[SOLVED] my PC won't send out any signal

[huynhat]

Hello Tom's HARDWARE community,
I'm a new user and would like to get some much needed help here.

Suddenly my pc give no signal to the monitor, both the external gpu and the integrated gpu

I have tried

• stripping it all, removing almost all components to the bare minimum and it still not work
• check if my monitor or cable is working properly (I'm using the same monitor and HDMI cable hook to laptop to write this post)

Please help me!

Spec: (after removing)

• MAIN: MSI B360 MORTAR
• CPU: I7 8700
• RAM: 8GB PARIOT
• PSU: COOLERMASTER 550W

Spec: (before removing)

• MAIN: MSI B360 MORTAR
• CPU: I7 8700
• RAM: 2 x 8GB PARIOT
• External GPU: MSI 1060 6GB
• PSU: COOLERMASTER 550W

 

[jojesa]

err ... so what decide a PSU is reliable?
continuous wattage?
mine psu don't even list its continuous wattage

If a PSU does not list continuous wattage, it is hard to know for how long it could keep working at certain power draw.
When a PSU does not list specific data about is specs, is missing some important features (UVP/OCP)or it has less than 5 years warranty...stay away from it.
UVP (Under Voltage Protection)
OCP (Over Current Protection)

https://www.corsair.com/us/en/Categ...es-2015-config/p/CP-9020102-NA#tab-tech-specs

and that PSU isn't cheap though, at least for me budget, at least for the price when the psu was purchased.
so are you saying that the psu is not reliable or fit for the job?

For the components you have, I would not recommend that PSU.
The minimum quality I would recommends will be something like the Corsair CX550

 

[huynhat]

If a PSU does not list continuous wattage, it is hard to know for how long it could keep working at certain power draw.
When a PSU does not list specific data about is specs, is missing some important features (UVP/OCP)or it has less than 5 years warranty...stay away from it.
UVP (Under Voltage Protection)
OCP (Over Current Protection)

oh <Mod Edit> rip me X_X
I have been deceived.

For the components you have, I would not recommend that PSU.
The minimum quality I would recommends will be something like the Corsair CX550

but aint that CX550 don't have the features you said?
although yes it has the continuous wattage and warranty
and it is the minimum you recommended, which means,
the priority order is:

1. continuous wattage
2. 5 year warranty
3. (optional) Under Vottage Pro, Over Current Pro

right?

but there's so few psu with the fancy stuff you said
so far I have only found this:
Corsair SF600 - 80 Plus Platinum

but yooo that's a 600W PSU, continuously,
not to mention it's "platinum" effiency
which is, quite obviously, expensive 😵

 

[jojesa]

oh <Mod Edit> rip me X_X
I have been deceived.


but aint that CX550 don't have the features you said?

Yes it does...It says so in the manual.
OVP (Over Voltage Protection)
OPP (Over Power Protection)
UVP (Under Voltage Protection)
SCP (Short Circuit Protection)

although yes it has the continuous wattage and warranty
and it is the minimum you recommended, which means,
the priority order is:

1. continuous wattage
2. 5 year warranty
3. (optional) Under Vottage Pro, Over Current Pro

I do not consider those features optional, since they prevent you components from getting fried.

 

[huynhat]

Yes it does...It says so in the manual.
OVP (Over Voltage Protection)
OPP (Over Power Protection)
UVP (Under Voltage Protection)
SCP (Short Circuit Protection)

hold up,
where did you get that manual from,
I could not manage to find it.
and aint those feature also the same as my current PSU the MVE 500?
it also lack the Under Voltage and Over Current.

I do not consider those features optional, since they prevent you components from getting fried.

hmmm, make sense, I misunderstood you again X_X
then it means I have to drop the bucks on that platinum psu then?

 

[jojesa]

hold up,
where did you get that manual from,
I could not manage to find it.
and aint those feature also the same as my current PSU the MVE 500?
it also lack the Under Voltage and Over Current.


hmmm, make sense, I misunderstood you again X_X
then it means I have to drop the bucks on that platinum psu then?

When you get a good quality reliable PSU, it does come with those features.
You do not need to get an expensive platinum PSU.

I will let you in on another secret, just like RAM, there are plenty of companies selling PSUs, but there is a handful of PSU manufacturers.
All companies have different PSU tiers, from excellent units to pure garbage.
I was just showing you a PSU model that I found to be reliable.
Cooler Master have very good PSUs on their lists of units...such as GX550 Bronze, V550 GOLD V2, MWE Gold 550 V2, etc.

Which PSU companies are available in your area?

 

[huynhat]

When you get a good quality reliable PSU, it does come with those features.

My brain .. hurts.

You do not need to get an expensive platinum PSU.

ohhh what a relief. so that PSU is overkill then?

I will let you in on another secret, just like RAM, there are plenty of companies selling PSUs, but there is a handful of PSU manufacturers.
All companies have different PSU tiers, from excellent units to pure garbage.

How do you know these secrets??!!

I was just showing you a PSU model that I found to be reliable.
Cooler Master have very good PSUs on their lists of units...such as GX550 Bronze, V550 GOLD V2, MWE Gold 550 V2, etc.

Oh my god, my brain hurting so much.
Let's do it the easy way, just recommend me some good models

Which PSU companies are available in your area?

There are Cooler Master, Gigabyte and MSI officially in; my dealership also got Corsair's PSU
Easiest way is just use what my dealership has to offer:
https://postimg.cc/gallery/0kp8BrJ

 

[jojesa]

My brain .. hurts.


ohhh what a relief. so that PSU is overkill then?


How do you know these secrets??!!


Oh my god, my brain hurting so much.
Let's do it the easy way, just recommend me some good models


There are Cooler Master, Gigabyte and MSI officially in; my dealership also got Corsair's PSU
Easiest way is just use what my dealership has to offer:
https://postimg.cc/gallery/0kp8BrJ

Is that the only place available to you?
Not that many good options from that dealership.

The best on the bunch, top of the line, is the Corsair RM650, but that unit might be expensive.
The Cooler Master MWE 650 Bronze V2 is a couple of tiers below but is still ok.

On a system with a dedicated GPU higher than the 1050 ti, avoid the Corsair CV, Silverstone Essential/ST, Deepcool DN and Gigabyte P.

 

[huynhat]

Is that the only place available to you?
Not that many good options from that dealership.

Well .. that is among the best dealership available to me.
The only place comparable is, you may take a look:
https://phongvu.vn/psu-541.cat?pv_source=homepage&pv_medium=de-megamenu-text

Thing is, almost no one is knowledgeable about PSU in my place, or at least couldn't be the same level as veterans, such as you.

Also, rewiring the cables is too hard for me, I also have other deadlines to meet.
I don't see how I can allocate 1-2 weeks, let my main workstation sit on the side, learning how to rewiring.
Man, I'm not much of a PC hobbyist, I just need the machine to work.
You can treat my PC as a customizable pre-built, rather than a custom PC.
Just because you can do something with it, doesn't mean you should 🆒

The best on the bunch, top of the line, is the Corsair RM650, but that unit might be expensive.

that one is expensive 😵
the price almost equivalent to the Corsair SF600 platinum PSU.
(120$ vs 150$)

(err .. the picture I sent before is only 2 of the pages)

The Cooler Master MWE 650 Bronze V2 is a couple of tiers below but is still ok.

Yeah the 650 Bronze V2 is 70$.
On the other hands, the 650

• doesn't list its continuous wattage.
• has Under Volt Pro but not Over Current Pro
• the internal components look good

I don't know man.

On a system with a dedicated GPU higher than the 1050 ti, avoid the Corsair CV, Silverstone Essential/ST, Deepcool DN and Gigabyte P.

Why? the CV look good to me:

• continuous wattage
• protection features

You care to elaborate why dedicated GPU don't like the CV? .___.

P/s: Moderators, why my post need your approval? .____.

 

[jojesa]

Also, rewiring the cables is too hard for me, I also have other deadlines to meet.
I don't see how I can allocate 1-2 weeks, let my main workstation sit on the side, learning how to rewiring.
Man, I'm not much of a PC hobbyist, I just need the machine to work.
You can treat my PC as a customizable pre-built, rather than a custom PC.
Just because you can do something with it, doesn't mean you should 🆒

I do not believe that re-connecting PSU cables will take you 2 weeks. Maybe an hour if you have not done it before.
If you are not up to the task and you do not feel comfortable, then get help from someone else or a computer shop.

You were asking for help, so we provide you with helpful data, is up to you what you do with it.

Yeah the 650 Bronze V2 is 70$.
On the other hands, the 650

• doesn't list its continuous wattage.
• has Under Volt Pro but not Over Current Pro
• the internal components look good

I don't know man.

Cooler Master gets PSUs build from six or seven manufacturers.
The Cooler Master MWE 650 Bronze V2 internal components are quality built and has OPP, OVP, UVP, OCP, OTP and SCP.
You could just read the manual or specs available from Cooler Master website if the seller (dealer) does not list full specs.

Why? the CV look good to me:

• continuous wattage
• protection features

You care to elaborate why dedicated GPU don't like the CV? .___.

The GPU could be the most expensive component and the one that could used the most wattage in the system.
The GPU on your system could draw more power than all other components combine.
I would not trust a cheaply made Corsair CV to power an expensive GPU.

Buying quality means, spending money only once. You will save money in the long run.
A quality built PSU will last longer and will protect your components in case of a mishap.

 

[huynhat]

@jojesa @jojesa
I finally bring the machine to tech support last weekend. Here's the details:

• He (the technician) do POST check -> work fine with one 1 ram stick
• He insert the next ram stick -> it doesn't work
• He clean the ram with clothe (something I did) -> doesn't work
• He blow the ram, clean it with clothe again (something I also did) -> doesn't work
• He clean the ram slot with a mini broom (I didn't have the mini broom to carry out) -> doesn't work
• He then clean the ram with .. an eraser, yeah an eraser, and he erase the ram -> it works
• He repeat that eraser with the graphic cards -> it also works

Does this ever happened to you before @jojesa ?

 

[jojesa]

@jojesa @jojesa
I finally bring the machine to tech support last weekend. Here's the details:

• He (the technician) do POST check -> work fine with one 1 ram stick
• He insert the next ram stick -> it doesn't work
• He clean the ram with clothe (something I did) -> doesn't work
• He blow the ram, clean it with clothe again (something I also did) -> doesn't work
• He clean the ram slot with a mini broom (I didn't have the mini broom to carry out) -> doesn't work
• He then clean the ram with .. an eraser, yeah an eraser, and he erase the ram -> it works
• He repeat that eraser with the graphic cards -> it also works

Does this ever happened to you before @jojesa ?

That's great!
I have encounter something similar just a few times, when sugary drinks were spilled on the hardware or tar from smokers built up on the system.
I cleaned (bathe) with 99% isopropyl alcohol...have never used an eraser though.

 

[huynhat]

I cleaned (bathe) with 99% isopropyl alcohol...have never used an eraser though.

What? You clean with what? Is that the 90-91 degree industrial alcohol?
You really dip the ram stick in that alcohol?

 

[jojesa]

I have bathe motherboards, graphics cards and RAM on medical grade 99% isopropyl alcohol.
The components are bone dry within a couple of minutes.

 

[huynhat]

Holy molly I don't think I have the courage to do that lol 😳

 

[jojesa]

Holy molly I don't think I have the courage to do that lol 😳

Well, when a sugary drink becomes in contact with components it start oxidation, so if that process isn't stopped on time the components will start to die.