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Opteron 170 LCB9E NAKED

post #1 of 27
Thread Starter 
I have a spare Opteron 170 (LCB9E 0652WPMW), so I decided to pop it into my sig rig. Before putting it in, though, I decided to run an experiment.

I decapitated it.

I consulted a variety of sources, bought some box cutter blades, and mustered all of my courage, then removed my CCBBE 0610DPMW Opteron 170 (with lapped IHS). I then took the blade and took the IHS off of the LCB9E 0652WPMW, then mounted it. I didn't bother to downclock it to stock speed, but I did reduce the VCore to stock (1.150V with VCore Overvolt enabled on my board), then saved the settings.

The rig POSTed. Moreover, it's proving to be rock-solid stable, plus it's running a little bit cooler than the CCBBE 0610DPMW (about 6 degrees C lower at the same ambient temperature). The LCB9E 0652WPMW, though, has an insanely high idle temperature compared to the CCBBE 0610DPMW. On load, though, with the IHS off... it's an impressive difference.

More impressive, though, I think, is that it's proving to be Orthos stable so far (it's been running for the last three hours @ 2.800GHz on 1.344V CPU-Z VCore - 1.150V BIOS VCore).

Who knew being a nudist could be so liberating?
    
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post #2 of 27
woot nice job...i did that to my opty 144...it had it working fine, but i wanted to do a reseat...tightened my BT too tight and cracked my core.oops.

but yeah, my temps dropped like 7 degrees when i had it working!
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post #3 of 27
Thread Starter 
Quote:
Originally Posted by TheSubtleKnife View Post
woot nice job...i did that to my opty 144...it had it working fine, but i wanted to do a reseat...tightened my BT too tight and cracked my core.oops.

but yeah, my temps dropped like 7 degrees when i had it working!
Ouch.

This hobby of ours... who knew it took lots of courage to play/work with computers?

Just curious: Did your idle temps also drop? I'm always the first to say that idle temperatures don't really matter much, but I'm intrigued with this LCB9E's very small delta T between full load and idle temperatures (on the hotter of the two cores, it's only about six-to-ten degrees).

(This is the first Denmark/Toledo chip in which I've seen this particular behavior.)

Thanks for your input!
    
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post #4 of 27
idles dropped like 2-3C

Quote:
Just curious: Did your idle temps also drop? I'm always the first to say that idle temperatures don't really matter much, but I'm intrigued with this LCB9E's very small delta T between full load and idle temperatures (on the hotter of the two cores, it's only about six-to-ten degrees).
what exactly does that mean? that idle and load temps are similar?
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post #5 of 27
Thread Starter 
Quote:
Originally Posted by TheSubtleKnife View Post
idles dropped like 2-3C


what exactly does that mean? that idle and load temps are similar?
Yup.

I'm estimating my ambient temperature to be circa 24-25 degrees Celsius (about 76 degrees Fahrenheit), and the hotter of the two cores at idle is at about 42-45 degrees (fluctuating), per Everest Ultimate. In comparison, the cooler core is at around 35-37 degrees C. At load, they both top out at 52 degrees peak (no spikes beyond this temperature), and sustained at about 49-50 degrees C.

I thought it was a bad HSF mount at first, but I confirmed it wasn't when I remounted it. Just strange behavior (albeit one without any apparent consequences).

Of course, the TIM is freshly applied, too. But that very small delta T is most intriguing...
    
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post #6 of 27
that is very odd, are you sure you mounted the HSF to copensate for the missing CPu hight after taking the HSF off?
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post #7 of 27
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Quote:
Originally Posted by TheSubtleKnife View Post
that is very odd, are you sure you mounted the HSF to copensate for the missing CPu hight after taking the HSF off?
Well, as close to absolutely sure, yup.

It's a bolt-down HSF, and the socket cam (the raised portion of the socket) doesn't interfere with the HSF at all.

Strange...
    
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post #8 of 27
but the idles still dropped compared to when you had the IHS on right?
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post #9 of 27
Thread Starter 
Quote:
Originally Posted by TheSubtleKnife View Post
but the idles still dropped compared to when you had the IHS on right?
Um...

Actually I never tested this particular chip's characteristics with the lid on.

Not too helpful, I guess.

Dumdum me should have run that particular test too to establish LCB9E's behavior before the mod.

(Starts hitting self on the head)
    
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post #10 of 27
well, as long as the load temps are good, thats all that really matters, no?
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