Haswell overclocking and XTU scoring

After finally managing to get a stable 4G overclock on all 4 cores on my 4910mq for 24/7 use I checked hwbot and found I had the world record there for a score of 1046 for my 4910mq @ 4G. Digging deeper I see this score is about the same as 4770k overclocked to 4.4G.
What scores and clocks are other people managing to get for their mobile Haswell cpus? I'm surprised I can outscore desktop cpus with their higher ocs.

 

The 4770k scores you are comparing to are not performing correctly. Still a nice score

 

Submitted 2 more scores, 4.1 @ 1.15 vcore 1063 points, 4.2 @ 1.18 vcore 1083 points. 4.3 was experiencing current throttling @ 140 amps so I cancelled out for the time being. Max power draw I saw was 99W.
Definitely not going to be using these 24/7, how do other ppl run their cpus at 4.2G? Do they not throttle/overheat under load?

 

What system are you using?

 

NP9377sm-a

 

Typically 3.9-4.0ghz for 24/7 but it depends on the quality of the chip and cooling system tolerances.

 

What vcores are you seeing at 4G? I went with 4910mq instead of 4940xm as I'd heard temps would prevent enjoying the 4940xm unlimited multis which seems to be the case here.
However I wonder if I just got a bad quality 4910mq chip for oc?

 

No you seem bang on for what I would expect.

 

Thanks, these Clevos don't seem to have much thermal headroom for overclocking the cpu.

Oh well, more modding needed

 

You insist on not using max fans, so that limits your headroom, as far as I remember.

Also, the CPU cooling is indeed downgraded from the EM series, but it was necessary for 780M/880Ms. It's not necessary NOW however, so I keep telling people about it. XD.

 

Problem is the parts seem to vary in effectiveness even between the same model of Clevo. Eg. Ethrem had his NP9377 replaced for high temps, it returned with super low temps with just ic diamond pasting.
I haven't started to look at gpu temps under load yet so don't want to disturb the existing gpu heatsinks until I get a baseline of temps under stock n oc. 10 degrees increase may not affect the gpu if it never goes above 80 fully loaded while oc.

 

Temperatures will vary from machine to machine due to chip quality and exact heatsink dimentions, the CPU cooling is perhaps the weaker part of the unit, you can get 3.9-4ghz to run all day long though and that's going to get you a LONG way, even with the next generation cards (if they work).

 

Thx Meaker. Is there any way to measure cpu fan speeds? I'm convinced the cpu fan on auto either has an additional increase after 95 degrees or it's the highest speed being delayed since after throttling for 45 secs it revs up 1 notch and temps drop below throttling.
I'm trying to work out which it is as it's quieter than max yet louder than anything below 95 degrees. If you know what the temps and stock fan speeds are, evwn better.

 

Max fans NEVER and I repeat: NEVER occur on "auto" fan setting. You want best cooling, use Fn + 1. Even if you leave it on 24/7, which isn't a bad thing. You probably just need to clean it more

 

If that's the case then the fan behavior on my machine is the highest speed doesn't kick in until about 45 secs once throttling starts. Maybe delayed? Or once temps trip 95 degrees.
Need some way to verify this, only difference from max fans is that only the cpu fan speeds up and not the gpu fans.
Once xtu stressing stops it seems to turn off the cpu fan for 5 secs before engaging the fans at a slower speed.

 

u can check the fan rpms by using HWInfo it gets that info off the machine´s embedded controller (EC)

 

I tried that but no fan speeds shown for np9377 even with ec checked under settings. Any other method?

 

IF auto fans hit max speed when you throttle, then it's to prevent hardware damage. Because max fans cool a lot better, up to 10 degrees celcius better, under load. The reason GPU fans don't spin up is because they're not stressed. Also, if your FN + 1 fans do not cool better than your auto fans, your machine is broken. You're not getting auto fans to hit max RPM under general load.

I've not been able to find RPM in HWiNFO64 for clevo fans. I know alienwares have the option show up, but clevos I believe do not.

 

Dang, could really do with the fan speed to check what's going on. The max fans are really noisy and annoy everyone else in the room.

 

hm, too bad, back in the day with my HM series clevo i was able to read the rpms in HWInfo...

 

Then your room must be dead silent. Even a fan on across the room in my room drowns out my max fan laptop. If you want to push OCs and temps, you either ask Prema to design a BIOS with EC settings that use actual max fans on "auto" setting above 80 degrees (which sucks anyway, because max fans is such a huge temp drop it'll be swapping between normal and max all the time as temps go down then up then repeat).

Suggestion: ask people in room to get used to it.

 

You could make the fan profile a bit more passive at idle but at load a certain degree of cooling is required.

 

Only louder machine is my brother's AW M18x R2 when he starts gaming.

 

Well that's a similarly high end machine so no surprise. You could disable sli and run with a single card to take a fan out of the equation I suppose.