a trip so I wasn't able to read the posts until today. I will look into the airflow question and possible internal case temps. One of those nifty IR temp readers comes in quite handy. :)

When I got home last night I checked the rig and it is still running about 65-67C. Didn't look at the MB temp. I tried removing the side case to see if larger exposure to cool room air would help. No dice. Temp remained stable. That leads me to believe the internal temps are not much of a factor here. There is also a large vent in the top of the case and an 80 mm fan. The vent is probably at least an additional 80 mm in size. It's odd shaped, so I cannot put another fan in.

As I said before, this is a Thermatake Armor tower case. I have a 120mm fan in front blowing over the dual SATA 160 GB hard drives, a 120mm fan in the rear in line with the CPU cooler, 80mm fan in the top and the PS has a 120mm blowing out the back. The air exiting the top is only slightly warm. Air from the 120mm fan in he back is a little warmer, but no alarmingly. There is more heat coming from the power supply. I guess that is expected. I don't remember the brand, but maybe it is suspect too. I have some more 120mm fans that I can install in the front of the case, but cannot get any more in the back to help keep the flow laminar.

My QX6700 arrived while I was gone, so hopefully I can get that in to see what happens. The other choice is to see if some other coolers work to keep temps low. I will look seriously at the ones mentioned in this thread. I will also check the MB condition (i.e. caps near the CPU) to see if something else is gone south. I hope not, I really like this board and I am looking forward to playing with some OC on the quad. =:-D

More later when I get some info. Thanks for sharing your experiences!!!

IROC

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No 2 still still showing 94% Main Board & ALSO now showing HD 1 @ 253%.

I know cpu & hsf installed correctly as it still showing steady temp.

Weird!

Actually, that's nothing to worry about. What software are you using to check the temperatures?

Several times I've seen temps be way off on a motherboard. I can't explain why, but I've sometimes been able to work around it. For example, on my motherboard I had to find the secondary sensor controller to get the proper CPU temp and fan speeds. It's trial and error...just look for values that make sense. Also, you could use the BIOS temperature screen if you have one.

Just upgraded & rebuilt 2 machines in network.

1: amd 64 3200 - Processor Temp 30.5%, Processor (diode) 26%, Main Board 31%, Power 36%, HD's 28%.

2: amd 64 x2 3800 - Processor Temp 37%, Core 1 49%, Core 2 49%, Main Board 94%,
Power 42%, HD's 48%.

10 minutes ago, after an auto update, 2 rebooted, got correct bios code, but nothing. On checking cpu, fan not rotating. Switched off, checked hsf & cpu, looked okay so cleaned & reapplied paste. Rebooted, system started, temps the same except mainboard up 2% to 96%.

Shut down system - Ideas anyone, because I'm at a loss as to why this is happening.

[edit] no OC'ing on any system [edit/]

On "2" that mainboard temp is v high, is heat sink on northbridge, or equiv, there seated properly etc.
I've also noticed on couple of rigs I've built that fitting better hs/fans on cpu can rob airflow to from critical components, like northbridge and voltage regulators. The heatpipe ones with vertical radiator for instance. Fitting side panel fan in appropriate place and/or better rear panel fan can help.

On one older AthlonXP mobo, donated after upgrade, I did have to go to better northbridge hs with fan to reduce mainboard temp. After that it was overclockable, it hadn't been before.

Thanks, will look into it & let you know how it turns out.

Just ordered the Thermalright cpu and mosfet coolers for me quaddy. I think it's gonna be a bust, but I gotta try to find out if it's the chipset or the cpu that's the limiting factor here.
And the kitties say..............Lordy, but Dad is an obsessive bloke, eh?

Think that's bad MSattler? I shut down PC1, A day or so back to do just a simple dust cleaning and the bunnies were there in force too(Heatsink shroud removed and replaced and the front faceplate of the case too, nothing else). Put the PC back together and although the hdd, dvd/cd drives, and the fans spun up, The PC wouldn't, I didn't touch any cables or ram or even the cpu, But I did have to remove the ram and replace the 2GB I had with 1GB of ram before It would start and then I found My 150GB Raptor has a problem, The sata data cable has a part of the data connector broken off in It, The gold fingers of the circuit board of the data connector are still attached to the drive of course and so I moved the drive and carefully reconnected the cable and of course I had to do a repair install of XP x64 too and now I have 3GB of ram installed to boot, I've repartitioned the D: drive(250GB Seagate) into a drive D: that is the same size as the Raptor and a 93GB drive G: so that I can clone the drive to D: so that I can RMA the Raptor to WD and get a replacement, It's not like I did anything to make this happen, I just unplugged the cable and It took a second for It to register on My mind as where'd the sata connector go? Then I noticed the cable had something in It and It hit Me. So once the drive goes back, the cable becomes junk as how does one get the piece of circuit board out of such a small space? Even My thinnest tools wouldn't extract that, About the only thing that could possibly fit would be a sewing needle of a certain size and It still couldn't grab the junk and pull It out.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

No 2 still still showing 94% Main Board & ALSO now showing HD 1 @ 253%.

I know cpu & hsf installed correctly as it still showing steady temp.

Weird!

Actually, that's nothing to worry about. What software are you using to check the temperatures?

Several times I've seen temps be way off on a motherboard. I can't explain why, but I've sometimes been able to work around it. For example, on my motherboard I had to find the secondary sensor controller to get the proper CPU temp and fan speeds. It's trial and error...just look for values that make sense. Also, you could use the BIOS temperature screen if you have one.

Found the problem. Thanks WinterKnight. M/B is a Foxconn 6150K8MD & both northbridge & southbridge heatsinks are actually attached with spring clips holding them in place. Only a guess, but I think that the northbridge heatsink came loose in transit. After finding the problem, decided to completely strip system down, including case & throughly clean. Also attached an extra fan & temps now ok.

Only problem remaining was that both hard drives became unaccessible no matter what I tried, so only a complete re-format & re-installation would get it back up & running.

All that remains is to install everything back the way it was.

I did have back-up images from True Image 10 & Ghost, but these kept returning with file corrupt errors.

Ah well, another weekend wasted.

Once again, thanks very much WinterKnight.

Hardcore OC-ers know that OC decreases the life of a CPU. I'm afraid your Pentium D is on its last legs. I can't remember the physical reason for it, but I think with Google searching you could find out. You'll need to replace the chip soon.

Its known as electromigration, and I have seen a couple of CPUs slowly degrade in OCability due to its effects. Sadly, my AXP2000+ @ 2200mhz is starting to feel it :(

Anyway, off topic I know, but I only visit these forums like once a week lol. Im a little behind in the posts >.>

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Its known as electromigration, and I have seen a couple of CPUs slowly degrade in OCability due to its effects. Sadly, my AXP2000+ @ 2200mhz is starting to feel it

Actually, electromigration failures are far more likely to be instantly catastrophic in their observable performance effects than not.

Gradual performance degradation failures are more likely form other mechanisms--such as threshold voltage shifts and several other things associated with the transistors and not the wiring.

The cheery confidence displayed by some overclockers that simply assuring a good die temperature is full protection from OC bad effects is misplaced. Some of the degradation mechanisms are primarily voltage dependent, with little temperature effect, while some of the other mechanisms have very strong temperature dependence. Still others respond primarily to temperature cycling.

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Actually, electromigration failures are far more likely to be instantly catastrophic in their observable performance effects than not.

Gradual performance degradation failures are more likely form other mechanisms--such as threshold voltage shifts and several other things associated with the transistors and not the wiring.

The cheery confidence displayed by some overclockers that simply assuring a good die temperature is full protection from OC bad effects is misplaced. Some of the degradation mechanisms are primarily voltage dependent, with little temperature effect, while some of the other mechanisms have very strong temperature dependence. Still others respond primarily to temperature cycling.

Agreed, and the bottomline is there's a reason why the design and test engineers at the semiconductor companies and equipment manufacturers rated the absolute and recommended limits on the operating paramenters for the devices the way they did. IOW, they don't just make this stuff up for laughs.

Exceed them excessively at all, and/or moderately for extended periods and all bets are off when it comes to stability, reliability, and device service lifetime. That's one reason I'm always a little leery of pushing a $1200 chip 25% or more over it's ratings. ;-)

Alinator

Its known as electromigration, and I have seen a couple of CPUs slowly degrade in OCability due to its effects. Sadly, my AXP2000+ @ 2200mhz is starting to feel it

Actually, electromigration failures are far more likely to be instantly catastrophic in their observable performance effects than not.

Gradual performance degradation failures are more likely form other mechanisms--such as threshold voltage shifts and several other things associated with the transistors and not the wiring.

The cheery confidence displayed by some overclockers that simply assuring a good die temperature is full protection from OC bad effects is misplaced. Some of the degradation mechanisms are primarily voltage dependent, with little temperature effect, while some of the other mechanisms have very strong temperature dependence. Still others respond primarily to temperature cycling.

Displaying cheery confidence whilst I bump up the vcore on my quad again........

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Displaying cheery confidence whilst I bump up the vcore on my quad again........

LOL...

We all know you thrive living in the danger zone when it comes to overclocking your machines. :-)

OTOH, I don't recall you complaining too much when you let the smoke out of something as a result. ;-)

Alinator

Displaying cheery confidence whilst I bump up the vcore on my quad again........

LOL...

We all know you thrive living in the danger zone when it comes to overclocking your machines. :-)

OTOH, I don't recall you complaining too much when you let the smoke out of something as a result. ;-)

Alinator

Naw, no complaints, mate. But I have never let the smoke out of a cpu...it's just the mobos than can't take the stress now and again.......
And the kitties display cheery confidence......

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

Just upgraded & rebuilt 2 machines in network.

1: amd 64 3200 - Processor Temp 30.5%, Processor (diode) 26%, Main Board 31%, Power 36%, HD's 28%.

2: amd 64 x2 3800 - Processor Temp 37%, Core 1 49%, Core 2 49%, Main Board 94%,
Power 42%, HD's 48%.

10 minutes ago, after an auto update, 2 rebooted, got correct bios code, but nothing. On checking cpu, fan not rotating. Switched off, checked hsf & cpu, looked okay so cleaned & reapplied paste. Rebooted, system strated, temps the same except mainboard up 2% to 96%.

Shut down system - Ideas anyone, because I'm at a loss as to why this is happening.

[edit] no OC'ing on any system [edit/]

System 2 has now been running continuously for 9 hours. Temps are:
33/38/38/94/23/44/54 (HD2).

Have 120mm Fan intake, 120mm exhaust, 80mm top cooling fan, 80mm side fan + 80mm intake fan on underside of psu.

No hiccups so far, in fact system running a heck of a lot smoother than yesterday with no unexpected shutdowns.

Could it be a faulty mb sensor?

Is it anything to worry about?

Okay Crunchers!

I installed the QX6700 tonight. What a pain in the butt to flash the BIOS. I had to go to the store to buy a floppy drive and some diskettes! Remember those? I thought those PC monkeys at the store were going to die laughing. They asked me what it was for and I said I needed it to flash the BIOS. That stopped them laughing, 'cause I asked them how they do it. None of these PC genius' had ever flashed a BIOS. I'll bet they didn't even know what it is.

Anyway, it took some time, but I got the machine back up and it's running. I am using Asus Probe to monitor the system. Same Zalman heat sink and some new paste. Here's the status.

Vcore=1.21V
+3.3=3.25V
+5=5.09V
+12=12.04
CPU temp=39C (28C/82F lower temp)
MB temp=41C
CPU fan=2450 RPM

4 cores crunching along. So, the PentD was taking a powder. Guess I won't be able to sell that one at a discount price. :)

IROC

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