Overclock D600 1.6G to 2.13G (hardware modification with photos) - Page 3

It sounds like you guys are not tackling the problem correctly to me. Maybe at the time of this post PC2100 was all that was available or it was expensive to get higher rated RAM. Anyway, all you need to do is buy ram rated that is PC3200 RAM. It is guaranteed to work at 400 MHz and lower unlike PC2100 RAM which is only guaranteed to work at 266 MHz or lower.

Edit coming when I get back home.

What'ss your mainboard part number in CPU-Z? (mine is 0G5152)


Here is my story....

I've gone through the process and still missing one piece of puzzle: my CPU.

After overclocking, my laptop just crashes when it's running at 2.13GHz. However, the laptop seems stable in 800MHz mode (when speedstep is disabled in bios).

After thinking / testing, I came to a conclusion that it's my Banias 1.6GHz CPU that cannot handle highly overclocked FSB & Core speed.

So, I am going to give it a shot with a 725/735 CPU. The performance boots is significant IMO, and I can get the CPU for under $20. What do you think? My mainboard is 0G5152.

Actually, my friend who's very knowledgeable in ram architecture, flashed the rom in the timing chip (SPDtools, by using another laptop, he mentioned that dell has disabled a bus for flashing rom on RAM card.)

He re-programmed PC2700 to run @ 266MHz, eliminating memory problem with using PC2100 at much faster speed than they are designed to be used. (my laptop booted and was stable with this just one re-programmed RAMcard)


I will post my results when I get things working.

2.13GHz!!! WOOT

Finally, I got mine working well with Dothan 1.6MHz Processor, overclocked at 2.16MHz. Thanks all for your help!!


Here's a summary of my D600 spec:
PLL: ICS UA430435 (It's diff. model thn OP, but I got it working with the same method.)
CPU: Dothan 1.6GHz (My original cpu was Banias 1.6GHz, but was not stable at 2.13GHz - So I bought Dothan 1.6GHz from ebay $13CAD shipping included.)

RAM:
Combo 1: Moded 512MB PC2700 Card by Kogee* + 256MB PC2700 Samsung**
Combo 2: 256MB PC2700 Samsung** + 256MB PC2100 Samsung***
Both configuration worked well. For someone looking to upgrade ram, modding one PC2700 to run at slower speed would be a great option.
*PC2700 ram was reprogrammed to run at the speed of PC2100 by using another laptop. Some Ram Card allows ROM Flash and some doesn't.
**Original Ram from Dell
*** Purchased locally for $10CAD

Notes:
Getting to the PLL was tricky, but ended up taking apart all the components and the entire process took a good 3~4 hours.

CPU Temperature seems to be ok, with fan running at mid speed @2.13GHz. After cleaning dusts off of fans and heat sinks actually helped.


Pictures:







PassMark CPU Benchmark

My D600 is my main computer. Actually, I was in the market for getting a new laptop, but after this mod, I decided to wait a little more for a better deal after Xmas. I still have both primary and secondary battery holding full charge (4hrs++) and it can play decent games as well.

I was able to see increase on fps on 1.6 and was able to play CS source, which I wasn't able to before the mod. How great!!







Thanks again everyone for your help!!
and sepcial thanks to:
Kogee
M H Scientist
bosslee

I think D600 MOBO takes the timing from the chip on the RAM Card, lowest of the two. Then, this mod increase it by 1.3 times. I think most of smaller size PC2100 work ok in this mod, but M H Scientist has mentioned that when he tried to use larger than 512MB PC2100 block, it was not stable. For me, my friend was able to reprogram the timing chip on 512MB PC2700 RAM and I was able to boot up with this 1 PC2700 RAM Card. With only PC2700 modules (333x1.3 = 432MHz) it crashed after 10seconds after booting up.

I don't think plugging in PC3200 RAM won't work. I am not sure exactly how the MOBO detects the speed, but it was mentioned that it didn't work by M H Scientist in the previous post:

Can someone repost the pictures? The images are gone. Sorry to bring up such an old thread, I'm just stuck with a 600m at the moment and I'm trying to make it useful in the year 2010. If someone still has their modded 600m/d600 lying around I would really appreciate some pictures so I can understand how to do this.

edit- oh my god the ads below the first post on page three led me to believe that there were no more posts on that page. SO I did not see the one picture of the procedure left in this thread. I will try this out tonight! I think my dothan 1.7ghz can handle 2.26ghz just fine, I also have 1 1gb stick of 333, 1 512mb stick of 333 and 1 256mb stick of 266 - I'm hoping I can simply flash the spd values of the 333 modules to 2.5cl at 266mhz in order to attain stability. We'll see how it goes.

got it apart, my board is revision a03 and seems to be missing the part that says 102 right above the ics chip. My board also uses the ics 950810cg pll

I cannot tell what you did in your picture it looks like there is a wire soldered to the left of the pll between the two dots. is that all? That is some fine soldering work if so these things are soooo small. I wonder if the pencil trick might work...

Did you take some pics?

cheers ...

I figured out the method by reading the data sheet on the pll, that's the good news. The bad news is that the method I found required going from fs1 (pin 55) straight down to vdd. The trouble being that that's some tight soldering right onto the legs of the pll and my soldering iron is mighty tired. Once I got it all apart though I had to try... I decided to use the "c" point that you all seem to be talking about from the pictures which are no longer there. It is the small solder point that is linked to pin 55 - which is the second from the left on the top judged by the writing on the pll. I joined one end of a wire to that point and then to vdd which is the leftmost leg on the bottom of the pll. I got it attached but noticed I had crossed the next leg over as well. Upon desoldering the whole damned leg came off. I've decided to call it quits this motherboard is now fubared. These components are much smaller than the images would lead you to believe. If I could find the other point to connect c to rather than the pll leg I would be willing to retry this with the new motherboard I just ordered. Thankfully I was able to find a complete tested d600 for 34 bucks on ebay - bios locked but I have the magic disk for that already. Best part is it comes with the sxga+ screen - 1024x768 was freaking killing me. I need more pixels damnit. If someone can find the procedure to do this - those missing pictures would be wonderful - I'd give it another go and document the whole thing.

as far as memory timings work for those that were wondering - the bios will still believe the ram is running at pc2100 speeds even though it is not. It will use the spd tables from the memory for pc2100 - making it unstable at the high speeds with low latency. the spd tables will have to be flashed to increase the latencies for pc2100 speed.

that's a lot of tweaking just to get the extra .50Ghz with a good chance to blow up the motherboard. But I take my hat off for the effort and for any successful outcome. I personally don't hardware tweak notebooks, only on desktops.

cheers ...

Yesssss! Thank you now I understand how it was done. I'll be getting my new d600 on saturday and it is going under the knife then. and yes it's a pain in the ass for *only* an additional 561mhz cpu speed and 33mhz fsb clock and memory clock but you've got to realize that's a 33% gain at these speeds. It will make quite a difference and I'm not just doing it for the speed I'm doing it for the nerdy fun.

Has anyone tried this on the D610 or D810 machines? I would think that the MB is similar.
I would also like to hear from those who made this mod since it has been 3 years since the last post.

Thanks,
Eunix

Yeah, my laptop is still going strong with the OC, except a minor issues with fan connector and IC joints. (http://www.notebookforums.com/post3187032.html)

If you have the D600 laptop, necessary RAM modules/ access to SPD flashable laptop (D600 can't flash the ram), I don't see why not.

The only downside is ~10~20% decrease in battery life, but system seems much more responsive.

hello OCs,
i have already done OC on my D600 it runs great and is now stable. But i have a problem, while the PSB is 133 MHZ why the memory ration 3:4 according to 1:1, i use the same spead memory DDR 266 512MB but it did not change the ratio. And also while i look frequency in BIOS i see 1.6GHZ according to this in my opinion bios does not recognise the new PSB. so we couldn't get the 1:1 ratio.
is there any solution to this ?? i have attached the printscreens..

and also i test it with DDR 333 512 MB but still the ratio 3:4 its quite confusing.

I thought the ratio of the MOBO BUS speed ad the memory speed is fixed for a particular MOBO design.

3:4 ratio means memory runs faster than FSB, which is good so the system does not wait for memory access.

The whole BUS speed has increased from 100MHz to 133MHz.

I don't think BIOS detects the OCed speed, because it's a hardware mod.

The MOBO takes the lowest speed of the two ram sticks.