I got graphical problems when my Windows7 logon screen loads and when waking up from sleepmode. Tried the change 16bit color depth solution discussed earlier on this thread. But alas it didn't work for me.
Disabled the Dual Core option in the Bios, but that also didn't fix it.
Updated al drivers, same result.
My 6720s has two 1GB memory PC2-5300 (667MHz) modules. I've read that changing to PC2-4200 (533MHz) might solve the problem. So that was an option I wanted to try out. I orderd an 2 GB PC2-4200 module on an dutch auction-site (marktplaats) for €30. If it didn't work and I had to replace the 530 cpu again then I still could use the 2GB module with one of the 1GB module.
A bit strange that HP equiped the Celeron/GM960 with PC2-5300 memory. Maybee it was cheaper then an PC2-4200 module.
Today my 2GB module arrived. I removed both 1GB PC2-5300 modules en placed the 2GB module. W7 started without graphical problems and also the sleepmode works like normal again. Wooohooo.
Afterwards I placed one of the 1GB together with the 2GB and everything keeps working as it should. The memory speed of both modules has been lowered to 533MHz. That's why the 1GB module now also works without any problems with the T5250. Keep in mind that the 2GB module must be placed first and the 1GB last. When you place the 2Gb last the laptop doesn't startup, it almost reboots directly after the bios-sequence.
Intel product info says the GL960 only support max 2GB, but this info isn't correct.
Workaround until my 2GB module arrived:
startup computer -> enter bios -> exit bios without saving
After this procedure Windows starts without graphical errors.
I also disabled all the sleep-functions in W7 powermanagement or changed them to hibernate. When the laptop wakes up from hibernation then it also starts with the bios and you have to follow the procedure.
I want to thank you all for the info I found on this thread.
I also upgraded my HP nx6110 from a celeron 370 to a pentium m 735.
My HP nx6110 had an 910gml chipset and supports fsb 400MHz.
The pentium m 735 is a 400MHz processor and it worked like a charm.
After this succes I placed an pentium m 750, an 533MHz processor.
This one is still in my notebook, but i think is gets a bit warmer then normal
I hope this helps others like the replies on this forum helped me.
My apologizies for this long reply.
I used Everest Ultimate or HWiNFON32 to check my notebook chipset.
CPU-Z and Intel utils said that the chipset was 910/915 for the nx6110 and 960/965 for the 6720s. That's not much help because you need to know what chipset it exactly has.
Last edited by JayDubbafet; 10th August 2010 at 03:18 PM.
I am SO glad that I found this thread. I have been searching for SO long to find a thread dealing with my laptop. I have an MSI VR601, which has an intel GL960. I've searched forever, and haven't come up with an answer, except for here. From the looks of this forum, I'll be able to upgrade to anything that has a socket P 478 pin processor, as long as it's 800 MHz, right? So, could I theoretically go for a T9500? Intel's website says that the T9500 is 800 MHz FSB, with a socket P478. Can I go for this processor? And just so I know what I can fallback on, a T7300 will definitely work? Also, I'm a little confused, what exact kind of RAM do I need to upgrade the RAM? I have 2 Gigs right now...if I wanted to go to 4, would I be able to? Thanks so much.
Last edited by auxilio; 16th October 2010 at 12:27 AM.
Reason: Grammar errors
Hi, I upgraded my Compaq C793VU successfully. It has runned very stable for weeks.
I read the HP Notebook Manual for C700 and disassembled all the parts. It is a little difficult for me to release the keyboard and remove the top cover. It is better to remove the switch cover, then release the keyboard. When you open the memory/wireless module compartment cover, disconnect all 3 cables you see, including the two WLAN antenna cables, thus you will have no trouble later, Important, It's my lesson.
CPU from Celeron M 560 to Core Duo 2 T6670,
Core speed from 2.13GHz to 2.20 Ghz, usu at 1.2GHz by Speedstep, much cooler than before
RAM from 1G x 1 to 1G x 2,
DRAM frequency from 266MHz to 333MHz
The only pity is that Hardware Virtualization was locked off by BIOS although T6670 supports VT. It is complicated for me to modify the BIOS file and change the default setting, although marcan has posted an article on how to do it.
Can I ask some questions:
1. does anyone have an experience of successful upgrade on hp 550 (Intel GM965 Express 800Mhz) from T5xxx (T5270) to T9xxx (T9300) CPU?
I'm pretty sure that it will work with T7xxx series, as it is Merom, but what about T9xxx Penryn?
Will it work at all?
Will it require BIOS upgrade? As I was not able to find HP firmware, as on their official site the only firmware file which has "Initial bios files" in description, so I don't think this is an upgrade. Does anyone know where I can find it, if it will be necessary?
And one more question,
Why the laptop is being shipped with 667Mhz RAM, while it has a 800Mhs FSB? Will the upgrade to 800Mhz RAM boots performance?