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W700ds Blank screen
W700ds Blank screen
Hi, My W700ds won't post. Here is a description of whats happening during power on sequence. Optical drive lights up and makes noise the lights below the screen lights up and after a second only the Z light the battery light and the power light stays on. After that nothing happens. If i let it sit for a while the fans rpm starts to increase.
Here is what i have tried
Re-seat the ram
Remove CMOS battery
Remove HDDs
Press power button 10 times and hold it for 30 seconds while the battery and the adapter is unplugged
Plug in a display via the display port with an HDMI adapter.
No matter what i do the result is the same.
P.S. capslock numlock and scroll lock buttons does not work.
Here is what i have tried
Re-seat the ram
Remove CMOS battery
Remove HDDs
Press power button 10 times and hold it for 30 seconds while the battery and the adapter is unplugged
Plug in a display via the display port with an HDMI adapter.
No matter what i do the result is the same.
P.S. capslock numlock and scroll lock buttons does not work.
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- Senior ThinkPadder
- Posts: 2063
- Joined: Mon May 28, 2012 5:49 am
- Location: Metro Manila, Philippines
Re: W700ds Blank screen
Did you try booting without any RAM installed?
Daily driver: X220 4291-C91 i7-2620M
Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod

Re: W700ds Blank screen
Here is what happent one long beep 3 short beeps pause 3 short beeps one final long beep
Re: W700ds Blank screen
By the way i have just taken it apart and replaced cpus and gpus thermalpaste. but still no luck
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- Senior ThinkPadder
- Posts: 2063
- Joined: Mon May 28, 2012 5:49 am
- Location: Metro Manila, Philippines
Re: W700ds Blank screen
Tried different RAM?
Daily driver: X220 4291-C91 i7-2620M
Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod

Re: W700ds Blank screen
Here is how I fixed it. I had a p8400 cpu lying around I swapped it with the qx9300 and reset the Cmos. Then it started to work. I have put the qx9300 back in and it also worked. I think this is quite unusual.
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- Senior ThinkPadder
- Posts: 2232
- Joined: Sun Aug 09, 2015 9:25 am
- Location: N. Bellmore, ny
Re: W700ds Blank screen
Quad-core W700 boards will only post with a Q9*** chip installed.
Thinkpad4by3's Law of the Universe.
The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.
The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.
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