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OMEN 17.3 inch Gaming Laptop PC 17-ck1000 (509V8AV)

Hello everyone. I am experiencing an issue with my new laptop where the SSD is running much slower than it should be. I had an hp omen 17 inch and had to take it back because there was a problem with a fan so I bought a new one. The new one has intel i7 12800hx processor instead of intel i7 12700h. Since then my ssd speed is much slower than in my older model. On userbenchmark I get scores of 285% instead of 385% on my old laptop. Also I tested with passmark and my scores are much lower too, by like 20%. What could be causing this? I've heard people say that you must enable AHCI mode in the bios, but the HP Omen laptop bios has no such options. I'm confused and don't know how to approach this. Any help is appreciated.

Thank you.

 

EDIT: I just looked at the intel website for the processors that I was comparing. Apparently my older laptop with the 12700h supports up to 28 pci express lanes. Whereas the new 12800hx supports only 20 pci express lanes. Could it be that i'm maxing out the express lanes on my new laptop processor which is causing the SSDs to run slower?

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