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Pavilion dv4000 overclock...

post #1 of 26
10/15/05 at 8:37pm
Thread Starter 
Hello everyone!!!. I would overclock my laptop with pin mod; I have a Pentium M processor at Bus of 400 Mhz and I would change it to 533 Mhz. Is there someone that he takes a part of laptop? because I don't want lose guarantee and I don't know if it is difficult open the laptop and make pin mod on my processor. Thank you..
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post #2 of 26
10/17/05 at 2:28pm
If you open the laptop you lose the guarantee... If you mod the processor you lose the guarantee also...

I recommend not doing it... Its not worth it...
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post #3 of 26
10/18/05 at 4:58am
Thread Starter 
Hello, how hp's assistance can see if I opened my laptop? Thank you
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post #4 of 26
10/18/05 at 1:38pm
They will know because they do a special seal on it...when they open it if for your guarantee, they will hear a sound and feel like a pressure release if it hasn't been opened before. When they are done they reseal it...
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post #5 of 26
10/26/05 at 11:46pm
You will void your warranty and the HP technicians can probably tell.

If you want to overclock your laptop (only possible with the new DDR2 dv4000s, the old ones don't support 533fsb) you will have to take responsibility for any damage.
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post #6 of 26
10/28/05 at 12:57pm
Quote:
Originally Posted by funnyperson1
You will void your warranty and the HP technicians can probably tell.

If you want to overclock your laptop (only possible with the new DDR2 dv4000s, the old ones don't support 533fsb) you will have to take responsibility for any damage.
Yeah...
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post #7 of 26
10/29/05 at 12:02pm
Thread Starter 
Are you sure, that only news dv4000 support 533mhz bus? I think that the chipset it is the same and change only processor from dothan to carmel. But with pin mod you can became a dothan a carmel . When the guarantee will expire I will do the pin mod
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post #8 of 26
10/29/05 at 5:23pm
What's the memory speed used by the current dv4000 model (the one with Ati x700 gpu)???

200-Pin DDR2 SO-DIMM...PC2 3200 or PC2 4200???
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post #9 of 26
10/31/05 at 2:29pm
The latest DV4000 uses DDR2 PC4200/PC4300. In fact, the 256MB module came with my DV4000 is PC4300. I am going to put in another 1GB module DDR2 PC4200 today.
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post #10 of 26
10/31/05 at 3:44pm
I thought so, if I remember correctly the old dv4000s shipped with only 400mhz fsb cpus and PC2700 ram. Of course, I could be wrong...just the way I remembered it for the one week I had looked at the site before I got this replacement for my X1000 and then HP screwed me by updating the whole line (my X1000 had a 1680x1050 screen and a Radeon 9200, while they did comp me with a DVD burner, its still a sizeable downgrade).
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post #11 of 26
10/31/05 at 9:40pm
Quote:
Originally Posted by billcsho
The latest DV4000 uses DDR2 PC4200/PC4300. In fact, the 256MB module came with my DV4000 is PC4300. I am going to put in another 1GB module DDR2 PC4200 today.
Thank you very much for the info.

I asked HP and they answered me this: "The memory used in the customized HP Pavilion dv4000 series is 333 MHz DDR SDRAM PC2700"

We all know that is not true, not for the current model, so WTF is wrong with those guys that are supposed to give us technical support???

I still can't decide:

-2x512=1GB for $150 from HPshopping.com
-1GB from newegg.com + 512 (free upgrade form 256 to 512) from HP = 1.5GB for $88

The 256MB DDR2 PC4300 module and the 1GB DDR2 PC4200 module are compatible, right??? But will the memory run on Dual Channel??? Or both modules have to be the same to enable Dual CHannel???

Billcsho: I hope you post some information about your experiences with the memory upgrade.
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post #12 of 26
11/1/05 at 8:32am
Quote:
Originally Posted by Ericko
Thank you very much for the info.

I asked HP and they answered me this: "The memory used in the customized HP Pavilion dv4000 series is 333 MHz DDR SDRAM PC2700"

We all know that is not true, not for the current model, so WTF is wrong with those guys that are supposed to give us technical support???

I still can't decide:

-2x512=1GB for $150 from HPshopping.com
-1GB from newegg.com + 512 (free upgrade form 256 to 512) from HP = 1.5GB for $88

The 256MB DDR2 PC4300 module and the 1GB DDR2 PC4200 module are compatible, right??? But will the memory run on Dual Channel??? Or both modules have to be the same to enable Dual CHannel???

Billcsho: I hope you post some information about your experiences with the memory upgrade.
There are only two slots, and the free upgrade to 512 would fill both of them.

You would need to get two new sticks to support dual channel (same size), maybe something like this:
http://www.newegg.com/Product/Produc...82E16820144182

Then sell the old sticks here or on ebay.
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post #13 of 26
11/1/05 at 2:50pm
Quote:
Originally Posted by funnyperson1
There are only two slots, and the free upgrade to 512 would fill both of them.

You would need to get two new sticks to support dual channel (same size), maybe something like this:
http://www.newegg.com/Product/Produc...82E16820144182

Then sell the old sticks here or on ebay.
I recommend not selling the old ones if its under warranty because sometimes they want you to put the old ones back in if it needs to be serviced...
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post #14 of 26
11/1/05 at 4:32pm
Sorry for the late reply as the rebate offer for the 1GB Transcend DDR2SODIMM expired last night. I finally received it yesterday and put it in. It works great with the original 256MB DDR2 in Dual Channel mode. I checked the chips on the 256MB module that came with the DV4000, it is DDR2 PC4200 but CPU-Z reported it as PC4300 (the same case with the new 1GB module). The Transcend SODIMM I got uses Samsung chip, however, it is recognized the same as the regular Transcend 1GB (TS128MSQ64V5J) with Elipida chip. In other words, it is identical to the regular Transcend except for the better Samsung chip. It has a CAS latency of 4-4-4-11, which is better than the original 256MB (4-4-4-12). But in dual channel mode, they are both running as the slower one. The addition of memory does not affect SuperPi calculation, but the start-up time is significantly improved. DVD ripping is also very fast. My next test is to convert a 2hr Divx to MPEG2 and burn on DVD which usually takes >8 hours on a Pentium-III 550MHz, now it takes only 90min.

** According to HP, you don't need to match the two SODIMM in DV4000 for dual channel. This is confirmed with CPU-Z on my DV4000 with 256MB on slot 1 and 1GB on slot 2.
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post #15 of 26
11/1/05 at 6:02pm
Quote:
Originally Posted by billcsho
Sorry for the late reply as the rebate offer for the 1GB Transcend DDR2SODIMM expired last night. I finally received it yesterday and put it in. It works great with the original 256MB DDR2 in Dual Channel mode. I checked the chips on the 256MB module that came with the DV4000, it is DDR2 PC4200 but CPU-Z reported it as PC4300 (the same case with the new 1GB module). The Transcend SODIMM I got uses Samsung chip, however, it is recognized the same as the regular Transcend 1GB (TS128MSQ64V5J) with Elipida chip. In other words, it is identical to the regular Transcend except for the better Samsung chip. It has a CAS latency of 4-4-4-11, which is better than the original 256MB (4-4-4-12). But in dual channel mode, they are both running as the slower one. The addition of memory does not affect SuperPi calculation, but the start-up time is significantly improved. DVD ripping is also very fast. My next test is to convert a 2hr Divx to MPEG2 and burn on DVD which usually takes >8 hours on a Pentium-III 550MHz, now it takes only 90min.

** According to HP, you don't need to match the two SODIMM in DV4000 for dual channel. This is confirmed with CPU-Z on my DV4000 with 256MB on slot 1 and 1GB on slot 2.
These are really good news!!!

Now I don't have to be worried anymore, I'll get 2x256 from HP, then remove one module and insert a new Kingston 1GB from newegg.com (Mem+Shipping+2 Year Warranty for only $108). This way I'll have 1.25GB like billscho and a spare 256MB module.

I just hope you are right billscho, 'cause those CPU-Z readings are obviusly wrong

If everything goes as planned, I'll order the laptop this week.
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post #16 of 26
11/2/05 at 4:21am
That is the first time I have heard of not needing to match ram size for dual channel, of course I don't have much experience with DDR2, plenty with DDR though.
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post #17 of 26
11/2/05 at 1:56pm
Hey you guys I'm site newb but please back me up on this thread. http://www.notebookforums.com/showth...ht=zd8000+9300
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post #18 of 26
11/4/05 at 12:07am
I went back to hp.com and found they've changed the memory info for DV4000 today. Now it said dual channel is supported with symmetrical pair.
It is not clear if they have changed motherboard on the DV4000 again or they found they made a mistake on the description. I am going to find some apps other than CPU-Z to check the dual channel status with asymmetrical pair. I'll post the result here after I found out.
By the way, the Transcend 1GB DDR2 SODIMM went further down in price this week. It is now $71.99 after $10 rebate.
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post #19 of 26
11/4/05 at 12:33am
Quote:
Originally Posted by billcsho
I went back to hp.com and found they've changed the memory info for DV4000 today. Now it said dual channel is supported with symmetrical pair.
It is not clear if they have changed motherboard on the DV4000 again or they found they made a mistake on the description. I am going to find some apps other than CPU-Z to check the dual channel status with asymmetrical pair. I'll post the result here after I found out.
By the way, the Transcend 1GB DDR2 SODIMM went further down in price this week. It is now $71.99 after $10 rebate.
I had noticed that too, but since the guys that give technical support by e-mail are always wrong, I thought the web page was wrong too . I would really appreciate if you post your results as soon as possible, 'cause I'm ordering my laptop this saturday, and I need to decide if I should buy the memory from HP or from newegg.com.

Anyway, Thank you very much Billcsho, you have been very nice with your posts.

Maybe this program will help:
http://www.memtest.org/
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post #20 of 26
11/4/05 at 1:45pm
My guess is that the previous description was wrong, I don't see how its possible to run dual channel with different sized sticks of ram.
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