HP Paviliom 8275 Pentim 2 300 MHZ to a Performa (Celeron) 600 ?

[Liktalern]

Hi, To make a long story short, I purchased an Evergreen Performa 600 MHZ CPU and tried to upgrade my HP Pentium 2 300. The best I could get it to do was run at 150 mhz in safe mode. I Tried to upgrade the bios with no luck, so I boxed it up and sent it back to them. I
I just received it back with acceptance refused written on the box. I thought before I called them and try to get them to take it back like they agreed to before I purchased it , I would see if anyone had any ideas about how I might get this Performa 600 to run on my system.
Thanks
Mark

[Jon]

If the motherboard doesn't support that processor then there is no way. There is a big difference in the Coppermines and the older cores of the PII's and some older boards just do not support the Coppermine structure.

Afraid you're out of luck. It's possible that board supports up to 600MHz, but if it doesn't support the Coppermine core then it still is going to give you problems.

Only thing I can think of is to check for onboard jumpers. Maybe you are missing something there. If using a slocket make sure that the jumpers on the slocket are correct and correspond with any jumper configuration the motherboard has.

Other than that, I really don't know what to tell you. Check HP's site for tech specs of that motherboard and see what it supports.

[marty]

Doesn't Evergreen have support for this type of upgrade? Don't they have suggestions on their site?

[Liktalern]

They told me before I bought the Performa that they didn't have any records of anyone trying to install the Performa on computer like mine. He told me to try it and if it did not work to send it back. When I asked him what could happen if the CPU wouldn't work with my system, he told me the system probably wouldn't even boot up. It did boot up at 150 MHZ in safe mode. I then tried to set the clock multiplier hoping to get the processor to run at a higher mhz. I noticed that what ever I Set the multiplier to the mhz was about the same. (I used the program that came with the processor to do this). As I tried to find information on the internet about the Performa I found that the Performa 600 comes with a clock multiplier preset at 9 and cannot be changed. I wonder if I would have gotten the Performa 400 or 500 with a lower clock multiplier if it would have worked.

[Slake]

Liktalern (Feb 21, 2001 07:38 a.m.):
........."I thought before I called them and try to get them to take it back like they agreed to before I purchased it , I would see if anyone had any ideas about how I might get this Performa 600 to run on my system.
Thanks
Mark
I am a newbie too but have experience with HP Pavilions. Don't rely soley on my advice. The link below is to a page about your Motherboard which has a 440LX chipset. According to that page you can change the jumpers to make your board run up to 83Mhz. 66Mhz is also selectable. I believe you should try 66Mhz first which should run the processor at 594Mhz. If that works and you want more, you could try 83Mhz to get the processor to 747Mhz. :)
Wait for one of the experienced members to confirm or debunk my theory; you may fry everything if you don't!! :( PCI cards-Voltage issues etc...
You may even have to replace the BIOS EEPROM with a standard one from Asus who manufactured your board if the Evergreen upgrade does not contain some kind of BIOS trick on-board.
Maybe Tim or Jeff or one of the other veterans could look at this link and advize?

http://www.hp.com/cposupport/personal_computing/support_doc/bph05568.html
Also from the above link you could Join the Pavilion 8200 Series message forum and see if anyone else has done this upgrade, or ask the HP support people. They are pretty helpful in general but are kinda tight-lipped when it comes to non HP upgrades.
Good Luck!!

[Liktalern]

Thanks allot for for all the ideas and the information. This should really be a big... help to me. I really appreciate your time and effort.

[Slake]

I have a HP Pavilion 6337z (PII-350). I decided to just get a new Mainboard instead of trying to upgrade. I woulda had to get the new EEPROM (Bios) chip from Asus. HP uses a custom BIOS chip that will not accept a "FLASH" update other than their own, and they ain't gonna release one that supports much of an upgrade.They wanna sell ya a new computer! .Although that woulda been a cheap upgrade, it stll may not have worked. The main thing I've learned so far is to do MASSIVE research before actually buying anything. I bought my Celeron II 600 before verifying I could use it on my board. So now I'm gonna hafta build a system around my processor. Usually OEM computers (HP,Compaq, IBM Aptiva etc..) are not good as a base for overclocking/upgrade. I suggest you check out the CPU database from the main page to see which processors offer the best bang for the buck. The Celeron II 600 is a very good chip to OC. The Abit BE6-II mobo can (sometimes) take this chip over 1 Ghz with good cooling. Browse through the forum and pick up a little info here and there.Bounce your ideas and questions around the forum . These guys -and a gal or two are great. Be persistant with evergreen if you feel you were mislead about their return policy
Good Luck!.

[Liktalern]

Thanks again, I have posted on the HP Pavilion 82 series forum. I guess I'll wait and see what they have to say.

I just wanted to add one thing, I am curious why this Performa 600 MHZ instead of doubling my CPU speed ( 300 MHZ ) it benches at 150 MHZ, half the speed of the CPU the system came with. Is this a coincidence or a hint to what the problem is?