11-05-2011 06:02 AM - last edited on 11-05-2011 06:08 AM by bananaman
11-05-2011 06:39 AM - edited 11-05-2011 06:40 AM
Your reported T61 bios beep codes would indicate you have one of the following failures:
The DIMMS would be my first choice to test so, if you have more than one DIMM installed, try try removing one of them and try to boot, if OK, you have removed the bad RAM; however, if the results are the same, remove the other DIMM and install the one you removed previously. If you can boot OK now, you have isolated the bad RAM. Now, if you can't boot with either stick, then, I guess the RAM is not the problem (unless you have two bad sticks and I doubt that). See the Memory Removal and Installation Guide for more information.
11-05-2011 06:56 AM
I have only one RAM device . I removed the Ram from the slot and tried to start the laptop no display and FAN stop after few second and many short beeps. Even i tried to change the RAM from the another running laptop(T61) but still problem is same .
11-05-2011 07:19 AM
It could be a graphics card failure too; however, since your graphics are inetgrated into the motherboard, I don't have any other suggestions.
11-05-2011 07:24 AM
If your model has nVidia graphics, then you probably have a failed Graphics processor. This is a common problem on machines build before august 2008.
The solution is to replace your system board, although a new system board will cost well above the units resale value, there are more cost effective options. One of the more popular options is to do an Intel conversion, replacing your systemboard and heatsink with one that has Intel graphics. Your performance will decrease slightly, but they are more reliable.
I'm preparing a guide with step by step instructions on fixing these, I'd be glad to send you the rough draft if your interested. I also have an nvidia and an intel board. Message me if your interested.
11-10-2011 01:18 AM
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11-10-2011 01:43 AM
Using the (masked) serial I was able to determing that this is a 6460-EDG:
T9300(2.5GHz), 2GB RAM, 250GB 5400rpm HD, 15.4in 1680x1050 LCD, 128MB nVIDIA Quadro NVS 140M, CDRW/DVDRW, Intel 802.11agn, Bluetooth, Modem, 1Gb Ethernet, UltraNav, Secure chip, Fingerprint reader, 6c Li-Ion, WinVista Business 32
Making it likely TuuS is correct.
11-14-2011 06:46 PM
11-14-2011 07:12 PM
yea normally a bad GPU.
commen in them nvids.
some of them were air solder to the board and the heat twists them off.
i am not sure of that exact model mayby someone might confirm it.
sometimes you can reseat them with heat.
best to go buy a air solder gun if it that case.
some had luck doing a heat lamp and pressure but you really have to read up on that and it a tickey fix.
it worth a try but there plenty of used part t60 out there but thing is there also alot of new cheap laptops as well.
so i would look at all my options most of all with cheap sub 400 doller latops and 200 doller black friday specials.
a used mobo will go 50-150.
You cannot fix the bad nVidia chips like this. The only way to fix the board would be to replace the GPU, which requires special equipment. Replacing the systemboard would be cheaper and more reliable.
11-14-2011 11:28 PM
As far as i know, the nVidia chip is sticked together with the board with expoxy glue - so the chip cannot be replaced.
nickpaton from forum.thinkpads.com had tired to replace the chip with no success. An additional problem is, that single nVidia chips are not available.
That PNt he to me a couple of months ago.