surely ambient temps matter?

[Cheeky Tosser]

I have followed with interest the multiple threads posted regarding CPU temps and the relative merits of different cooling fan and heatsink combinations. I place relatively modest demands on my PC with Internet browsing being the main activity so I have only invoked a very mild overclock on my E6300 by raising the bus to 315.

I usea Thermalright ultra 90 heatsink fitted with a 120mm Asaka amber fan running through a 7 volt resistor. I have replaced the power supply fan with an Asaka 80 mm amber anda variable pot so that the fan speed can be adjusted to quite slow speeds. The result is an extremely quiet PC which idles at a CPU temp of 35 degrees C.

The point to consider is that this idle temp is attained in a warm room with an ambient temperture of 23 - 25 degrees C. When the room is cooler the CPU temperature is correspondingly cooler - first thing in the morning the idle temp s lucky to see 25 degrees C.

Surely when considering the relative efficiency of heatsink and fan combinations reference should be made to the ambient temperature as other wise any comparison with other figures posted by members is meaningless.

 

[Brizzles]

Welcome , first poster.

I think the reason idle temps are irrelevant is as you have said.

Ambient / room temps obvoiusly vary from room to room and house to house.

Load/stress testing largely takes the average ambient room temp out of the equation and focusses on the actual cooling of the PC.


Mark

 

[Jokester]

Load temps are just as dependent on ambient air temperature as well, because ultimately it's the ambient air that's being used to do the actual cooling. Drop the ambient 10C and you can expect to see a similar magnitude drop in load temps.

Jokester

 

[Brizzles]

Load temps are just as dependent on ambient air temperature as well, because ultimately it's the ambient air that's being used to do the actual cooling. Drop the ambient 10C and you can expect to see a similar magnitude drop in load temps.

Jokester

Agree, i was being vague i was referring to the 23-25 degree room temp as the OP stated.

Yes, if you want to obtain the best temps your rig can achieve then about 4.00am in the loft in the middle of January would show good, but unrealistic all year round ,temps.

Ultimately , without the use of Pelts or Phase you will not drop below Ambient/room temps , whatever that temp is.


Mark

 

[Count Stex]

This is the main reason I toy with buying an air conditioner for the 'office' each summer.. anything like warm outside (20°C ish) means the office, with it's two PCs heads on up into the 28°C area, and all my overclocks have to be reined in.