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Omen 17 died after prime95

hanz0r
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Hi,

so i got myself a Omen 17-an136ng with i7 8750H and GTX1070 two days ago, undervolted -125mV using Throttlestop and ran Prime95 to test stability.

After about 20-25min the Laptop shut the screen off and i had to reboot.

After reboot and voltage reset the Laptop continued to shut the screen off randomly but seemed to be still working (sound notifications still there when un/plugging USB devices).

I just could not get a videosignal, not even the HDMI port was working. After trying to resolve the issue for another hour it completely refused to start up. I returned it to the shop i bought it from and luckily got a replacement unit.

Now i'm curious about what went wrong: Was it a faulty gtx1070? If yes why does it die on Prime95?

Max CPU temperature was 79°C while stress testing (max heat test). Was the undervolting too much?

I don't want an exact answer but some opinions would be nice, especially since i'm a little bit discouraged to try and undervolt my replacement unit.

Thanks in advance for all replies.

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probably a faulty unit from the start

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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Undervolting typically would not cause damage, just potential stability issues. Bad unit is likely the cause. TJunction for the CPU is 100C, running up to 80C is plenty safe.

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