**OFFICIAL SAGER 8850-Clevo W880CU Owners Lounge**

[H-Emmanuel]

Well my temps are in safe territory temperature-wise. I'm worried about my battery too because these little charges all the time are gonna wear it out.
Now, lemon mobo would suck as I am abroad on a semester.

[Aikimox]

@H-Emmanuel,
Is the 87C your GPU load temp reported by GPU-Z during/before the crash?
If so, that might be the memory chips overheating. If I understand correctly, Clevo uses pads for the memory and paste for the die. GDDR5 runs way hotter than the core. If the core gets to 87C - the memory chips (provided stock pads are used) could be hitting 105C+.
My 2 cents, of course.

[Soviet Sunrise]

Yes, multiple charges and discharges within a very short time is bad for a battery. That is part of the reason why his battery was damaged.

For now I guess you can work on technique and see if you can better remount the heatsink and the thermal paste. There have been quite a number of times here in the Clevo forum where users would buy and apply X23 onto their chips and get worse performance out of it. And when they posted their pictures of their heatsinks removed, I can already tell that the application was lousy. Hell, sometimes not the entire die is covered, and when they reapply the paste to compensate, way too much paste is used. When I was at a LAN party before, we were messing around with thermal paste. I was able to get a P8400 cooler with MX-2 than when my friend put on X23. Then I applied the X23 myself and was able to get the most optimal temps. It's just like sharpening knives. It is 99% technique and 1% tools/material. I still stick to X23 as my primary paste, but for routine repastes on customer's computers, I just use MX-2 or PK-1 because it's much easier and I'm a lazy guy. The performance difference isn't noticeable for casual and power users, but for benchmarkers and tempmarkers, every little bit counts.

You can remove your battery if you want and line the exposed bay/HDD bracket with EMI shielding and just prop up that corner with an eraser or something. If you're just going to use it on the table, you don't have to put shielding and just use the eraser.

[Soviet Sunrise]

The symptoms for overheating memory aren't present in H-Emmanuel's W880CU.

[Aikimox]

The symptoms for overheating memory aren't present in H-Emmanuel's W880CU.

I wonder, what would be the symptoms generally for overheating memory?

[Soviet Sunrise]

Black/grey screens, driver crashes to desktop, BSOD's, purple/black checkering, horizontal lines, and anything else display related. Drops in power are very rarely correlated with overheating GPU memory.

[H-Emmanuel]

OH trust me, I've been building desktops and laptops for years, I apply thermal paste perfectly and my temperatures show that, they aren't high at all. Anyhow, I recorded the problem:
YouTube - W880CU Power Brick Problem

This looks like a bad power brick to me, the LED dimming shows that the laptop sucks more power than the power brick can supply to the point that the low power consumption LED dims too. I hope that if that is the problem, that's it's the ONLY one and that there isn't a motherboard problem behind or something.

This is my verdict for now, based on Falcon69 and my experience.
So...
When gaming and the laptop switches to battery, it's because the powerbrick just stopped providing power, therefore it's just like when running your laptop and pulling your power chord out, the laptop doesn't turn off but switches to battery immediately. The battery can last long enough for the power brick to make up it's mind and start providing power again, that's why it's all stuttering and suddenly performance comes back, because on AC full performance is unleashed. However, in the event that we're running a much more stressful application, such as Furmark, when the power brick cuts and the load is offloaded to the battery, the battery can't take it, hence the sudden shut off.

Also I'd like to point that to the touch, the power brick is not hot, it's warm but not hot. I've had my power bricks run a lot hotter with my M860ETU and I never had the problem. So I really doubt there's a power brick overheating problem.

Anyone with a W880CU, try running Furmark, 1920*1200, extreme burning mode (to increase power consumption) and tell me if you get the same problem. That way we'll be able to see if the problem is widespread and Clevo will probably take action.

[Soviet Sunrise]

Hot PSU's is what we want. The heatsinks inside are effectively capturing the heat inside and is slowly dissipating through the Lexan casing. After watching your video, it is definitely an issue isolated at the PSU; god forbid it includes anything else. The power draw from the notebook is massive and the adapter cannot keep up.

[H-Emmanuel]

That's what I hope for, defective PSU is nothing to replace but something defective in the laptop is just impossible right now, can't RMA from overseas.

I'd be interested to get a D900F female plug PSU. 220W would be optimal, especially if overclocking. Gaming load temps of 74c leaves room for overvolting and overclocking. I bought a 17" notebook for headroom when overclocking, to not be limited by temps. Lack of power was my last worry, so I'm gonna see if RJTech is willing to exchange my 180W PSU for the 220W.

[ibraveheart]

Laptop shuts off anywhere between 79c and 87c and that's when I'm gaming or stress testing. I thought too that maybe there was a specific temperature where the laptop would shut off but that's not the case. I was playing BC2 and this time since my battery is fully charged, I saw the battery indicator go from green to orange and the lag started, got out of the game and there again battery was at 99% and GPU-z monitors showed that the GPU clocks had gone down in the meanwhile.

This is how I see things:
-GPU load + battery charging = shut off in BC2
-GPU load + battery charged = lag in BC2
-GPU load + battery charged + 40W extra = stable possibly?

Because right now, stress testing the GPU crashes the laptop whether it's charged or not, so there is a power problem that's for sure. I kinda doubt that Clevo would have made a laptop that wouldn't work well with an included component. They supposedly redesigned the W870CU for the GTX480M, I hope they did more than modifying heatsinks because that behavior would be the one of a W870CU running a GTX480M. I would really be surprised if Clevo let that happen.
And on a side note, my laptop has a W880CU BIOS version so it's not a W870CU with a shoehorned GTX480M

With all these Issue
I think the Asus G73JW is a better buy ?