- Dec 28, 2015
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- 4,510
Can't find any posts that are exactly like this, so here goes. Purchased a Latitude E6510 from eBay, so don't know unit's history. However, unit has Core i5, 4GB RAM, OEM Dell AC adapter, extended life battery, Windows 7 Pro (unclear if 32- or 64-bit). Was sold as "won't power on", but found that machine actually does power on immediately when the AC adapter is plugged in, so doesn't require power button to be pressed. Without AC adapter & just battery, do have to press power. When it powers up, normal lights come on, hear beeps from inside unit, can hear fan, DVD drive, even hard drive noises. But powers off w/in 30 seconds. Display never shows any signs of life.
I've seen this behavior on Studio's & even a Precision, so I replaced CMOS battery, new RAM (replacing the 2GB sticks w/ 4GB sticks), & still same behavior, testing either or & then both together. Noticed that blue battery LED light flashes when it gets to a point where the normal sounds stop, but only seems to do that when I test w/ battery alone, not when AC adapter is plugged in. Seems like that most closely resembles a memory issue from my research online. However, I replaced both sticks of RAM & even used several sets I have in stock & still no go. Took machine apart & found that there is a ton of what appears to be el cheapo thermal paste on the processor & heat sink (pics attached). It was actually runny, like it would drip from the heat sink to chip while removing it. In the processor pic, it was actually running over onto the gold dots on the right & I wiped those off w/ alcohol, FYI. As you can see, virtually all the contacts right around the main chips are covered over w/ thermal paste.
So, you think I should simply clean up the heat sink & processor w/ alcohol, use Artic Silver 5 sparingly on the processor as one should, & try again? Obviously, can go the motherboard route, but thought I'd see what your experience is. In checking out other posts here, I didn't ever see a resolution on anything that was close to this. Greatly appreciate any guidance you have!
I've seen this behavior on Studio's & even a Precision, so I replaced CMOS battery, new RAM (replacing the 2GB sticks w/ 4GB sticks), & still same behavior, testing either or & then both together. Noticed that blue battery LED light flashes when it gets to a point where the normal sounds stop, but only seems to do that when I test w/ battery alone, not when AC adapter is plugged in. Seems like that most closely resembles a memory issue from my research online. However, I replaced both sticks of RAM & even used several sets I have in stock & still no go. Took machine apart & found that there is a ton of what appears to be el cheapo thermal paste on the processor & heat sink (pics attached). It was actually runny, like it would drip from the heat sink to chip while removing it. In the processor pic, it was actually running over onto the gold dots on the right & I wiped those off w/ alcohol, FYI. As you can see, virtually all the contacts right around the main chips are covered over w/ thermal paste.
So, you think I should simply clean up the heat sink & processor w/ alcohol, use Artic Silver 5 sparingly on the processor as one should, & try again? Obviously, can go the motherboard route, but thought I'd see what your experience is. In checking out other posts here, I didn't ever see a resolution on anything that was close to this. Greatly appreciate any guidance you have!
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