Has anyone successfully overclocked p7805u CPU?

thank for the info im new to the whole overclocking thing

 

I guess this got dead ended....? :-(

Guess I will just have to buy a quad core.

 

Any news? Hope your mobo is ok tester.

 

Likewise... I wander if El_Capitans mobo is alright, he last posted about 2 weeks back.

 

to lazy to read back but was he trying the PLL mod?

 

Bump for hope!

 

Well, after a couple weeks of figuring out what happened (borrowed a laptop from a co-worker who has the same laptop), I ended up shorting two of the resistors. I ended up fixing the laptop, and continued with the mod, but could still not get it to work. I think we missed something, or I missed something. Back to the drawing board?

 

can you describe what you tried?

Which pin did you pull high/low?

 

Bump for news.

 

From my understanding you can use PLL ICS9LPRS365BGLF in set FSB. You'll notice it reads the clocks correctly but changes made are not applied. In order to correct this you need to cut the trace on the PLL pin #11 and connect it through a 10k Ohm resistor to ground. This will allow changes to be saved/applied.

I found this information quite some time ago when I was doing my research on overclocking my laptop. I decided against doing it as CPU's are cheap including overclockable extreme series processors. IMHO there is really no need to overclock.

BTW, if you try doing what I've told you I take no responsibility. It's information I gathered off the internet and am sharing freely...

 

can you put an i7 on the gateway? just curious

 

No its an entierly different socket

 

If you have an open Hard drive bay or some other empty cavity(LOL). Couldn't resist..Sorry.

Don't do it! It won't work. Been there, http://forum.notebookreview.com/showthread.php?t=303626&page=55 tried that. Twice with two different Quads. Trust me, ain't gonna happen.

 

good save.

BTW which georgia (US or the country)?

 

Georgia State. US. South Ga, bunch of stinkin' rednecks in these here parts. But not me. Not by my standards, but most people from up North say My accent is southern fer sure. Ain't nerry a one ub em makin a lick 'O sense when they talk though.

 

Any news?
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I have news, I was wrong before when I said the TME mod wouldn't work because setfsb didn't support your chipset.
I just read that on this forum actually so I believed it.

Anyway, setfsb does support your chipset.

All you have to do is pull one pin low. Then setfsb will work.

I will just repost a few things.

If you have the square PLL shape, TME is pin 11.

In the photo another user posted some time ago, you can see a resistor comming off of that pin.

To disable TME you would have to remove that resistor.
then you would have to connect pin 11 (TME) to GND to set logic 0.

Use the resistor you removed to connect the pin to GND.

Then setfsb should work for you.

 

Bump for news

 

moral hazard, what you have said will work on a 7811 FX too ? (7805u and 7811 FX are same motherboard ?)

Thanks

 

Yes it should.

But first check if you have TME mode enabled, and that you have the same PLL.

 

Has anyone Succesfuly disable TME by following this quote? Moral any news?

 

I don't think anyone has done it with this notebook, but if you look here (scroll down to "Successful PLL pinmods using ideas on first post of this thread") you will see some results for other notebooks:
http://forum.notebookreview.com/showthread.php?t=393027

This mod should work. Or at least a similar pin mod to go from 266mhz to 333mhz FSB.

 

If I had the soldering skills I would try this but I dont Plus I dont think 333 would work well with my x9100. Wouldnt that make me go up to 3.829ghz? Now if this were to allow me to change the multiplier, I would think of trying this.

 

Do you have a phoenix trustedcore bios?

 

I'm running the latest gateway bios 9c.17.00. I don't know if that's a trustcore bios. Would the pin mod allow me to change the multiplier?

 

There is no known pin mod right now to change the multi.

The only way I can think of doing it would be either a BIOS mod or software like this:
http://forum.notebookreview.com/showthread.php?t=442046

 

Bumping this for news. Does setfsb supporting our chipset still hold true? Has someone testing this and it didn't work and posted it in another thread or are we waiting on another test subject? Oh and I'd like to give a big thanks to moral hazard and El Capitan (the previous guinea pig).

 

Yes, I have tried this and it does work with SetFSB after the mod.

 

Nice. How hard was it to do the mod?

 

It wasn't that hard to remove the resistor that was attached to pin 11 of the PLL but I found that it was quite hard and fiddly to try and re-attach the resistor to connect pin 11 to GND so I just left it unattached.
Luckily it still worked with SetFSB like that.

 

So you just took off 1 resistor and that was it?
That seems pretty easy, more people should try it

 

Rofl, pretty easy mod

N1 moral hazard and kravis

 

Wow what a boss. What kind of voltages do you get and can you really use a 266MHz FSB mode like HWinFo32 seems to indicate? Also I don't know how people are able to get the turbo boost multiplier to work in both cores without an ability to turn off EIST. Does this mod break EIST or something?

Edit: Did you flash your RAM BIOS and if so what are your clocks? Do you or anyone else know about optimal ratios?

 

I would love to overclock my P7350 but im not sure i feel comfortable doing it at this time. Ive soldered a few times, but i cant afford to brick my only computer. Also wouldnt i need faster ram ?

 

Now if this mod is easy enough, it will create a big question. Should X9100/X9000 people OC their bus to improve performance or is OCing the bus not as beneficial as a higher CPU clock speed?

 

I think you can overclock higher and use less voltage if you overclock the FSB instead of raising the multi.

But the gain might not be worth risking your motherboard for.

 

I did do a VID volt mod on the CPU to bump the voltage from 1.1375v to 1.2000v since at 333.4MHz fsb, the system wasn't that stable.

If you select the "High Performance" power setting in Windows, at idle, HWInfo32 and CPU-Z will tend to show that the CPU is running in it's IDA mode but once you put load on then the CPU will run at its normal max (non-IDA) multipler.

I just use the default 9C.17.00 bios that I had on my laptop but I did also change the RAM SPD from cas 7 to cas 8 for stability.

I noticed that in SetFSB, when I set the PCI-E clock to 100MHz (which I thought was the default clock), I couldn't overclock the GPU core/shader clocks as much with the CPU overclock as I did without using SetFSB. This didn't affect my max graphics memory overclock however.

This made me look at the setfsb - Project Hosting on Google Code project and I managed to get it working on my laptop, modifying it so I can enter an arbitrary FSB. It seems that the default PCI-E clock setting would be around 89.3MHz in SetFSB (100MHz actual??) and that proved likely since my GPU core/shader clocks could then overclock the same with the CPU overclock.

It seems that the Nvidia 9800M GTS GPU core/shader clocks are somehow linked to the frequency of the PCI-E bus and overclocking it will also overclock the GPU clocks.

 

How did you get it working?

 

I'm wondering how the new RAM to bus ratios will affect performance. I've read that the ratios make a big difference, and from personal experience the only ratios I've seen are 2:1, 3:2, and 5:3 on my family's crap Celeron computer. Our computers without FSB overclock are 2:1. With overclock and with leaving the mem clocks the same then the ratio is 8:5.

Edit: Oops I see kravis is using OCed mem so the ratio should be 2:1 still.

 

That's not possible. You have to disable EIST to lock both cores at the IDA multiplier which not all laptops are able to do. Some monitoring utilities will round off the multiplier and show the IDA multiplier on both cores at idle but as soon as any load hits it, the multipliers will sag.

 

I looked at the code and found that the I/O port address was different on my system so I changed it to match and made a few other tweaks to get it working on my machine.

 

Can you please upload a zip file with your code?

 

Yeah kravis if you could make a guide you would go down as one of the legends of the Gateway forum.

 

I've uploaded the modified SetFSB project that works on my P-7805u laptop built on VS2010.

The application looks like below where you can enter a FSB, click "Write" and it will set the nearest FSB just before the value you entered.


I'll look into writing a guide to setup all this stuff sometime.

 

Thanks, I just got VS2010 a few days ago, will install it now.

 

Reviving this thread. I have a 7811FX and I did what kravis did and took the resistor off from pin 11. Setfsb worked and I was able to start moving up and confirming the overclock with superpi. at 2.6ghz the machine locked and when I rebooted, Setfsb no longer works, the bus speed just reverts to default when attempting to set the fsb (except for pci-e speed which goes from 100 to 89). Reflashed the bios to see if that might help but no go. Too bad as 2.5ghz was stable.

 

Ah, I did find that a few times. The better method to prevent this problem is to ground the TME pin via a resistor.
The TME setting may have become enabled for the session after your computer locks up.

What you could do to try and get around this is to completely power-down and unplug your laptop and press power to dissipate the remaining charges (I have my battery off) and then plug it in again.

It used to happen to me earlier but nowadays I never have that problem.

 

Anyone with the pictured quide to do this mod with P7811 laptop? And if i raise the fsb from 266 to 333 my 1066Mhz ram is no good anymore? Have to flash it to use different settings? And if i have T9900 which is running already @3.06 ghz. When i change FSB to 333 does this mean automatic overclock by the system to 4,5 GHZ ? I guess voltmod is also needed :]]]

 

kravis - how did you vid mod for 1.2v? so far it seems like vid3 to vss?

 

Hi there. For a P8400, you need to ground both VID0 and VID2 to get a voltage of 1.2v.