Non-OCing E6300?

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I've just put together a PC with a Gigabyte 965P-DS3P, an E6300 with Tuniq Tower and 2x1GB Geil PC6400C4. The problem being that the CPU won't clock at all. Even a trivial overclock of 280x7 with my RAM underclocked to 700MHz causes crashing under TAT, with temps hitting 63C.

I've tested the RAM at 900MHz in Memtest, so I'm sure that's got plenty of head-room. I've tried re-seating the Tuniq and even swapped out the Tuniq TIM for some AS2 I had lying around, but no difference. Is my CPU just duff? It seems a long way from the general feedback on OCing E6300s.
 
Have you followed the overclocking recipe in the first post of the DS3 thread?

It does sound horribly like you've just got a hot CPU. Have you tried LOTS of AS2? It sort of fills in the gap. It's not perfect, but it can help enormously.
 
You might need to consider lapping... I did it for the first time with my E6300 and it took 15'c off. Have to remember that when it's lapped, you only need a tiny amount of thermal paste - a really really thin layer covering the IHS.

Also if you have the cover that came with the CPU, which covers the pins, put it on the CPU whilst lapping so you don't have to worry about your fingers touching the pins!

But, other than lapping, I don't know what to suggest...
 
I guess I may as well try a few things. I'll pull the cooler off again and check the flatness of the cpu and Tuniq base. A run with more TIM can't hurt, and I suppose if that doesn't work I can even try the stock cooler. I currently have an exciting overclock of 274x7 50-55C at idle, which isn't really what I was hoping for.
 
Also the tuniq might be on too loose or too tight as i hear its tricky to get the screws right.Also check fan settings etc maybe the tuniq fan is being limited.
Also some temp reader give +15 c incorrect
 
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After cleaning the TIM off the cooler, I can see scratches in the shape of the IHS. That would suggest that the edges are higher than the center. Looks like I need to invest in some sandpaper.
 
Yes i will find out tommorow about my chip i have a feeling mine will be the same
and will be joining you.2/3 lately seem to be concave it's a real PITA.
It's not really on tbh whats the die temp on these again? if it's getting close to that on stock cooler under load it's bizzare that intel allows these concave cpu to be sold.
 
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1200 grain and 800 grain sandpaper generally do the trick, start with 800 then finish it off with 1200. If you want to be extra nice to it give it some 1600 or 2000 grain loving at the end ;)
 
Get yourself to somewhere that sells car paint stuff, like Halfords. I picked up a mixed set of wet and dry, 240 - 600 - 800 and 1200 this morning for a couple of quid.

Now to grind some copper...
 
Well, 45 minutes of sanding the IHS and Tuniq heatsink (it wasn't exactly flat either) have resulted in a 5 degree drop at idle and about 7 at load. I haven't had a look to see if I've got any more overclocking room out of it, but the temp drops are worthwhile in themselves.
 
...and the answer is no, I can't get anything more out of it. I can't say I'm not disappointed, I was hoping to get an extra 20% at least out of the chip. I guess that's just how it goes though.
 
What orientation is the Tuniq Tower?

Today I was fitting a friends tuniq on a DS4, and if we had it so that it was blowing air upwards, it would touch the capacitors so wasn't sitting on the processor properly. Had us baffled as to why he was getting load temps shoot upto 70'c+ :p But cured it in the end by having it turned another 90 degrees so it was blowing air out the side instead. He now has idle of 27 and load of 45 @ 3ghz.

Is your heatsink definately all clear - not touching capacitors at all - even slightly?

What method did you use to apply the thermal paste?

Screws are all on nice and tight?

When you took the heatsink off, did you look at the pattern on the bottom of the heatsink? If it's making good contact then it should be the same pattern on the base of the heatsink as there is on top of the processor - if you know what I mean. Like, no gaps. If there's a little bit of paste missing in the middle of the tuniq tower, for example, then there's most likely no contact on that part.
 
The Tuniq is blowing to the back of the board, directly into the output grill of the Sonata. As far as fit goes, I'm very sure there is nothing in the way. I could crank down on the screws more, but only at the expense of unscrewing effort -- the heatsink is well attached.

I think I've done it all. I've lapped the Tuniq and processor. I've tried upping the voltages on the memory, chipset and processor. It all falls over at pathetic overclocks on the CPU. I think I've just got a duff E6300. Perhaps it is badly soldered to the IHS. The only other possibility is that the motherboard is bad. They all work at stock though, so I can hardly complain.
 
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