Need Help Sager NP7958F1 Black Screen Of Death, starts up than Fans spin up and shuts down.

1. It’s the same as the Clevo NH58AF1 except that’s a barebones Laptop. It Worked fine as of two days is ago, no known issues, left in sleep mode, sleep light was blinking all night. Went to turn it on today and no display so did hard reboot and got Black Screen Of Death, the power light is on and HDD lights come on, keyboard RGB comes on and keys function with caps lock I can hear windows sounds one of them is the sound windows makes when you plug in a USB device, but no device is plugged in when it makes that sound than after about a minute or so the fans spin at full speed and it shuts itself down. Would it do this if the GPU or motherboard was bad or is It more likely a corrupt BIOS or memory issue? I’ve been reading this can be anything from a corrupt BIOS to a bad GPU or bad caps on a motherboard, although I have had no issues with the GPU works great and temps are good. So far I’ve pressed F2 to enter BIOS setup, no change, try to startup off Windows 10 flash drive, pressed Function D to reset CMOS, removed the laptop battery, pressed and held the start button to discharge the power 4 X. Connected HDMI to an external monitor but no signal. Blown compressed air through the fan exhausts to clear out any possible dust or debris, only thing left is flash the BIOS .The problem is which BIOS to flash without risking bricking it. Unfortunately if it is a hardware issue like the GPU or motherboard, the Sager warranty expired last month. Anyone have a similar issue and was able to resolve it? I would appreciate any help with this, thanks

 

Did you enable RDP before? Have you got a USB dock with a video out you have used with it before?

 

No unfortunately I didn’t think about RDP and the occasion hasn’t arisen where I needed remote assistance. As for a USB with video out I never have tried a external GPU so I don’t know. I suppose if that worked than that would indicate the onboard GPU is bad, but the motherboard is still good? All I know for sure is the built in GPU has a HDMI, mini HDMI and mini DP port and so far no signal fromthe HDMI, wouldn’t that point to a hardware failure or could it possibly be a corrupt BIOS? How often does hardware failure occur with no warning? Thanks for reaching out, since I have lifelong tech support I created a ticket with Sager Tech Support and waiting to here back from them.

 

USB hubs use the CPU to render their outputs so it's a simple output solution that takes the GPU out of the equation.

BIOS issues really only occur when you have flashed the chip or have a modified file already and change options that are not stable. So it would point to a hardware issue I think.

 

[QUOTE="Meaker@Sager, post: 11132503, member: 11947" BIOS issues really only occur when you have flashed the chip or have a modified file already and change options that are not stable. So it would point to a hardware issue I think.[/QUOTE]

I understand that and I didn’t flash or do any kind of mod on the BIOS chip, so there is no reason for the BIOS to corrupt, like you said the only logical conclusion would be hardware failure and considering the main board is not dead it points to the GPU, unfortunately they can’t be replaced, fortunately I did purchase a 4 year warranty to cover this type of issue so either they will repair it, not likely since the parts namely the motherboard may not be available, replace it, possibly because even if Sager doesn’t have them, Clevo makes them barebones or just reimburse me for it, That would mean I would have to buy one barebones and hope I can come in within budget with the CPU, memory and hard drive, this is not my first choice because I’m not comfortable handling CPUs. I really like the laptop I have and would prefer to stay with it unless I can upgrade to something like a high end system like Alienware but I would have to add at least another thousand to the amount.

 

I thought I replied to this, but as far as the desktop CPU that’s in the laptop it has no integrated CPU as these are mainly used in conjunction with discreet PCIE desktop graphics cards and as far as this system goes it has no onboard integrated GPU I’m not sure how this works but it’s a discreet GPU installed onboard. How is that possible? So the only thing left would be to use a external GPU, would that work if the systems GPU is bad?

 

If you are under warranty then support are definitely the ones to speak to. USB hubs use the CPU to render the screen, that means the actual CPU cores, not the IGP and not your graphics card.

 

But isn’t that only if the CPU is like a AMD that has integrated video like the ones found in Mini gaming PCs and small firm factors? To the best of my knowledge the Ryzen 9 3900 doesn’t have that.

 

No, it's literally CPU processed. CPUs cores can process video data they are just slower than GPUs of any kind. But there is no way for a USB device to take advantage of a GPU.

 

Hi I forgot about this post, I have yet to resolve the issue, haven’t sent it in yet for various reasons. Going back to the video out on USB, is this what we are talking about something like this? https://www.ebay.com/itm/255315995169, the problem is that it requires a driver to work I don't see how I can install a driver if I can't see what I"'m doing, also on a related note, the GPU still warms up, wouldn't a dead GPU stay cold? I'm more inclined to believe it's something BIOS related.

 

A dead chip can still get hot, it's just using power. Does not mean it's producing anything useful. It's a fairly common failure mode for electronics.

 

Ok I understand so what about the USB out video to HDMI any way to work around the driver? I was thinking if it’s a pop up type driver. I can install the adapter on another laptop that has video and see what the sequence is to install the driver and maybe it’s just a question of waiting for the driver pop up and just hitting enter at the right moment, maybe it will load the driver and I can get video so I can at least get to BIOS. I guess that’s what you were referring to when you suggested the idea? Also if the video adapter is CPU dependent and there is no video coming out from the adapter, assuming the driver loads, wouldn’t that mean something is wrong with the CPU rather than the GPU? Thanks for the help.

 

Follow the installation blind would be it if you can't RDP to it.

 

That would be the case since I’m very certain RDP is off, but I haven’t tried to RDP so maybe it’s on by default, I’ll have try and see. Thanks

 

It might be the easiest thing to turn on blind, practise on a machine that's working to get an input list and then follow it using keyboard shortcuts.

 

Unfortunately both the Sager and my other laptop both have Windows 10 home, from what I’ve read home doesn’t have RDP.