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 Post subject: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 12:58 pm 
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Joined: Sat Mar 03, 2012 7:57 pm
Posts: 6
Location: Hancock, NH, USA
I fixed the battery charger and had it working perfectly but noticed that all the RAM was not being used. Read about the bad socket, so I re-soldered it. Must have had a short somewhere but fixed it. Now, it won't boot and sometimes gives the 4444 beep sequence. After all this work, I hate to junk it. I like the computer. Any suggestions? :(


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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 1:04 pm 
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RBS10000
RBS10000

Joined: Mon Sep 18, 2006 5:17 am
Posts: 11777
Location: Mt. Cobb, PA USA
Motherboard replacement comes to mind.

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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 1:05 pm 
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Senior ThinkPadder
Senior ThinkPadder

Joined: Sun Aug 07, 2005 5:41 pm
Posts: 2364
Location: Paragould AR USA
I tried to re-solder the T30 RAM sockets once....must have made a solder bridge...'cause as soon as I tried to power it up, it burned a hole in a motherboard chip. Probably not exactly the same with yours, but I wouldn't be surprised to find something similar.

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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 2:29 pm 
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Joined: Sat Mar 03, 2012 7:57 pm
Posts: 6
Location: Hancock, NH, USA
Thanks for the quick answers. I didn't see any smoke or smell a burned part. Maybe I will dis-assemble it again - a real pain, and look for something. Thought it might have damaged one of the power supplies, but checked them and both the 3.3V and 5V supplies are ok.


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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 2:41 pm 
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RBS10000
RBS10000

Joined: Mon Sep 18, 2006 5:17 am
Posts: 11777
Location: Mt. Cobb, PA USA
Are we talking about a T30 laptop or some other desktop?
3V and 5V do not come from the laptop's power supply...

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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 6:24 pm 
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Joined: Sat Mar 03, 2012 7:57 pm
Posts: 6
Location: Hancock, NH, USA
I got the schematic from China. There are several switching supplies on the motherboard. From the 16V input, they generate 3V, 5V, the CPU voltage and 2.5V for the Memory chips. They are all ok on my pc, so I am not sure what is causing the problem. Something else must have gotten damaged.


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 Post subject: Re: probably damaged something-no boot
PostPosted: Sat Mar 31, 2012 11:48 pm 
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Senior ThinkPadder
Senior ThinkPadder

Joined: Sun Feb 25, 2007 11:28 am
Posts: 10754
Location: Albrightsville, Pennsylvania
4x4 beep sequence is related to the security chip.

A *very* bad sign in my experience.

If the unit has one of those old removable security chips, take it off and then put it back on the board. It might do the trick. If it doesn't, you're looking at a planar swap.

Good luck.

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Cheers,

George (your friendly FlexView farmer)

Collecting SSDI: A31p, X24,

Abused daily: T43pSFL, R60F, X60T

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 Post subject: Re: probably damaged something-no boot
PostPosted: Sun Apr 01, 2012 11:31 am 
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Joined: Sat Mar 03, 2012 7:57 pm
Posts: 6
Location: Hancock, NH, USA
Unfortunately, you are right. Removed the security chip and put it back. Now it is completely dead. Not even a beep.
Will get another MB. Am getting pretty good at dis-assembling and re-assembling this thing.


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 Post subject: Re: probably damaged something-no boot
PostPosted: Sun Apr 01, 2012 12:38 pm 
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Junior Member
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Joined: Tue May 16, 2006 11:17 am
Posts: 424
Location: IN: Indianapolis
As RBS has advised me in the past (as I am defiantly typing this reply on my T30)...

The T30's ATI Mobility Radeon 7500 video controller with 16 MB graphics memory is simply unable to keep pace with the graphics and video found on today's modern websites.

Your time would be better spent on purchasing a 4:3 standard aspect R61/T61 with integrated Intel graphics,
(i.e. Mobile Intel(R) 965 Express Chipset), while they are still available.

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IBM ThinkPad T30 Type 2366-81U, P4M 1.8 GHz, two HYNIX 512 MB PC2700S DDR(s), Hitachi Travelstar 7K100 (not E7K100) 7200 rpm 100GB HD, SilverStone Raven RVS01 USB Enclosure; Other: 97 Volvo 850-R, 85 Mitsubishi Starion-ES, Keilwerth SX-90R, Ensoniq TS-12, Kawai EP-608


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