PC tries hard to start, but nothing! (CPU related)

[iamgenius]

I was doing some work inside my case in an attempt to lower cpu temps. The main thing I did was remounting my TRUE with a new thermal compound (Shin-Etsu MicroSi G751) instead of the original AS5. When I finished, and was ready to push the power button, the machine couldn't fully start. It turns off right after all fans start spinning and it keeps doing in cycle. It seems to me that the cpu is overheating and the machine shuts down to prevent damage to it.

Sounds like I did a horrible job remounting! I did it many times, so why this time i'm Q@#$%# !?

I'll admit though I put more TIM than usual. I used the spread method. I spread it with my finger because it is thick. The layer is NOT transparent. Yes I can say that.

Is applying too much paste this bad????????

The cpu is overclocked so maybe if reset everything it will be able to start and let me see how temps are? Or should I just go and remount again?

If I remount, is it a must to remove all old paste and apply new one, or can I just try to remove some of it somehow and re-spread it and try to get a transparent layer?

All help is greatly appreciated. Thanks.

 

[mbevolution]

I was doing some work inside my case in an attempt to lower cpu temps. The main thing I did was remounting my TRUE with a new thermal compound (Shin-Etsu MicroSi G751) instead of the original AS5. When I finished, and was ready to push the power button, the machine couldn't fully start. It turns off right after all fans start spinning and it keeps doing in cycle. It seems to me that the cpu is overheating and the machine shuts down to prevent damage to it.

Sounds like I did a horrible job remounting! I did it many times, so why this time i'm Q@#$%# !?

I'll admit though I put more TIM than usual. I used the spread method. I spread it with my finger because it is thick. The layer is NOT transparent. Yes I can say that.

Is applying too much paste this bad????????

The cpu is overclocked so maybe if reset everything it will be able to start and let me see how temps are? Or should I just go and remount again?

If I remount, is it a must to remove all old paste and apply new one, or can I just try to remove some of it somehow and re-spread it and try to get a transparent layer?

All help is greatly appreciated. Thanks.

what kind of tim are you using, conductive or non-conductive? is it dripping onto the cpu? if cpu overheats when you wait for several hours and turn it on you should at least get to bios, it shouldn't heat up to 70c that fast.

 

[Athadeus]

Shin-etsu G751 doesn't even appear to be any better for cooling that CPU than AS5 from what I have been reading recently. Try Shin-etsu x23-7783D perhaps.

G751 is non-conductive, but AS5 is. You could be shorting your components if you did a poor job of cleaning off the AS5 and ended up mixing some of it with the G751 and getting it where it should not be.

If you did a good job of cleaning the AS5, you should be able to remount without cleaning it all up. You may even be able to remove some of it by scraping it with a plastic card.

 

[Ben90]

I honestly doubt it is overheating that fast due to a shoddy mount. If you don't even get to the bios screen after you know the processor is cold, something else is amiss.

On an off-topic note, to whoever said AS5 is capacitive not conductive in an older thread, I have a question: Doesn't something need to be conductive in order to be capacitive?

 

[Plimogz]

Having you tried clearing CMOS/pulling the battery?

 

[iamgenius]

I honestly doubt it is overheating that fast due to a shoddy mount. If you don't even get to the bios screen after you know the processor is cold, something else is amiss.

On an off-topic note, to whoever said AS5 is capacitive not conductive in an older thread, I have a question: Doesn't something need to be conductive in order to be capacitive?

That's good to hear. Because I'm not bad at mounting at all. I even use special material to clean the old paste. But what could cause this? What does it mean to try to start then turn off forever with this gigabyte p35-dq6 board?

I tried to clear CMOS by shorting the jumper. Didn't remove the battery though but I will soon!

I clean old paste well like I said, and even it drips, what is it going to short? All there is the heat spreader and the mounting metal surrounding it.


What could it be? Bad PSU ? Bad mobo? damaged cpu? unlikely .....It won't start at all if it is the cpu....right?

My TRUE gone bad? How can a piece of metal go bad?

I'm puzzled. This is my main machine. Please help me.

 

[DrMrLordX]

On an off-topic note, to whoever said AS5 is capacitive not conductive in an older thread, I have a question: Doesn't something need to be conductive in order to be capacitive?

First off, it was the Arctic Silver guys who said that AS5 is capacitive rather than conductive; everybody saying the same thing is just passing along their statement. It's not that big of a deal anymore anyway, since there is precious little reason to use AS5 anymore unless you've already got a huge batch of it or unless you just don't give a damn.

 

[iamgenius]

When I disconnect the 12v cpu power connector and turn on the pc, the fans keep spinning. It doesn't turn back off.

What does that should tell me?

I tried to check some of the PSU trails and they were fine. What two pins should I short on the main mobo power connector so that I can fully test the PSU?

Thanks.

 

[iamgenius]

Thanks for the help guys ! I removed one of the ram sticks and it worked!

Does that mean it is an entirely bad stick? It was seated correctly.

 

[Bish]

I just had this happen on a new built and it turned out to be a bad power supply. I disconnected the DVD drive and it worked so I thought it was the drive. I had two identical builds so I swapped things around until I found the ps at fault.

 

[Markfw]

Thanks for the help guys ! I removed one of the ram sticks and it worked!

Does that mean it is an entirely bad stick? It was seated correctly.

Yes, looks like bad ram. Do a memtest on the other one using a memtest doot cd before trying to boot windows. You wouldn;t want to corrupt anything.

 

[iamgenius]

Both memory sticks are working. All memory slots are working! It is only when I install both sticks, the pc won't start.

What gives? I hate these kinda of probelms.

 

[ehume]

And while you are working on that completely unlovely problem (you have our sympathy) do know there is nothing wrong with your TIM (see this study). I would recommend a three-grains-of-rice or line method instead of your spread method, but your TIM is fine.

If your RAM is OK as individual sticks, could it be a bad slot? You might turn your MB upside down and brush out the slots (gravity is your friend) and try it again. Also, is it possible for you to use different slots when you use the memory.

Finally, what are your Channel A/Channel B mem settings? I've had non-starts from bad memory settings. And one thing I learned from my own Gigabyte MB's - those suckers remember settings even when I jumper the CMOS reset. So I take nothing for granted in BIOS any more.

 

[iamgenius]

Machine keeps changing its mind! It didn't boot one time with one of the sticks inside one slot.

There is definitely something wrong with the slots. I now got it to work with both sticks ! but not a dual channel configuration !

no spare memory.

I'm running memtest now and will come back with the results

 

[iamgenius]

And while you are working on that completely unlovely problem (you have our sympathy) do know there is nothing wrong with your TIM (see this study). I would recommend a three-grains-of-rice or line method instead of your spread method, but your TIM is fine.

If your RAM is OK as individual sticks, could it be a bad slot? You might turn your MB upside down and brush out the slots (gravity is your friend) and try it again. Also, is it possible for you to use different slots when you use the memory.

Finally, what are your Channel A/Channel B mem settings? I've had non-starts from bad memory settings. And one thing I learned from my own Gigabyte MB's - those suckers remember settings even when I jumper the CMOS reset. So I take nothing for granted in BIOS any more.

Actually yeah. I cleared the CMOS but even after that, settings were still there! Don't know why? I kept the battery out like 3 hours!

 

[ehume]

Actually yeah. I cleared the CMOS but even after that, settings were still there! Don't know why? I kept the battery out like 3 hours!

Yup. I think it's not in power-dependent storage. Very spooky.

 

[iamgenius]

Okay. Two passes and no errors so I should conclude that my sticks are fine ! right? Damn you gigabyte for selling me such mobo! I paid good 300 dollars for it.

I also restored my 3.555 GHz at 1.536 Vcore overclock. And load temps went down by a whopping 10 degrees. So remounting did its magic(I also replaced the original fan with an ultra kaze for my TRUE)! I knew I was an expert on it. If it wasn't for this funny problem. I would have been a much happier man by now.

I'm back to normal now except for the dual channel configuration. Thanks for all the help!