XPS 8700, System have failed at checkpoint [0094]

For starters, when was last time you replaced motherboard battery? You may want to start there, if nothing else than to rule the battery out.

1. Reboot and start tapping F2 when you see the Dell screen to open BIOS setup
2. Copy down all current BIOS settings, to be safe
3. Power off, unplug power cord from rear of PC
4. Press/hold power button for ~15 sec
5. Open case and remove motherboard battery (check Service Manual for details)
6. Press/hold power button for ~30 sec
7. Install fresh CR2032 battery
8. Close up and connect mouse, monitor and keyboard
9. See if it boots now...

Is this really an XPS8700? Sure doesn't look like mine?

I see in the middle of the video a SYSTEM FAN FAILURE too.... could be the basic cause?

But you also get to Windows it seems or at least the sign-in screen?

If this IS an XPS8700, and it appears you've added a lot of things, like 'lights' and a high power video card, and I assume possibly some fans? I'd remove the video card and use the base on-board video (if it has it, not sure?).

Check the fans too, when you power it on, are all running or else there could be a motherboard sensor fail?

Can you get to the F12 screen when powering on? Run the Diagnostics from there is possible?

@RoHe​ 

Good evening, how are you?

Regarding the battery, it's been a while since I changed it, but I tested it with a multimeter, and the battery is giving 3 volts, so it's good.

I took the computer to a repair shop, and they said they reset the BIOS using the jumper and through the battery procedure, but it didn't solve the issue.

They updated the BIOS, and initially, it worked, but then the message reappeared.

It's always the same: when I try to turn it on, it doesn't display video, but the PC stays on, and no matter how much I press the keyboard keys, nothing happens. Sometimes it turns on and restarts by itself, shows the error, and continues, but I have to turn it off and on about three times.

When it turns on, it stays on, and I can play games, use it, and do everything without any issues.

@ispalten​ 

"Is this really an XPS8700? Sure doesn't look like mine?"

Yes, it is an XPS 8700. I changed the case, added fans, changed the power supply, installed a new graphics card, and added an air cooler. Only the appearance is different, but the motherboard is from Dell, XPS 8700 model from Dell. Here are its specifications:

PCYES 650W 80 Plus Bronze power supply,

Motherboard: 0KWVT8 A02 Dell

4x4 16GB RAM DDR3 1600MHz

NVIDIA GeForce RTX 4060 Galax 8GB

i7 4790k 3.60GHz

SSD System 500GB

HDD 1TB 

"I see in the middle of the video a SYSTEM FAN FAILURE too.... could be the basic cause?"

Regarding the fan failure, it's because one of the fans is not directly connected to the SysFan, but this was already happening before, I just pressed F1 and it started normally, without problems. This issue with the "System have failed at checkpoint [0094]..." warning started when I replaced my original air cooler with this larger air cooler.

"If this IS an XPS8700, and it appears you've added a lot of things, like 'lights' and a high power video card, and I assume possibly some fans? I'd remove the video card and use the base on-board video (if it has it, not sure?)."

I believe the graphics card is not the problem, because before installing the new air cooler, I used to play normally and the PC started up normally with the old air cooler, without any startup errors or anything.

"Check the fans too, when you power it on, are all running or else there could be a motherboard sensor fail?"

All the fans start up normally; none of them fail.

"Can you get to the F12 screen when powering on? Run the Diagnostics from there is possible?"

When it starts and displays video, I can access the F12 screen. But when it starts without displaying anything, no matter how much I press the keys, it doesn't enter the BIOS.

@iMeGDiiA​ 

Wow, IMPRESSIVE upgrade!

I've got an 8700, now sitting idle, decommissioned so to speak but saved for a back-up if needed,

As I look at the parts, would not have been cheaper to get a new PC already? That video card alone is around $300. A newer XPS would have faster RAM and CPU? I'd suspect a similar XPS today would be in the $1,200 range? Like these 2 adding for $100 a 1TB hard drive:

You said the Repair show got into the BIOS? Yet you can't?

There is a way to do via Windows. See  https://www.dell.com/support/kbdoc/en-us/000126121/access-uefi-bios-system-setup-from-windows-on-your-dell-system how to do it.

@ispalten 

I bought my PC much years ago, something around 10 years ago. I didn't want to have to pay a new PC completely, I believe that I could buy a motherboard for first but I decided to buy a GPU.

I think to change my motherboard later, but in the moment I can't, I just wanted to try solve this issue that I'm having now.

All those steps to open a BIOS configuration I've already done, I'd like something more specific...

I can use my PC normally, but I have always a little of difficulty when I'll try to turn on my PC causing this issue at the message above.

Would it be worth swapping in another video card just to see if that helps...?

@iMeGDiiA​ hm.. I think the stock 8700 motherboard is barely compatible with the i7 4790k? Is there a bios update for the stock motherboard that can handle this chip?

Yes i have this problem please help me if possible 

@aubihfrank​ strictly, the only way to improve is to move to a better mb. The 8700 mb is really done. There's no room for expansion in the pcie lanes, they're slow lanes as well. You have to give up the graphics card to add lanes, so, it's time.. The 8700 had a good run to 2024. It's actually quite amazing that it made it this far. If you're a tinkerer, get a better mb. The 8700 chassis is still decent imo. It's definitely better than the 8930's (for example).