New Prebuilt Build No Signal (not even BIOS)

[TechManMax]

From Dr Memory on eBay (Trusted UK seller and they manufacture their own parts under the Xum brand and have very positive reviews) so currently waiting to hear back from them (won’t be before Monday unfortunately).

But…I’ve tried everything. The computer physically boots and the case fans and the CPU cooler fans (Thermalright Peerless Assassin 120 SE) work fine. I’ve tried swapping out the preinstalled Xum Ram (2x 16GB 3200 DDR4 CL22) for the Corsair CL16 3200 2x 16GB that I bought separately on Amazon and the no signal issue remains. I’ve tried unplugging and reseating the GPU (Palit Dual RTX 4070 Super) and still no signal. It’s of note that when I start the computer I can see all the case fans working, the CPU cooler fans (for the i7 13700KF so no integrated graphics to test) working, but the GPU fans are NOT spinning at all (though according to google this isn’t unusual on modern GPUs because they only start spinning past a certain temperature apparently?)

I have no idea what’s wrong. I get the single “Beep” sound when I turn it on, but no signal. No BIOS. Nothing. Apparently sometimes people get beep errors indicating different issues but I’m not getting any of those just the usual singular “Beep” when I press the power button. I’ve tried all 3 display ports on the GPU, as well as the HDMI port. I’ve tried on both LG C2 TV (HDMI) as well as 1080p monitor (DisplayPort AND HDMI). No signal. Both displays work fine with other devices.

Motherboard is ASRock B760M-HDV/M.2 D4

What is wrong?

[TechManMax]

Oprindeligt skrevet af emoticorpse:

Oprindeligt skrevet af TechManMax:

According to the sales page it should come with Windows 11 preinstalled but I’m unable to confirm as can’t see anything (not even BIOS). The computer remains powered, all fans (except GPU fans) running, it doesn’t restart or turn itself off, I just can’t see anything. At all. And the GPU fans are not running, at all.

You try hitting the input selection on your monitor?

Yes. It says no signal. Same on the LG C2.

[TechManMax]

Just to confirm the seller replied this morning (Sunday) and they are collecting it tomorrow. Should have a replacement by Wednesday. Not sure what’s wrong with it given up trying to diagnose it. Seller thought some power cables might have come loose during shipping but I’ve triple checked everything is secure.

[404NotFound]

Sounds like a bad GPU, I hate non iGPU CPUs for this very reason honestly. Makes troubleshooting much easier when you can at least boot up with integrated graphics when you need to.

[_I_]

if its a k cpu, make sure the display is plugged into the gpu not the mobo

[kingjames488]

loose cable?

it happens...

[SlowClick]

Oprindeligt skrevet af TechManMax:

Just to confirm the seller replied this morning (Sunday) and they are collecting it tomorrow. Should have a replacement by Wednesday. ....

This is the correct solution. It should work on delivery. It's not your fault.

[Guydodge]

thats a insane build a 13700kf with such a low end m.b i cant see that m.b getting anywhere near the performance that cpu is capable of.and with a 4070 super.seems like there allot of performance going to be left on the table.let us know the numbers im sure others are curious as well.it makes no sense to me.

Oprindeligt skrevet af smallcat:

The CPU is 125W only at the base speed . Intel shinanigans . Pl2 is 253W .That mobo is unlikely to deliver such power with 5 dedicated phases . Nevertheless , it wont prevent the PC from booting .

i agree ..thats a insane build a 13700kf with such a low end m.b i cant see that m.b getting anywhere near the performance that cpu is capable of.and with a 4070 super.seems like theres allot of performance going to be left on the table.to poster ..let us know the numbers im sure others are curious as well.it makes no sense to me.

[TechManMax]

Oprindeligt skrevet af Guydodge:

thats a insane build a 13700kf with such a low end m.b i cant see that m.b getting anywhere near the performance that cpu is capable of.and with a 4070 super.seems like there allot of performance going to be left on the table.let us know the numbers im sure others are curious as well.it makes no sense to me.

Oprindeligt skrevet af smallcat:

The CPU is 125W only at the base speed . Intel shinanigans . Pl2 is 253W .That mobo is unlikely to deliver such power with 5 dedicated phases . Nevertheless , it wont prevent the PC from booting .

i agree ..thats a insane build a 13700kf with such a low end m.b i cant see that m.b getting anywhere near the performance that cpu is capable of.and with a 4070 super.seems like theres allot of performance going to be left on the table.to poster ..let us know the numbers im sure others are curious as well.it makes no sense to me.

I voiced my concerns to the company and told them what people have been saying and their reply was this:

“Hi,

Yes, these people would be right if the CPU cooler was an issue.

I can send you your test results after we test your new PC you can see your speed clock and what power it reaches if you are not sure about the board.”

I mean, effectively (after promo discount) this build cost less than £1400. £1383.09 to be precise…couldn’t even build a 4070 Super build for myself at that price using similar components.

This is their prebuilt spec on their website (at full price): https://www.drmem.com/xum-gaming-pc-legend-intel-core-i7-13700f-cpu-rtx-4070-super-12gb-gpu-32gb-ram-1tb-nvme-ssd/

(They advertise it as 13700F but they include the boxes for all components used and the CPU box was for 13700KF).

I do not wish to be bottlenecked though despite the price so am awaiting the test results (they are currently building the replacement PC). The fact they didn’t deny the concerns though gives me hope…they seem confident that the cooling solution (6 case fans as well as a hefty Peerless Assassin 120 SE CPU cooler) will be sufficient to offset the limitations of the motherboard…I guess the test results will see. At the end of the day, from my understanding after research and listening to you guys, is that it’s all about the cooling solution.

I told them:

“One other question I have after I received some tips from people helping me troubleshoot last night (Toms hardware, steam, Reddit) is they brought to my attention some concerns regarding the i7 13700KF 125W CPU included in this build (which turbo boosts up to 253W) and the very limited 5+1+1 power phase in the B760M-HDV/M.2 D4 motherboard. I’m quite tech savvy but will admit I had no idea what they were talking about so I did some research and it appears that this board struggles with thermal control and subsequently power limits high end CPUs to the point, people claim, that I won’t even be able to experience stock clocks on an i7 13700KF? They pointed my attention to a hidden section of ASRocks support page for this board, specifically the supported CPU section, where there’s a small print reading: “CPU performance may be limited due to system configuration. A top down CPU cooler is recommended.” Though it doesn’t specify what said limits are or regarding which CPU configurations. Now all I’m interested in, as an end user, is the ability to play AAA titles with high frame rates (60-100+ fps) on maximum graphics settings at 1080p (or 4K with DLSS targeting 60fps) WITHOUT stuttering or other performance issues. From what I’ve been told, and subsequently seen on YouTube, is that this motherboard isn’t capable of handling an i7 13700KF and will severely power limit due to thermal issues. Is this true? I mean theirs a hella chunky CPU cooler in this build, as well as 6 case fans. But they say, at best, this board will only support up to 13400F and anything more powerful than that will be severely throttled. If that is true I’m a little concerned about gaming performance as that’s quite CPU/GPU intensive and I don’t want any bottlenecks. If it’s the difference between 150+ and 200+ fps it won’t even affect me as my monitor is 144Hz and my LG C2 is 120Hz but if it’s going to cause stuttering or frame time issues at normal frame rates that’s a cause for concern.”

And their reply was as above.

[_I_]

5+1+1 is very weak vrm config, esp with no cooling
~100w to cpu cores max and the board will throttle it when they get warm before the cpu can get hot

the stock cooler helps more, since it blows air directly on the boards vrm mosfets

things will only crash if its throttling using incorrect mobo/chipset drivers

[Win2000Fan]

Not trying to be condescending here but is your video card plugged in? It could have unplugged during shipping. That would explain your GPU fans not spinning. I have a feeling your video card maybe bad. You could take out your video card then plug into your motherboard video to see if you at least get your computer to post. Then you would know your problem is the video card. How powerful is your power supply? Did they provide you one with enough power to power a 4070 video card? That’s a fairly demanding video card. You should have at least a 750 watt power supply for a 4070.

[emoticorpse]

Oprindeligt skrevet af TechManMax:

...I mean, effectively (after promo discount) this build cost less than £1400. £1383.09 to be precise…couldn’t even build a 4070 Super build for myself at that price using similar components.

This is their prebuilt spec on their website (at full price): https://www.drmem.com/xum-gaming-pc-legend-intel-core-i7-13700f-cpu-rtx-4070-super-12gb-gpu-32gb-ram-1tb-nvme-ssd/

(They advertise it as 13700F but they include the boxes for all components used and the CPU box was for 13700KF)....

Am I missing something or can't you build something like https://uk.pcpartpicker.com/list/Khkzrv this if you wanted?

I'm just mentioning it as proof of concept kind of thing. But are these prices right on the parts for your location? I know this is a little bit higher than that pre-built, but originally it had a 7600 was lower than the pre-built.

[TechManMax]

Oprindeligt skrevet af emoticorpse:

Oprindeligt skrevet af TechManMax:

...I mean, effectively (after promo discount) this build cost less than £1400. £1383.09 to be precise…couldn’t even build a 4070 Super build for myself at that price using similar components.

This is their prebuilt spec on their website (at full price): https://www.drmem.com/xum-gaming-pc-legend-intel-core-i7-13700f-cpu-rtx-4070-super-12gb-gpu-32gb-ram-1tb-nvme-ssd/

(They advertise it as 13700F but they include the boxes for all components used and the CPU box was for 13700KF)....

Am I missing something or can't you build something like https://uk.pcpartpicker.com/list/Khkzrv this if you wanted?

I'm just mentioning it as proof of concept kind of thing. But are these prices right on the parts for your location? I know this is a little bit higher than that pre-built, but originally it had a 7600 was lower than the pre-built.

I looked up various parts and in the end I was deciding between an AMD cpu and an intel CPU. Either way I got to £1500-£1600 like your part picker link. Budget was a very strict £1500. With the promo discount this prebuilt spec which, at full price, came in at £1497.99 cost only £1383.09. I then spent the remaining budget on a second 2TB M2 SSD to store more games.

Oprindeligt skrevet af _I_:

5+1+1 is very weak vrm config, esp with no cooling
~100w to cpu cores max and the board will throttle it when they get warm before the cpu can get hot

the stock cooler helps more, since it blows air directly on the boards vrm mosfets

things will only crash if its throttling using incorrect mobo/chipset drivers

Did you see my reply on the previous page where I showed the manufacturers response? The cooler in use here is a Thermalright Peerless Assassin 120 SE and the case also has 6 built in fans (1 rear, 2 top, 3 front). The manufacturers response to what people have been saying wasn’t to deny it but rather they said this:

“Hi,

Yes, these people would be right if the CPU cooler was an issue.

I can send you your test results after we test your new PC you can see your speed clock and what power it reaches if you are not sure about the board.”

I’m currently awaiting these results as they are building the replacement PC today.

[Set-115689]

Oprindeligt skrevet af 10Transistor:

Not trying to be condescending here but is your video card plugged in? It could have unplugged during shipping. That would explain your GPU fans not spinning. I have a feeling your video card maybe bad. You could take out your video card then plug into your motherboard video to see if you at least get your computer to post. Then you would know your problem is the video card. How powerful is your power supply? Did they provide you one with enough power to power a 4070 video card? That’s a fairly demanding video card. You should have at least a 750 watt power supply for a 4070.

Some cable/higher power gpus work to some extent even when unplugged. Can get a picture from some gpus that use power cables but won't work under load. The gpu slot provides at least 80w of power. Testing the gpu with out a power cable isn't that useful since it still leaves questions unanswered. Basically plug in power cable gpu doesn't work, unplug power cable gpu appears to work at low power. Not that useful.

[TechManMax]

Oprindeligt skrevet af Set-115689:

Oprindeligt skrevet af 10Transistor:

Not trying to be condescending here but is your video card plugged in? It could have unplugged during shipping. That would explain your GPU fans not spinning. I have a feeling your video card maybe bad. You could take out your video card then plug into your motherboard video to see if you at least get your computer to post. Then you would know your problem is the video card. How powerful is your power supply? Did they provide you one with enough power to power a 4070 video card? That’s a fairly demanding video card. You should have at least a 750 watt power supply for a 4070.

Some cable/higher power gpus work to some extent even when unplugged. Can get a picture from some gpus that use power cables but won't work under load. The gpu slot provides at least 80w of power.

To clarify the PSU in this build is 850W.

Full specs here: https://www.drmem.com/xum-gaming-pc-legend-intel-core-i7-13700f-cpu-rtx-4070-super-12gb-gpu-32gb-ram-1tb-nvme-ssd/

(Although it lists “i7 13700F” the manufacturer included boxes for all components used in the build and the CPU box was for a “i7 13700KF”)

[_I_]

Oprindeligt skrevet af TechManMax:

Oprindeligt skrevet af _I_:

5+1+1 is very weak vrm config, esp with no cooling
~100w to cpu cores max and the board will throttle it when they get warm before the cpu can get hot

the stock cooler helps more, since it blows air directly on the boards vrm mosfets

things will only crash if its throttling using incorrect mobo/chipset drivers

Did you see my reply on the previous page where I showed the manufacturers response? The cooler in use here is a Thermalright Peerless Assassin 120 SE and the case also has 6 built in fans (1 rear, 2 top, 3 front). The manufacturers response to what people have been saying wasn’t to deny it but rather they said this:

“Hi,

Yes, these people would be right if the CPU cooler was an issue.

I can send you your test results after we test your new PC you can see your speed clock and what power it reaches if you are not sure about the board.”

I’m currently awaiting these results as they are building the replacement PC today.

tower cooler cools the cpu better, but not the boards vrm areas
stock cooler blows air down on the board cooling its mosfets that power the cpu

the board is overheating and throttling the cpu to save itself

the cpu cannot get hot because the board cannot deliver enough power to make it hot