Incorect result of DC test - Page 2

Miszka · 2014-07-04, 15:24

Quote:

Originally Posted by chalsall

Check this and this in about 24 hours to see if you should be nervous about your machine.

Thank you, so as I suspected, something is not so with my laptop.
Maybe this the case, but problems began as I began to use Prime95 v.28

TheMawn · 2014-07-04, 16:26

Yes, the new version of Prime95 has some new improvements to Haswell specifically, which makes it run both faster and hotter.

Check your notebook cooler. You would not be the first, nor the last, to accidentally have the fans pointed the wrong way.

chalsall · 2014-07-04, 18:05

Quote:

Originally Posted by Miszka

Thank you, so as I suspected, something is not so with my laptop.
Maybe this the case, but problems began as I began to use Prime95 v.28

Possibly correlative, possibly causal.

Learn how to strip your hardware down to the core components, and then blow them out with "liquid air" and other methods. Regularly.

My M65 laptop has served me very well. But I have many cats, and so I often have to tear her down and "blow her out" so she will keep performing for me.

tha · 2014-07-04, 21:38

Quote:

Originally Posted by Miszka

My computer is the laptop - processor Intel Core i7 4700MQ (Haswell).
I use him from 8 months.
The computer works on the special stand with additional ventilators (Notebook cooler) powered from USB
I start only 4 works (every core is used on 50%)
I start the works of the type - two cores LL and DC, remaining P-1 and ECM.
These heat up with tasks LL and DC more (90C - 98C) remaining (88C - 94C)
Such temperatures of the processor are from the beginning of exploitation.
Excuse me, but I know English faintly

Well, In Europe the summer is starting now, so that may be a contributing factor. Laptops have quite some restraints when it comes to cooling when compared to desktops. If you can open the machine easily (that is, when it is possible by design) you could check for dust on the fan and on the heat spreader.

Prime95 · 2014-07-04, 22:15

Quote:

Originally Posted by Miszka

problems began as I began to use Prime95 v.28

The new optimizations in v28 could easily add 5 or 10 degrees of heat.

Ken_g6 · 2014-07-05, 01:56

I made a thread on a different forum about how to keep a laptop cool running prime tests.

In summary:
1. I keep the lid open, keep it up on a stand to give it good air flow, and keep it in as cool a place as possible. (Currently my basement.)
2. Get ThrottleStop and turn your clock speed down until the CPU is cool enough.
3. See if you can find a fan control program that supports your laptop's fan(s). SpeedFan didn't work for my ThinkPad, but a program called TPFanControl did. If you can find such a program, you can turn up your fan speed and then maybe turn up your clock speed a bit.

VBCurtis · 2014-07-05, 05:37

Quote:

Originally Posted by Ken_g6

I made a thread on a different forum about how to keep a laptop cool running prime tests.

In summary:
1. I keep the lid open, keep it up on a stand to give it good air flow, and keep it in as cool a place as possible. (Currently my basement.)
2. Get ThrottleStop and turn your clock speed down until the CPU is cool enough.
3. See if you can find a fan control program that supports your laptop's fan(s). SpeedFan didn't work for my ThinkPad, but a program called TPFanControl did. If you can find such a program, you can turn up your fan speed and then maybe turn up your clock speed a bit.

I have an older i7 laptop, and using the win7 power management controls, I can set CPU to 90% of max speed as maximum possible speed. This causes it to draw 37W instead of 54W (I am not sure it's actually at 90% of max, but don't care). At 37W, my CPU runs at 65C after a fan blowout, while readings of 73C or higher mean it's time to take off a bit of case plastic (5 min) and blow out the dust. I clean it out every 3 months or so, based on CPUID temp readings. If you've run 8 months, dust is the main problem but underclocking a bit can mask the problem and get you stability.

chalsall · 2014-07-05, 19:37

Quote:

Originally Posted by Miszka

Thank you, so as I suspected, something is not so with my laptop.

Highly likely at this point... The second TC has completed, and again DIDN'T match your DC.

Uncwilly · 2014-07-05, 20:50

For laptops, when you are away, there are 2 more options to help keep it cool.
1. 'Tent' it. Put the angle between the screen and the keyboard at about 45 degrees, then set the front edges on your desk. It will look something like this -> /\
The fan will have plenty of access to free flowing air and if it vents to the rear, that will be pointing up, carrying the heat away.

2. Second is a variant on that, instead of the front edge, use the left or right side to stand it on.

Miszka · 2014-07-05, 21:04

Quote:

Originally Posted by chalsall

Highly likely at this point... The second TC has completed, and again DIDN'T match your DC.

There is the truth so, unfortunately. The result LL for M68210459 is surely also incorrect.

chalsall · 2014-07-05, 21:21

Quote:

Originally Posted by Miszka

There is the truth so, unfortunately. The result LL for M68210459 is surely also incorrect.

Almost surely.

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2014-07-04, 16:26	#13
TheMawn May 2013 East. Always East. 11·157 Posts	Yes, the new version of Prime95 has some new improvements to Haswell specifically, which makes it run both faster and hotter. Check your notebook cooler. You would not be the first, nor the last, to accidentally have the fans pointed the wrong way.

2014-07-05, 01:56	#17
Ken_g6 Jan 2005 Caught in a sieve 5×79 Posts	I made a thread on a different forum about how to keep a laptop cool running prime tests. In summary: 1. I keep the lid open, keep it up on a stand to give it good air flow, and keep it in as cool a place as possible. (Currently my basement.) 2. Get ThrottleStop and turn your clock speed down until the CPU is cool enough. 3. See if you can find a fan control program that supports your laptop's fan(s). SpeedFan didn't work for my ThinkPad, but a program called TPFanControl did. If you can find such a program, you can turn up your fan speed and then maybe turn up your clock speed a bit.

2014-07-05, 20:50	#20
Uncwilly 6809 > 6502 """"""""""""""""""" Aug 2003 101×103 Posts 2³·1,223 Posts	For laptops, when you are away, there are 2 more options to help keep it cool. 1. 'Tent' it. Put the angle between the screen and the keyboard at about 45 degrees, then set the front edges on your desk. It will look something like this -> /\ The fan will have plenty of access to free flowing air and if it vents to the rear, that will be pointing up, carrying the heat away. 2. Second is a variant on that, instead of the front edge, use the left or right side to stand it on.