i7 870 on Asus P7P55-M Throttling at 70C

[Redmint]

Trying to help a friend with his overclock but I'm a bit stumped. Running prime or Burn test his CPU seems to be throttling (dropping to 1.6GHz) at about 70C, as far as I was aware these chips aren't supposed to throttle until 99C?

Things we've done:

Update BIOS
Disable Speedstep/C1E etc

The motherboard doesn't have the most advanced overclocking options, however it has all the basics and I can't see why it should be throttling so early.

We're at 1.32 Vcore, 1.65V on the RAM (OCZ special ops). I've already looked around on the web for solutions but none of the suggestions seem to have helped so far. Using 22 multi and 182 BCLK.

Also please don't point out that the Tcase Intel spec for the chip is 73C, The core temp is not the same as the Tcase temp, Tcase is nowhere near what's supposed to be the throttling temp.

edit: tried using Realtemp, HW monitor, Coretemp, Speed fan to monitor temps, all say the same.

 

[silversurfer]

Which motherboard is it. The bios or motherboard settings would seem most likely. Also 70c is the max temp on any core or the average?

 

[Redmint]

Asus P7P55-M (as in the title) 70C on any core.

edit: tested with 1.4V core and still the same problem.

 

[dazzerd]

Temp is not the only thing which can cause it to throttle; if the board senses the chip is pulling too much power it will also throttle the cpu. On some boards you can alter the limit when this kicks in too.

Have you checked the vcore using cpuz?

If this isn't the case you may have a faulty limiter or maybe the board has a very conservative limit.

 

[maraxion]

Redmint
I tried finding a way to contact you on the forum but couldent find any, so sorry for writing in this ancient thread.
But I was curious if you eveer found a solution for this? i have the same cpu and motherboard with the same throttling issue at around 70 degrees.

 

[kwasior500]

It is power delivery related, i burned mine p7h55 i7 @ 4.1 stable with throttlestop yesterday, so dont make my mistake

 

[Cyber-Mav]

Use hwinfo to find out why it's throttling. Is it due to temp, power, current, voltage, insufficient load, etc

 

[Yaayuh!]

Nice mecro, guys

 

[Cyber-Mav]

Nice mecro, guys

Wtf didnt realise it was that old @kwasior500 is to blame

 

[maraxion]

Redmint.
I see this thread is old, but did you ever find a solution to this strange 70C throttle? Have the same cpu and similare asus card( P7H55-M) with same issue.

 

[kwasior500]

Redmint.
I see this thread is old, but did you ever find a solution to this strange 70C throttle? Have the same cpu and similare asus card( P7H55-M) with same issue.

It is throttling cuz it is burning. Check your vrm, dont OC 8Threads on this

 

[pastymuncher]

It will be the motherboard vrm's overheating and throttling as they have no heatsinks to cool them.