Member Avatar for randouche

hi! yesterday night, i tried setting my computer on hybernate so i pressed the power button. when i pressed the button again, this morning, it turned green (which is normal) but the computer didnt start. (??)
I have a Sony Vaio VPCEE25f X/BI
My OS is Windows 7

what i notice when i turn it on:
start button is green
makes 2 beeps (normal) when it turns on
screen is black / nothing is showing
*fan is silent* (i really hope i dont have a fan problem though...)
when i try connecting my pc via HDMI to my tv, it says theres no signal
it can turn on while charging and with no battery
it can turn on without a charger too


unfortunately, my vaio warranty expired 1 month ago...

anything else i gotta put down?
please help =(

Edited by randouche because: adding additional info
  • 3 Contributors
  • 13 Replies
  • 404 Views
  • 4 Days Discussion Span
  • Latest Post Latest Post by jingda

Dani AI

Generated

Short diagnostic summary and practical next steps for the Sony Vaio VPCEE25f situation described by . The two beeps and a completely black screen mean the machine is failing very early (during POST) — that can be caused by memory, display subsystem, or a motherboard-level fault, but beep patterns are BIOS-dependent so the pattern alone isn’t definitive ( was correct to mention POST). Below are safe, ordered checks that provide real confirmation (not guesses) and what each result usually implies.

  1. Power reset (cheap, often effective): remove AC, remove the main battery, then press-and-hold the power button for 30–60 seconds. Reconnect AC only and try power on. This clears residual charge and can recover a machine stuck after hibernate.
  2. Memory check (builds on @jingda’s suggestion, done safely): disconnect power/battery, open the small RAM access panel, ground yourself, remove both DIMMs and test each stick alone in the primary slot. If one stick makes the machine POST or the beep pattern changes, that identifies a bad module or slot. Reseat cleanly—push clips outward and insert at ~45 degrees until it snaps down. Use a soft brush or 90%+ isopropyl if contacts look tarnished.
  3. Quick display test: with the laptop powered, shine a strong flashlight very close to the screen at an angle. If a very faint desktop or BIOS text is visible, the backlight/inverter/LVDS cable or LCD is the issue (the system is running but the backlight is dead). If nothing appears and an external TV/monitor via HDMI still shows no signal, the system probably isn’t initializing video output at all. Remember some laptops need the Fn+display toggle to enable external video.
  4. Small extra checks: listen for consistent LED blink patterns (power/caps/num LEDs), avoid vacuums on vents (use canned air), and do not attempt to remove a laptop GPU — on Vaio notebooks the GPU is usually integrated. If comfortable, try a CMOS reset (briefly remove the internal coin cell) to rule out BIOS corruption.
  5. If none of the above produces a change: the likely causes are motherboard or GPU/northbridge failure. At that point the pragmatic choices are professional repair, replacement motherboard (compare cost vs. replacement laptop), or salvaging the HDD for data by putting it in a USB adapter/enclosure.

Notes and cautions: document exact beep/LED patterns and whether a faint LCD image is seen before replacing parts; power-cycle and RAM tests provide the most reliable diagnostic info. ’s idea to clean cooling dust is valid — but on a laptop that means clearing vents and the fan area rather than removing a discrete graphics card.

Recommended Answers

All 13 Replies

Member Avatar for Cross213

Actually one beep is normal. Two beeps could be POST error

Member Avatar for randouche

What does post-error mean? Is that a hardware problem? What should I do about it

Member Avatar for Cross213

POST stands for Power On Self Test. It's not hardware. Refers to routines run immediately after power is applied, by nearly all electronic devices.

Member Avatar for randouche

I don't understand how its a POST error? I don't see anything on my screen, its just black. Is there any diagnosis?

Member Avatar for randouche

UPDATE: I can hear the fan... so i dont think its the fan. umm the scroll, num, and caps lock keys arent lit, and i noticed 2 long beeps (??) but when i checked the beep code there was no such thing. should i take my ram out, clean them and put em back in or something??

Member Avatar for Cross213

Firstly what is your BIOS manufacturer?

Member Avatar for randouche

hmm i dont know how to find that out :-(

Member Avatar for Cross213

Don't you perhaps have your MB box or doesn't it say on startup?

Member Avatar for randouche

Sorry for being so noob about this. But can I ask what is an MB box? And it won't startup, that's the thing. The screens just black with nothing on it and when I try to connect it to another monitor, there's no signal.

Member Avatar for Cross213

MB is motherboard. But never mind that. Try taking out your graphics card, if you have one, and cleaning the dust but DO NOT use a vacuum, rather blow it or use canned air of some sort. If this doesn't work then it could be your graphics card that has given up, assuming you have one of course.

commented: Nice -2
Member Avatar for randouche

Ah mmkay, it could possibly be that, so ill try it. Thanks!

Member Avatar for Cross213

Always a pleasure

commented: Offset the negative rep I last time gave you. +11
Member Avatar for jingda

After you did that and that does not work. Try doing what you said at first. If you have two ram sticks use one first, if you have one ram stick change slot.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.