Curse

I Dont Do Coke · Oct 06, 2008, 09:23 AM // 09:23

Hi, anyway... I'm considering the option to overclock my Intel Core 2 Duo E7200 and VisionTek Radeon HD 4850. My target for the E7200 is 3.2GHz, which is a 26% overclock; on the other hand, I'm looking to get my HD 4850's core up to 750MHz and memory up to 1200MHz, a 20% OC. Both my CPU and GPU are configured with their stock coolers so I'm not even going to consider any worthwhile overclocking.

I'd like to know which CPU and GPU coolers you guys would recommend to me so I can sustain "cool" temperatures with those overclocks. Links to Newegg would be lovely.

Also, are there any textbook executions to overclocking? I know the GPU is as easy as moving the sliders up and down, but I've no clue about voltages and whatnot.

Lastly, will RivaTuner overclock my card only when it is stressed? ATI CCC overclocks my card on load, but reverts to a 500MHz core and 750MHz memory while at minimal load. Oh, and 1200MHz memory fails to pass in CCC, so I guess I'd need RivaTuner?

Quaker · Oct 06, 2008, 03:07 PM // 15:07

Without getting into a long technical discussion, let me point out that it may be impossible under any circumstances, to get the video memory to run at 1200MHz. That is to say, that particular memory on that particular card may not be able to be pushed that far. When you overclock, you are pushing things towards the limit and the limit will change from sample to sample.

At any rate, if you are serious about trying to achieve that much of an overclock, you will probably need to get into water cooling.

moriz · Oct 06, 2008, 03:28 PM // 15:28

CPU cooler: use stock cooler. i have my E7200 at 3.2ghz with stock cooler, and it idles at 30C. granted, i live in canada, which might have an effect on the temperatures.

for the graphic card, it might be possible for the core to hit 750mhz if you crank the fan up quite a bit (it's been done by many people already). overclocking the memory to 1200mhz will probably require a few modifications. the HD4850 uses cooling pads for the memory. i don't know if removing those pads will still allow the chips to come in contact with the heatsink or not. if it does, buy a tube of arctic ceramique and apply it onto the memory chip. if it doesn't, you'll need a new cooler or some fancy modding. all this might be unnecessary though, since i managed to run mine at around 1100mhz with no modification.

I Dont Do Coke · Oct 06, 2008, 03:34 PM // 15:34

Ok then, fudge the 1200MHz memory... Liquid cooling isn't in my budget and I wouldn't do it for a $140 card anyway.

Eh, I'll reapply AS5 and give the E7200 a go at overclocking then.

deluxe · Oct 06, 2008, 06:00 PM // 18:00

700/1100 is pretty much the limit for the 4850. I would'nt go there with the default single-slot cooling. My sapphire dual-slot runs at above speeds at 60c stressed, I heard the single-slot can hit 90 while being very noisy. If you want alternate cooling, go for either Zalman or Arctic Cooling. You can't go wrong with those brands.

As for cpu cooling, Thermalright is top of the bill for aircooling, pricy too. Arctic has some nice cheap coolers, like the Freezer 7 Pro.

Top: www.thermalright.com Good: www.zalman.co.kr Price/Performance: www.arctic-cooling.com

Ec]-[oMaN · Oct 06, 2008, 06:50 PM // 18:50

I currently haven't seen any dual slot aftermarket solutions yet for the HD 4850 that pull the air out the back of the case. Only stuff I've seen is dual slot passive cooling, or the regular heatsink+fan combo that keeps the hot air in your case.
There are these though that i might consider for you, or just wait abit and im sure they'll make some normal dual slot solutions.
http://www.legionhardware.com/document.php?id=722
http://www.ncixus.com/products/32768...tic%20Cooling/

Which is why I've been eye'in this one.
http://ncix.com/products/index.php?s...anufacture=HIS

moriz · Oct 06, 2008, 07:06 PM // 19:06

there's this:

http://www.newegg.com/Product/Produc...82E16814161244

that cooler does vent heat out of the back of the case.

Ec]-[oMaN · Oct 06, 2008, 07:13 PM // 19:13

Quote:

Originally Posted by moriz

there's this:

http://www.newegg.com/Product/Produc...82E16814161244

that cooler does vent heat out of the back of the case.

Yeah but the OP wants an aftermarket solution, none of which I've heard of yet that is like ICE-Q4 for sale.

I Dont Do Coke · Oct 06, 2008, 09:36 PM // 21:36

I'm looking for an aftermarket cooler, yes. I've sent in my UPC to get my VisionTek HD 4850 rebated down to $140, so getting that HIS HD 4850 isn't really an option...

I Dont Do Coke · Oct 08, 2008, 02:15 PM // 14:15

Quote:

Originally Posted by moriz

CPU cooler: use stock cooler. i have my E7200 at 3.2ghz with stock cooler, and it idles at 30C. granted, i live in canada, which might have an effect on the temperatures.

Bloody hell, I just checked and mine and their cores are at 35ish Celsius at their stock clocks. Did you increase the fan speed or somethin'? @_@ I didn't monitor the temp' in my room but it's hot here in Southern California.

moriz · Oct 08, 2008, 02:41 PM // 14:41

well, i live in canada. my house is now cool enough that i have wear my jacket to stay warm. my pc's case is now cold enough to hurt my fingers if i touch it.

unfortunately, i doubt my pc will heat my room this winter

Quaker · Oct 08, 2008, 05:54 PM // 17:54

I live in Canada and my house is warm enough that I'm wearing a short sleeved shirt. My PC case is dusty, but room temperature (20 deg C) and doesn't hurt when I touch it.

But, to the point - I would assume that it would be difficult to make an aftermarket cooler that exhausts out the back of the computer because the various dimensions, such as the placement of the GPU and RAM on the board, would vary from model to model. This would mean that they would have to make many different coolers, or one that has a bunch of adjustments to it that would make it more expensive.