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need some info on this cpu never had one before

206 views 6 replies 3 participants last post by  kaitlin4599 
#1 ·
ok so a friend of mine game me his old QS6850 CPU he also gave me an air cooler and a mobo below are pix of what i got from him. i need some info before i start to overclock this CPU.

#1 i need to know what the max temp is for this cpu some sites say 60 degrees celsius others say 70-80
#2 how well can this cpu reach a stable overclock of 4.0-4.5GHz
#3 is there a good overclocking guide for this cpu like a qx6850 specific or cdq specific oc guide?

edit almost forgot ram will be 2 2gb sticks of ddr2 ocz pc26400 ram sticks with ocz heat spreaders from the factory as well as arctic MX-2 thermal paste

also if i decide to water cool this cpu would this be a good AIO choice?

http://www.coolermaster.com/cooling/cpu-liquid-cooler/masterliquid-pro-120/




 
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#2 ·
CPU-World info - This says a maximum temperature of 64.5C. Given that you have a decent cooler for it, I wouldn't bother buying an AIO. The amount of money spent vs the cooling gains would be minimal and probably a waste for that old of a machine. Plus you would have to modify the mounting bracket for Socket 775. You may want to go over airflow in the case and possibly setting up ducts or shrouds to make sure cool air makes it to your cooler and heat leaves the case instead of the cooler recycling the same warm air and having temps get out of hand.

Given the high wattage, high stock FSB, low locked multiplier, and age, I wouldn't expect to get much beyond 4GHZ. If this is just a test to play around and get a benchmark then go for it! If you want it to run that fast and stable for any length of time then you might want to run a more conservative overclock. Old motherboards tend to die, particularly when overclocked heavily, so you may or may not get a ton of life out of it. I have a similar board still going, but several other similar boards have croaked on me over the past few years.

This Newbie Guide has a bunch of info that pertains to Core2. Any Core2 OC guide should work.

What is your intended use for the machine?
 
#3 ·
Quote:
Originally Posted by Kleer Kut View Post

CPU-World info - This says a maximum temperature of 64.5C. Given that you have a decent cooler for it, I wouldn't bother buying an AIO. The amount of money spent vs the cooling gains would be minimal and probably a waste for that old of a machine. Plus you would have to modify the mounting bracket for Socket 775. You may want to go over airflow in the case and possibly setting up ducts or shrouds to make sure cool air makes it to your cooler and heat leaves the case instead of the cooler recycling the same warm air and having temps get out of hand.

Given the high wattage, high stock FSB, low locked multiplier, and age, I wouldn't expect to get much beyond 4GHZ. If this is just a test to play around and get a benchmark then go for it! If you want it to run that fast and stable for any length of time then you might want to run a more conservative overclock. Old motherboards tend to die, particularly when overclocked heavily, so you may or may not get a ton of life out of it. I have a similar board still going, but several other similar boards have croaked on me over the past few years.

This Newbie Guide has a bunch of info that pertains to Core2. Any Core2 OC guide should work.

What is your intended use for the machine?
thanks for the reply at stock speeds on my T4 cooler at 100% load the temp reaches almost 65-70c so i may need to look at other options tim is mx-2
 
#4 ·
If it is getting that high at stock speeds and voltage then there is something very seriously wrong. Does it change drastically when you add or remove the case side panel? I have a Q6600 still kicking that is getting low 50's *C with an old Arctic Freezer 7 which should be slightly worse at cooling. That is overclocked a fair bit with some voltage added.

If you still have the hardware to attach that heatsink to other sockets then it might be a good idea to hold off spending any money on this system and look towards something newer. I would explore all avenues that cost little to no money to fix the temperature problem instead of buying a new cooler. You might be able to get a 2nd or 3rd gen i5 + motherboard for not much more than the cost of a decent AIO cooler.
 
#5 ·
Quote:
Originally Posted by Kleer Kut View Post

If it is getting that high at stock speeds and voltage then there is something very seriously wrong. Does it change drastically when you add or remove the case side panel? I have a Q6600 still kicking that is getting low 50's *C with an old Arctic Freezer 7 which should be slightly worse at cooling. That is overclocked a fair bit with some voltage added.

If you still have the hardware to attach that heatsink to other sockets then it might be a good idea to hold off spending any money on this system and look towards something newer. I would explore all avenues that cost little to no money to fix the temperature problem instead of buying a new cooler. You might be able to get a 2nd or 3rd gen i5 + motherboard for not much more than the cost of a decent AIO cooler.
i already have a hex core xeon build as my main system this one is just to toy with
 
#6 ·
Quote:
Originally Posted by Kleer Kut View Post

This says a maximum temperature of 64.5C.
That temperature spec that Intel published is measured at the geometric center of the heatspreader that covers the CPU cores. It is a useless number for most users unless a person plans to hack up their CPU with a Dremel and mount a calibrated temp sensor at that location. When significantly overclocking one of these, you will lose stability long before the core temperature gets anywhere near the maximum safe temperature so no worries.
Quote:
low locked multiplier
It is an Extreme processor. That means it has an unlocked multiplier. 4 GHz (400 MHz x 10) is possible. Anything much beyond that is not likely.

These Core 2 Quads consist internally of two separate Core 2 Duos. The interesting thing is that it is possible to run a different multiplier on each separate Core 2 Duo so you can have the first 2 cores running at one speed and the second set of cores running at a different speed. Have fun playing with your QX6850.
 
#7 ·
Quote:
Originally Posted by unclewebb View Post

That temperature spec that Intel published is measured at the geometric center of the heatspreader that covers the CPU cores. It is a useless number for most users unless a person plans to hack up their CPU with a Dremel and mount a calibrated temp sensor at that location. When significantly overclocking one of these, you will lose stability long before the core temperature gets anywhere near the maximum safe temperature so no worries.
It is an Extreme processor. That means it has an unlocked multiplier. 4 GHz (400 MHz x 10) is possible. Anything much beyond that is not likely.

These Core 2 Quads consist internally of two separate Core 2 Duos. The interesting thing is that it is possible to run a different multiplier on each separate Core 2 Duo so you can have the first 2 cores running at one speed and the second set of cores running at a different speed. Have fun playing with your QX6850.
thanks for the reply uncle webb i sent you a pm please reply to it when u have the time
 
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