OCing the Parhelia yet??????

[[GDI]Raptor]

How much do you think we can get without changing the volt?
Perhaps 250Mhz with a good HSF??

[P5ycho]

I sure hope so...

So is the supplied heatsink aluminum or copper?

[Cheesekeeper]

According to the info Haig gave us, we should only be able to get another 20MHz without upping the voltage......

[Greebe]

it's Al. As I have stated before Parhelia has an integrated copper heat spreader and it's tin plated to prevent corrosion. So an all copper HS shouldn't at all be neccessary.

[P5ycho]

I wonder if the heatspreader can be removed without damaging the chip? I think this would make quite a difference since i'm planning on watercooling it.

apparently they keep the overclockers in mind, integrating a heatspreader. Keeps them from damaging the core. (and claiming warranty with broken cores)

[knirfie]

this is what im planning on doing with my parhelia



ok i got this pic from tomshardware (and it's a ti4600) but thats because i dont have a parhelia yet.

[ALBPM]

OK Sparky!!!

Be careful

Paul

[P5ycho]

I'm designing a new waterblock myself, pure copper core and the design is a bit like the innovatek series, but more surface area. should easily beat a dangerden, and maybe the rest of the market too. At a dutch forum we are simulating the coooling performance of such a design as we speak. Results should be interesting, but let's not go offtopic on that

[efty]

You guys should use a fem package lke femlab to figure out the optimal cooling system for the parhelia

I would consider a parhelia marvel product at $400.

[P5ycho]

actually, we're using procast for the simulation

[Greebe]

I wonder if the heatspreader can be removed without damaging the chip? I think this would make quite a difference since i'm planning on watercooling it.

P5ycho, sorry guy but that would be like the dumbest thing I've ever heard of doing. Care to go into detail as to why you would want to?

[P5ycho]

the heatspreader adds a layer of thermal paste and a layer of copper, this negatively affects cooling performance.

I've seen people do it with P4's and with the old Celeron 366's, all with good results. I was just wondering if the heatspreader was glued on or anything.

[Wombat]

Just don't try to RMA the thing when you break it.

[P5ycho]

I'm not saying i'm gonna take it off, just checking my options here.

Guess i'd better not mention something like this next time.

[Jutai]

You know everyone is talking about these super cooling solutions for overclocking but I was just thinking... Haig had hinted that a voltage change would be necissary to yield a good overclock, we have also determined the P was clocked so low because it had to meet specific specifications for the AGP spec. maybe the cooling isn't the problem at all maybe the chip doesn't run as hot as we are all saying. I'm thinking the spec. thats holding the P back is the voltage spec. for AGP. Matrox are professionals and they know how to deal with heat issues and they always build their chips to what some would call safe specifications, I think the key to the overclock is the voltage and not the cooling... of course a little water cooling will make any chip happy