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prescott runing 65c idle @ 1.5v, how to decrease the temp?

B

blue_heart71

Limp Gawd
Joined
Dec 21, 2003
Messages
212
a friend of mine bought retail prescott 3.0 478 and intel motherboard D865GBF, nothing overclocked, the computer shop who sold him the cpu and motherboard installed the cpu for him.

the voltage is 1.5v and the heat idle is about 60-65c.

2 questions:

- is the voltage ok or he can lower it?
- can we change the retail fan and buy another good fun to fit it on the retail heatsink? any suggestions for fans from frys?
 
1) As far as I know the cpu voltage should be 1.4v, and I have a precott 478 so thats from personal experiance.

2)The best bet would be a thermalright XP90 or XP120 with the Socket 775 adapter, a good fan(panaflo) and some artic silver 5. Becareful with the XP120 though, make sure his board supports it. Changing the fan on the retail heatsink would be a pain in the a$$ if you could even get it to work
 
i dont know it is reading correctly or not, installed active monitor from intel site and the temp reading still the same.

what do you guys think about zalman cnps7000 alcu heatsink and fan? the price looks good and i think it is available @ frys, but not sure if it will fit the mobo.
 
if it reads that hot in the BIOS and in Windows maybe the heatsink isn't even contacting the processor can, and if it is maybe the fan isn't spinning fast enough or is damaged. you should physically inspect it and reseat the heatsink with so arctic silver.
 
Those prescotts scare me everytime i hear a thread like this. I'm still looking for an upgrade for my 2.8c. I was thinking about a 3.4 prescott but now i think i might try and find a northwood. :(
 
when I upgrade, I'm going to the AMD side of the house. Intel just seems to have some problems with their R&D lately (the -IMO- failed 90nm process , the Presshot, etc). AMD just seems to be kicking some serious ass since the A64's came out.

But when I do upgrade, just like anything else, I'll see what side has the better stuff and go that way.
 
I've the 3.0E running stock (put it back just for this): 35-7C idle (open air case, zalman cnps-a 7000cu

however, I feel that temp is a little low (possible sensor error? msi pt 880 neo)

my voltage is 1.3875 stock. that is definately what you want with a 200mhz fsb.

i think the zalman cnps7000alcu will do nicely. I ran it 'till my friend swapped be bacause he cut off his outer screw holes (his board for his 2500+ m wouldn't fit ith them but his athalon64 needs them, so we swapped)

ran about 37-9 or so with the alcu, I wholeheartedly reccomend it. you definately shouldnt feel compelled to get the 7700 though, that thing is a beast, and doesn't fit on a lot of things (120mm fan :eek: )


ps: oh and I would defenately reccomend using some artic-silver5 with the hsf, no matter if its stock or not. thin coat, take you're time, it helps.
 
i think in some cases yes the precott is hot, mainly becuase of the lack of airflow. and stock cooler. ( and thermla paste.. )

anyway one thing i ssee in these threads is th orginal poster doestn post his/her room temperatre.. things liek that. ARE YOU LVIING IN A DESERT AREA?? if so please move.

ok anyway, your prescott vcore shoudl be at 1.35-.1.4 area, 1.5 is very high if you havnt even OC'ed, and problaby is an additive to your high temp.

also you would problaby need to get a aftermarket cooler if you havnt done so, from what i see the stock cooler shoudl be fine for all prescotts with as5, that stock thermal pad thing doesnt work at all..

anyway yeah a stock cooler on an asus p4c800 ( d0 chip ) shoudl leave your temps at ~35c idle, and close to 50 load.

when i see people with high 60's as idle temps, i just ask myself what the heck.

leave your case side open, try to resit the heatsink make sure its getting contact with the chip.

dont put too mcuh thermal paste, just spread it around in the middle with something ( not your finger , unless its in a bag )


uh yeah. try to get the voltage lowered, and make sure you have PROPER air flow .. IF YOU GOT WIRES ALL OVER THE PLACE, CLEAN IT UP, IF YOU HAVE 2 FANS ONLY, PUT SOME MORE HIGH QUALITY LOW NOISE ONES IN! ( UNLESS YOU DONT CARE ABOUT NOISE THEN IN THAT CASE PUT 2 DELTA FANS INTHERE AND HEHEHEHE ok sorry im just out of it right now, i hope you fix your problem END PARENTHESIS good bye

EDIT: oh after rereading your first post i am assuming you dont know how to do anything i just stated above? in that case try to find someone who does, that guy might have put it on pretty crappily or not used proper pasting methods, stock cooler shoudl run fine on 478 cpu's. make sure you get some as5 though, if you dont care, a good cooler to get is the zalman coolers ( all copper, 7000 or 7700 ) anyway good luck.
 
thanks guys.

first of all, i havent inspected the machine yet, i live 2 hours away from him but visiting him this teusday and take care of everything since i am well aware of as5, case fans, case ventelation stuff

i think we will go with the zalman 7000 alcu, but there is one point about the thermal paste, the zalman comes with thermal paste, how different will make using it instead of as5?

currently there is no case fan installed, so i asked him to open the side panel and it decreased the temps about 4c, however, need to see the case to decide how fans i can install, but rare fan is definitly must also will try to instal intake fans.
 
great, hm the stock zalman cooler shoudl do well if you dont want to spend money on as5, but the as5 of course will do much better than the stock paste.

anyway, hope you solve the probelm!
 
Cant go wrong with an Athlon 64, my 3400+ idles at 36c at load it's 44c(Sadly my Prescott is quite a bit hotter ) And when I OC (with stock voltage) to 2.7ghz its slightly warmer(39c/50c). And boy is it fast, my Prescott 530 @ 3.75 Ghz can barely keep up. Any who...the XP90 looks like a great HSF, am considering getting it (hmmm wonder if I can hit 3.0ghz/4.2ghz?)

BTW, anyone on the fence between a P4 or A64, get the A64. Take it from someone who owns both, the A64 is faster and cooler, thankfully my Prescott isn't too hot but I would love to hit 4.2 ghz with it :)
 
p4c2.jpg

That and a 92mm tornado fixed my pressy temp problem LOL

Just incase any one wants to know..thats a 3.2e @ 4.4 under there....
 
liquidtrance123 said:
Those prescotts scare me everytime i hear a thread like this. I'm still looking for an upgrade for my 2.8c. I was thinking about a 3.4 prescott but now i think i might try and find a northwood. :(
Click to expand...

I was in the same boat. Had a 2.8 (533mhz bus) P4 and wanted more speed. Sooo... I picked up a 3.4c and couldn't be happier.

It does 3.85ghz on most days (and 3.75 on warm days).

I'm using a crappy Koolance Exos setup too
 
Your problem is most definitly voltage. I can pick up almost 10 degrees C on my prescott at the same speed by changing the voltage from 1.3875 to 1.55. That's idle temps.
 
do you guys know what is the different between
zalman cnps 7000 alcu vs zalman cnps 7000A alcu vs zalman cnps 7000B alcu ???? cant decide which is the one we need to use and there is price different between them.

however, the cpu core temp came out to be 1.35 and not 1.5, and last night he told me that the temps under normal use never passed 50 where the other days it was easily passing 60.

also active monitor program form intel for reading the temps showing system temps under zone one idle 42c and under load about 50c and zone 2 temp about 38, what does system zone 1 is reading? northbridge temp? and zone 2 case temp? however the probelm of high system zone 1 temps stabled when the temps didnt pass 50 last night.

aksed to use mbm5, but mbm5 isnt reading system zone 1 temp.

also intel active monitor reading the voltages properly while mbm5 reading the same voltages except the 3.3v reading it at 1.9v

dont know whats going on.
 
prescotts are warm, but not THAT warm!
Try picking up some AS5, and apply it.
If that works, it's a $13 fix, if it doesn't work, you need a new heatsink :cool:
 
blue_heart71 said:
do you guys know what is the different between
zalman cnps 7000 alcu vs zalman cnps 7000A alcu vs zalman cnps 7000B alcu ???? cant decide which is the one we need to use and there is price different between them
Click to expand...

there should only be A and B, As are an older model, so chances are you'll go with a B. It was just a revision to make it more efficent/quieter or somthing. I think the B also comes with a second-gen FanMate, whereas the A came with the first model. Not big enough to warrent a cange of model, but a small change all the same. B is, in theory superior anyway, On Xoxide.com there is a $5 diff between the two. The A and B shouldn't have much temp wise between them, I'm not sure if you could even tell the diff.

I'd say go B (you can even get it with blue LEDs and clear fan blades at Xoxide, and for the B, its even cheaper haha)
 
went to frys today and bought as5 and the 7000b alcu, will install it with case fans on teusday hoefully and will let everybody know.

by the way, is active montior from intel is good and trusty? or we can use mbm5 instead?
 
BossNoodleKaboodle said:
maybe thats not reading the right temp. my 3.0E runs at about 35 idle with the stock cooler and AS5.
Click to expand...

let guess, you have an asus motherboard. if you, dont believe the temperature readings. they are bs on asus socket 478 mainboards. i have an asus p4p800 that read the cpu temp at 1C higher then ambient. i know thats total bs. same computer with cpu and cooling reads the temps almost 10C higher using an abit mainboard.
 
liquidtrance123 said:
Those prescotts scare me everytime i hear a thread like this. I'm still looking for an upgrade for my 2.8c. I was thinking about a 3.4 prescott but now i think i might try and find a northwood. :(
Click to expand...

Good luck finding one. I found 1 on ebay and it ended up going for $387!!!!!!!
 
Nexx said:
let guess, you have an asus motherboard. if you, dont believe the temperature readings. they are bs on asus socket 478 mainboards. i have an asus p4p800 that read the cpu temp at 1C higher then ambient. i know thats total bs. same computer with cpu and cooling reads the temps almost 10C higher using an abit mainboard.
Click to expand...

my 3.0e runs at about 35C idle (right now 45, but I have seti@home going full speed in the BG)

I have a MSI PT880, no ASUS board. Its possible my board is messed up too, but my case (ambient) temp is generally about 25 anyway.
 
Nexx said:
let guess, you have an asus motherboard. if you, dont believe the temperature readings. they are bs on asus socket 478 mainboards. i have an asus p4p800 that read the cpu temp at 1C higher then ambient. i know thats total bs. same computer with cpu and cooling reads the temps almost 10C higher using an abit mainboard.
Click to expand...

Asus reads about 5 to 7C cooler than normal and Abit reads about 8 to 10C to high. I've owned both as well as Gigabyte, MSI, ECS and Aopen to test the same Processor and Heatsink in each one. Even test tested it onther boards at my bud's places. Test processors were 1.7 Willy and 2GHz Northwood A. The not Abit and Asus boards were pretty consistant, giving temps within 2C of eachother.

Prescott *can gain 5C for every .05 voltage added. Some folks say that's only 3C on their rig.

Never stay in the BIOS too long. Processor Cool Down routines, Halt states, and etc. are widows based processors can over heat while the BIOS. I know folks who let their un protected (no thermal shut down) and overclocked AthlonXP die. BIOS temps will be higher for that reason.

I learned a long time ago to never shut down an overworked rig while it is still hot.

I thought of going AMD as well but for the first time, IMHO, they cost too friggen much. I run games slower than my buddies Athlon64 FX rigs but the processor alone costed them more than 75% of my rig, [canuck accent=Donnie27] Oh geesh eh![/canuck accent] Same goes for the P4EE forgetaboutittttttttttt! I run more Audio, Video and Photo apps.

So my trusty old 2.6C at 3.26 or 3.46 (depending on winter/sumer) will last me until 6xx or Smithfield fits my needs.

I like MBM5 and yes Abit is FOS their stuff is out of whack. I belong to their forums and posted there. ;) Bios 27 still hasn't fixed this proble.

Donnie
 
update

installed the 7000b alcu and it didnt make any different, the as5 applied according to the instruction of as5 site.

had to remove the gf2 graphic card and use onboard graphic controller since the gf2 was generating heat. also moved the ram from bank 0 to bank 1 and disconnected the fan mate too and got about 200-300 rpm boost and now it is 8-9c less with case side panel open and no case fan at all, and when closing the side panel, cpu temp increases about 5-6c. when case is open and cpu idle for 1-2 mintues things look good as the temp is 40, but searching the net and light stuff here and there will up the temp upto 46 case open and 51 side panel on, when case was closed and prime was running for about 45 minutes the temp reached to 66, but tried it with side panel off for 15 minutes the temp reached to 56

cpu temp changes up and down very fast, a small load on cpu even for 1-2 seconds changes the temp 3-4c

will buy 2x80 case fans tomorrow, one to fit it on the back panel and the other on the side panel after drilling it

where is the best position to fit the side panel fan? middle? or on cpu?

the results so far are disappointing and dont know whom to blame, is the cpu deffective? the motherboard maybe?
 
If it isn't locking up, don't worry too much about it. However, get some case fans in there to exhaust all that hot air.

Oh, and the 7000B version of the Zalman has more clearance around the base for things like capaciters and what not...it's also weighs slightly less, comes with a revised fanmat, and as stated, can be had with a LED fan.
 
sounds like its the case that is to blame. I'd say tidy your cables for better air flow, and yea the 2 80s will help, but i run 1x120 and 1x92, and have a open air case.

Have you turned the voltage down? I'd say attempt to boot it at around 1.38. 1.5 is too high.
 
blue_heart71 said:
update

installed the 7000b alcu and it didnt make any different, the as5 applied according to the instruction of as5 site.

had to remove the gf2 graphic card and use onboard graphic controller since the gf2 was generating heat. also moved the ram from bank 0 to bank 1 and disconnected the fan mate too and got about 200-300 rpm boost and now it is 8-9c less with case side panel open and no case fan at all, and when closing the side panel, cpu temp increases about 5-6c. when case is open and cpu idle for 1-2 mintues things look good as the temp is 40, but searching the net and light stuff here and there will up the temp upto 46 case open and 51 side panel on, when case was closed and prime was running for about 45 minutes the temp reached to 66, but tried it with side panel off for 15 minutes the temp reached to 56

cpu temp changes up and down very fast, a small load on cpu even for 1-2 seconds changes the temp 3-4c

will buy 2x80 case fans tomorrow, one to fit it on the back panel and the other on the side panel after drilling it

where is the best position to fit the side panel fan? middle? or on cpu?

the results so far are disappointing and dont know whom to blame, is the cpu deffective? the motherboard maybe?
Click to expand...

I second what "C1utCh" said, The voltage shouldn't need to be set that high while the default voltage should be 1.4V. Many are overclocked with only 1.5V.

Yes, some case fans are a must. Unless you have a room fan blowing in the case, you should get better hot or heated Air removal with the side panel being "ON" the case.

Donnie
 
first of all, thanks for everybody who tried to help.

after installing the zelman 7000b alcu +as5, and changing ide cable with the rounded one and sleeving power cables and installing one side panel 80mm fan and one rear 80 fan the ideal temp now is 39, medium load about 48, prime95 after passing 4 tests is 56c. room temp although not measured but it is not hot.
the temps of cpu and zone2 (as per intel active monitor) decreased about 10c at any level of use and this after doing all the above.

he spent about (without rounded cabels and sleeves which cost about $35) $70 on fans and as5, but he is happier now, as for his work (pro audio editing - home) temps wont exceed 50c, which i think is ok for prescot.

i agree with you about the case.

photo of the final setup is here
 
the voltage came out to be 1.375 and not 1.5, when i talked to him first time he told me 1.5 but he was reading another thing
 
right on then, sound like your situation is solved. 39 isnt bad at all.
 
agree, 39 is complete idel, even no mouse touch. but i think he is fine now.

thanks for your help guys.
 
blue_heart71 said:
agree, 39 is complete idel, even no mouse touch. but i think he is fine now.

thanks for your help guys.
Click to expand...

Nice work!

Donnie
 
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