Thanks JoBigShow.
I have ordered and used the TX2 for my processor from Lingloong. Just wonder how much different btw TX2 and TX3?

I will email powercolor for proof if i were to change the thermal paste.

open up the gpu not void the warranty ha?

it really really need to inform tech support to open the gpu?

i plan tu change the thermal paste too..

The Difference is insignificant if your HSF already reached it's maximal limit.
I think the ATi Radeon HD5800-Series Stock HSF haven't reach it's maximal limit by a lot(since JoBigShow said it improved by 6-8C). So, Tuniq TX-3 is more worth it.

hi ATI sifu.. i hav some questions here.
will CM 460W EXTREME POWER sufficient enough to support HD 5750?
and hows the 6-pin PCI Express works? where did the connector connect to?
sorry for the newb question coz i never use ATI card.
but i'm thinking to join this big family..

CM 460Watt Extreme Power Plus PSU is not AFPC and 80+. So, means it's not TRUE POWER. It's maximal power output should be around 360-400Watt only.
It's not recommended(ATi said 450Watt True Power PSU is recommended) but it should be fine running the Radeon HD5750 since it consumes very low power only.

Some PSU doesn't come with the 6-Pin PCI-E Power Cable. You need the converter. The converter can be get either it's bundled with the Graphic Card or you buy it from shops.

their differences will be 1c-2c only.. same as arctic cooling mx2 n mx3. google up n read the reviews will ya?

This post has been edited by law1777: Aug 7 2010, 11:42 AM

in logic i believe it will be vary, it depends on how hot your card comes from hehe.. because i dont think every card have the exact same temperature even tho its identical card.

If only +/- 1c-2c (Tx2 & Tx3), doesn't really matter. It's hardly noticeable.
I will use Tx2 if i were to try it later. But from the stock paste to Tx2 or Tx3, it is really worth since +/- 6c-8c.

This post has been edited by ronaldlee007: Aug 7 2010, 12:09 PM

Actually TX-2 and TX-3's difference in temps are usually around the 2-3C range.

But compared to the crappy stock thermal compoun being used, that's a hella lot of improvement.

But yeah, I've asked before and it's a no go for replacing the thermal compounds on Asus models as removing the stock heatsink voids the warranty. Luckily there are no stickers covering the screws, unlike Palit.

Initially I underestimated the ref. cooler... but when I opened the cooler, it consist of a block of copper with heatpipes which seems more than enough to cool down the gpu.
It's like ATi already thought of that these cards will be under overclocking heat stress, thus create a bit of an 'overkill' cooler if for non-OC usage and decent cooling headroom for OC usage.

The only part I don't like is how the Vram are cooled down, they use some sort of "plastercine" which looks likes Play-Do
With knowing that, I don't dare to OC the vram that high anymore...




Also the way you applied it is also important, the rice grain method isn't that recommended since you can't twirl the cooler while pushing it against the gpu....
So as the credit card method since TX-2 is viscous.

Try to manually spread the paste all across the gpu in a thin layer.
I use plastic (from any plastic bag) and wrap around my index finger... very easy to spread the paste this way, even when the TX-3 is thick and stubborn as hell...

Im using the CM EPP 460W as well with my Asus EAH5770 CUCore.. should be ok..
as for the 6 pin isn't it with the PSU as well? just connect it to the graphic card

5770 advantage of having low power consumption

Regarding that VRAM cooling compound, it's been used in a lot of recent graphic cards. I opened up a GTX295 before and all the VRAM chips were attached to that nasty stuff.

But I never knew you could spread the paste with plastic. I always thought it would just rub off or something.

Trust me, it's waaay better than using your bankcard/MyCard/credit card/student ID, etc. You can sense how thin/thick or how smooth/bumpy the paste lays on the chip from your finger tips..
But of course this method is ideal for thick or viscous paste, other paste that are runny or less viscous you can spread them with a card or the rice grain method with ease...it just happens that TX-2 and 3 are thick in consistency...

@ronaldlee007
the paste usually needs 24hours to cure, so don't really trust the temp readings right after you installed the paste, wait 1-2 days then take a reading of the temps...

Tuniq TX-3 very hard to spread woh.. >.< compared to the CM thermal paste included with my Hyper TX3..

So normally for my CPU if i use the Tuniq TX-3 i just leave a dab there lol..

6°C - 8°C of temperature decrease is not due to the quality of the thermal paste. It's due to the technique and amount of thermal paste applied to the GPU. Usually, stock paste is overly applied, resulting in weak heat conduction.

this is so wrong!! temperature differences ALSO due to the QUALITY of the thermal paste u use

+1. He's indeed wrong.

Ignore the QUALITY 1st.
Applying a lot of Thermal Paste doesn't mean to reduce heat conduction.
Personally, I have tried to test Minor, Optimal and Excessive Thermal Paste for my Processor.
Minor Thermal Paste, resulting temperature goes higher than usual. The heat conduction is not optimized due to micro-gaps between HSF and CPU.
Optimal and Excessive, result. Both give optimal cooling performance. However, excessive of Thermal Paste can cause the Paste to spill everywhere when pressure(from HSF) is applied. It's safe if the thermal paste your use is Non-Electrical Conductive, like Tuniq TX-3.

Now, QUALITY/PERFORMANCE of the Thermal Paste.
Good Thermal Paste(better chemical compound/composition) allows more heat to be transfered while Poor Thermal Paste(lousy chemical compound/composition) allows lesser heat to be transfered.

That PSU have one 6-pin PCIE, just enough for your 5750. Check the site below:
http://www.coolermaster.com/product.php?product_id=3686

To be critically technical, from the official website it stated on the specs that the combined rails can squeezed out 312W while the +3.3W and +5V are 165W, BUT that doesn't mean it has the wattage capacity of 477W! (312W + 165W)
Since CM themselves don't even know the 'true power' of this PSU (only rough estimates) so they stated ONLY the max capacity of the rails and the +3.3 &+5V.
Usually the are shared, when talking about graphic cards, the rails (+12V) are the ones to be focus on.

"...The Radeon HD 5750 idles around 16W~18W and 85W+ under load...."

From above, if the GC occupies about 90W on LOAD, plus 70W~100W~ish (other hardware estimated from a typical medium rig, e.g. 2 core proc maxed out @ 50W~ish), that should leave about 120~ish of head room, which is not much, but still in the borderline of the 'safe zone'.

AMD recommends a PSU with 'true power' above 450W:
http://www.amd.com/us/products/desktop/gra...quirements.aspx

Your PSU isn't in the AMD's certified PSU list:
http://support.amd.com/us/certified/power-...es/listing.aspx

Regardless what AMD says, the question is, can that PSU be use with 5750?

If I'm being technical: you can.
If you're concern of your hardware: I wouldn't really recommend, not enough headroom, at least 200W for safe operation, but still, you can use the PSU.
As for AMD's concern: NO. Because of lawsuit and other liability issues, they don't want to be hold responsibility and held accountable for you damage by other brand's hardware. (meaning most of the time they are exaggerating the PSU wattage needs more can your system would need)

From my long post replying bro seraph8660, you are alright to use the PSU, the 5770 LOAD temps are almost identical to the good ol' HD4850 (around 110W TDP) and back when people use the 4850s, most of them run it fine with similar powered PSUs. But it's just not collectively recommended. (if something were to go wrong.)

Thanks for your clarification.

However, what I am saying is that the magnitude of temperature decrease is not achieved by quality of the thermal paste.

Applying excessive thermal paste indeed reduces heat conduction between the GPU and heatsink. You may try lapping your GPU and not using any thermal paste. The temperature will be lower. This is because the heat conduction of the thermal paste is not as good as direct contact. Hence, applying excessive thermal paste will decrease the performance.