Intel U5400? Intel HD Graphic?

Hey guys, i've been searching around on google first and couldn't really find a answer to it, which is the reason why im posting here.

My friend has offered me 'cheaply' selling his netbook/notebook Packard bell Dot U for cheaply as £200 which is ALOT better than typical netbook at that price for specs (Intel U5400, HD Graphic, 3GB RAM, 320gb 7200RPM).

I was wondering if its possible to overclock the CPU a little bit? Since the SU4100 and SU7300 are able to reach to 1.9Ghz stable, and I was wondering if the Intel U5400 will be able to reach to 1.8Ghz stable overclock?

Also is there anyway to clock the Intel GMA HD to its full speed (166mhz-500mhz)?

Regards,
Philo

 

Not every processor was made the same. Just because 1 can reach x.xx doesn't mean another chip will be able to.

You might want to visit the ThrottleStop guide.

 

The U5400 is based on the Core i architecture. The SU4100 and SU7300 are both Core 2 based CPUs so these are completely different then the U5400. The U5400 is very similar to a Core i3. These don't support turbo boost so there isn't much that ThrottleStop is going to be able to do to improve performance. ThrottleStop performs miracles on the Core i5 UM and Core i7 UM processors because these support turbo boost. The U5400 does not.

Since there is no turbo boost, the turbo TDP TDC adjustments that also control the Intel GPU could be locked and won't be adjustable. I've never worked with a U5400 so you will need to do some trial and error testing.

With no turbo boost, the only way to overclock one of these is by increasing the base clock and that's only possible if your motherboard is supported by SetFSB. Many laptops are not supported so you might not be able to go beyond 1200 MHz. The default base clock speed is 133 MHz. If you got very lucky and SetFSB worked, you could possibly run at 167 MHz x 9.0 = 1500 MHz but going beyond this speed is very unlikely. A U5400 is a very limited CPU.

 

Why is this CPU limited? I mean why can't it be overclocked much?

 

Also ive acquired that Acer has created a software for there i'series GPU to run at full speed? (Read middle paragraph, although it might be better to read the whole stuff I think)

Review Acer Travelmate 8172T Notebook - Notebookcheck.net Reviews

[The Intel HD graphics integrated into the CPU case can dynamically increase its basic core speed of 166 Mhz to 500 Mhz according to requirement and accommodates the energy-saving designations. Indeed we didn't expect any 3D performance; nevertheless the first results were greatly disappointing. 838 points in the 3D Mark `05, 419 points in the 3D Mark `06 and 476 points on Cinebench OpenGL Shading are by a margin the worst graphics performance values that we have ever measured with Intel HD.

As we test out all possible performance settings whilst troubleshooting, we suppose that the Intel HD graphics only works at the basic speed of 166 Mhz. This was also confirmed by the Tool HW32. Only after we had downloaded and installed the Intel Turbo Boost driver from the Acer support site did the GPU run as it should, up to 500 Mhz. Unusually, we were until now of the opinion that this would have to work with the GPU without drivers. Acer was also of this opinion, as this wasn't pre-installed on the test device.

The re-measured value now corresponds completely to what Intel HD graphics would normally achieve. 2303 points in 3D Mark `05, 1142 points in 3D Mark `06 and 1178 points on Cinebench OpenGL Shading look a lot better. Also on 3D Mark Vantage the feeble 11 little points are replaced by 132.]

 

I think unclewebb pretty much explained in detail why most likely you can't go past 1500MHz.

The U5400 has a Core i archtecture while the SU4100 and SU7300 has the Core2Duo archtecture; these processors are different.

Also, the U5400 is a low-power CPU and is not a normal voltage CPU; the chances of going past 1500MHz is slim. It could also be due to many other factors like if the motherboard is supported by SetFSB for overclocking, maximum ram speed, cooling system of the laptop or other limitations of the CPU, etc.

Furthermore, you can't really overclock the Intel GMA HD. However, I believe the Intel GMA HD is clocked faster when the Core i series CPU is overclocked. They are somehow interrelated.