Just wondering if CPU, MB , and case temperatures run about the same between the two in stock configuration and with overclocked ?Anyone ?

It used to be that AMD CPUs were hotter and would melt the motherboard if they overheated, but since Intel hit 3GHz, it's been going the other way... the new P4 chips in particular have huge power consumption, and I would be reluctant to buy one for that reason.At the moment I have a 3.06GHz P4, and that runs with a case temperature of about 30C, external CPU temp of 35-50C and internal of 69-72C: and it only hits 50C with the CPU maxed out running multiple threads under hyperthreading. But if I was building a new PC now I'd probably go Athlon-64 for lower power consumption, similar or higher performance and 64-bit support when Microsoft get around to releasing 64-bit Windows.

I have an AMD XP1800+ processor which runs at 1.53GHz. I'm having occasional hard lock-ups of my system, usually during some kind of full-screen video, but not always. I've suspected heat, but the CPU is running at about 45

"...there are five things sharing IRQ11..."SIX things. Yes, I can count! *:-*[table][tr][td valign=top]http://www.avsim.com/other/usaribbon.gif[/td][td valign=center]Bob "FlyBert" StilesAVSIM Moderator[/b][/td][/tr][/table]"Don't stall on me, I have to soar!"~Richard Harvey, 1/21/2003

IMO,the whole thing was an overblown issue trying to keep users from buying AMD products. Yeah,early AMD's could run hot if you had sub-standard cooling in your case. Go back and check out the first batch of Pentiums 10-11 years ago. They had major overheating problems.Bottom line is with processor speeds today you need to plan for adequate cooling. Most likely that will mean 2-3 or more case fans and a good fan for the heat sink. I've built several AMD machines and have yet to have any cooling problems.David

"IMO,the whole thing was an overblown issue trying to keep users from buying AMD products. Yeah,early AMD's could run hot if you had sub-standard cooling in your case."Sorry, but I know of far more Athlons that were fried due to poor heatsink installation that Pentiums, in a few cases the Athlons taking the motherboard with them: lack of temperature-controlled throttling was a major deficiency of the Athlons (but I believe they've now added it).Intel have traditionally been pretty good at handling that kind of 'stupid user error': even accidentally running my PII at 3.5v rather than 2.0v for a while didn't kill it.

"Sorry, but I know of far more Athlons that were fried due to poor heatsink installation that Pentiums, in a few cases the Athlons taking the motherboard with them: lack of temperature-controlled throttling was a major deficiency of the Athlons (but I believe they've now added it)."And I've known of far more Intels that were fried due to poor heatsink installation. But that's because I know far more people with Intel based computers than AMD. Both Intel and AMD have built circuits into their CPU's that will shut them down should they see too much heat. If a CPU creates too much heat it is more often than not a bad heatsink install that is the cause, not an issue with the chip or heatsink design.Intel has no magic secret for dealing with heat. Heat is a function of power... wattage. It is quite easy to design a heatsink to deal with the amount of heat created by a modern CPU. Both Intel and AMD are pretty good at adhering to this engineering.That being said, neither manufacturer goes much beyond what is required to deal with their CPU's heat. The "boxed" heatsinks they ship with their CPU's are not cutting edge (it's that cost issue), which is why the aftermarket heatsink business was born and continues to thrive. I recommend that any gamer should consider replacing their stock CPU cooler with one of the top quality choices available today.No matter what brand of CPU is chosen it's very important to keep the chip and system cool. Heat is the biggest killer of elctronics... keep them cool and they will perform better and live longer. Simple as that.Regards,Greg

"And I've known of far more Intels that were fried due to poor heatsink installation."I'd be impressed by someone who did manage to fry a Pentium in the last few years by overheating it, given the heat-throttling built into the chip. I've seen people swap heatsinks on P4s while they're running with no problems... try that on an older Athlon and you'll be lucky if you only fry the CPU.Either way it's a moot point these days, as Intel are the ones with the heat problems on new P4s.

But what about Bob's post above? He says his AMD is running at 45 c but he hears they can run twice that heat under load...Is that true ? That's pretty HOT given that 45C is 113 F so 90C would be 223 F !! And is that what is causing his "video" problems ? Seems his readings are either off, or it can't be a heat problem.UNLESS, it's only a heat problem with the video board ??

"He says his AMD is running at 45 c but he hears they can run twice that heat under load...Is that true?"I wouldn't run my system at 90C. I use a Thermalright heatsink w/ a quiet 92mm fan, and at an ambient room temp of 22C MBM shows my CPU diode at 31-32C. Under load (simming) my diode temp will increase to 44-45C.Anything over 60C on my system demands some serious attention. I wouldn't run my computer if I saw a CPU temp over 60C.Just my rules for my system,Greg

>But what about Bob's post above? >>He says his AMD is running at 45 c but he hears they can run>twice that heat under load...>>Is that true ? >>That's pretty HOT given that 45C is 113 F so 90C would be 223>F !! >>And is that what is causing his "video" problems ? Seems his>readings are either off, or it can't be a heat problem.>>>UNLESS, it's only a heat problem with the video board ??No,the 90C is the official melt-down temp of the Athlon. You don't want your temps anywhere near that number. I have an XP2100,it runs at about 41-43C during the summer months and about 37-38C during the winter.David

>Sorry, but I know of far more Athlons that were fried due to>poor heatsink installation that Pentiums, in a few cases the>Athlons taking the motherboard with them: lack of>temperature-controlled throttling was a major deficiency of>the Athlons (but I believe they've now added it).Yeah,fried because the guy's installing them didn't have a clue as to what they were doing. When someone fried an XP and you ask them what kind of thermal grease they used and how much. Their reply: Uhhh.... Huhhhh???Newer XP's and 64's have the temp throttle but I've built over 15 systems with the older XP's and never had ONE overheating problem. Several factors come in to play though. 1.I know what I'm doing when installing a CPU and heatsink.2.I use Artic Silver grease which can't be beat for thermal transfer.3.I use quality cases (mostly Antec) and quality fans.4.Monitor the CPU temps immediately when you first start the system.

Well, with my CPU temp currently at 48

>Well, with my CPU temp currently at 48

A bit more info would be useful, Bob.Motherboard?How is your memory configured (1 stick or multiple)?Driver versions for MB, video card, and sound?Better here to have too much info about your system than too little :-) .How are you measuring the temps? Is that 48C at idle, or with FS9 running?How many apps are running while you sim (weather, navigation add-ons, etc.). Any other system apps running while flying?Thanks,Greg