If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
PROBLEM! registered versus unbuffered ECC sdram pc133
In the past I have built my own systems, this one I got cheap when the
company I worked for went belly up. It's an HP and I am trying to upgrade the RAM. I haven't had such problems before, but this looks like a very informed newsgroup so hopefully someone here can help me. I have an HP x1000 workstation (p4 1.7; i845 chipset) with 512mb RAM already installed (2x128mb,1x256mb; all Micron branded HP, unbuffered ECC PC133 CAS 3 single rank). I do 3D graphics and need more RAM. The manual says it maxes out at 768mb but HP tech support says it has been more recently tested at up to 1 gig per slot (max 3gig). So, I bought three modules of 512 Micron Pc133 ECC Registered CAS 3 single rank but yet my system won't boot up with it...just turns on and goes to fan. The beeps indicate a problem with memory: either incompatible, DOA, or ??? I also asked whether one can mix registered and unbuffered, tech support says yes but can cause problems. Not wanting problems, I bought all registered, figuring I'd just switch out all modules. Tech support ends there. Can't help me. So I ask here a few questions: 1) Are mainboards, HP x1000 workstations in particular, sensitive to registered versus unbuffered RAM (and if so, why?)-- and, if so, is there anything I can do or will my hp x1000 mainboard and this micron ECC registered RAM always be incompatible? What if I turn off ECC in the bios? (not too many other options in the AMI bios). 2) Is there a way to test the memory to make sure it's not DOA? I read somewhere about a program called AMIDIAG and booting from dos to test, but would this work with memory the system can't even boot from? I think I just answered my own question--probably not--but then how else could I test it? 3)Is there anything I can do? Any and all answers would be great. I'm very confused about this. --Scott |
#2
|
|||
|
|||
smayhew wrote:
I have an HP x1000 workstation (p4 1.7; i845 chipset) with 512mb RAM already installed (2x128mb,1x256mb; all Micron branded HP, unbuffered ECC PC133 CAS 3 single rank). I do 3D graphics and need more RAM. The manual says it maxes out at 768mb but HP tech support says it has been more recently tested at up to 1 gig per slot (max 3gig). So, I bought three modules of 512 Micron Pc133 ECC Registered CAS 3 single rank but yet my system won't boot up with it...just turns on and goes to fan. The beeps indicate a problem with memory: either incompatible, DOA, or ??? I also asked whether one can mix registered and unbuffered, tech support says yes but can cause problems. Not wanting problems, I bought all registered, figuring I'd just switch out all modules. Tech support ends there. Can't help me. So I ask here a few questions: .. The 845 chipset does not support registered DIMMs. You need unbuffered, ECC or non-ECC DIMMs. |
#3
|
|||
|
|||
"steven67@" wrote in message ...
smayhew wrote: I have an HP x1000 workstation (p4 1.7; i845 chipset) with 512mb RAM already installed (2x128mb,1x256mb; all Micron branded HP, unbuffered ECC PC133 CAS 3 single rank). I do 3D graphics and need more RAM. The manual says it maxes out at 768mb but HP tech support says it has been more recently tested at up to 1 gig per slot (max 3gig). So, I bought three modules of 512 Micron Pc133 ECC Registered CAS 3 single rank but yet my system won't boot up with it...just turns on and goes to fan. The beeps indicate a problem with memory: either incompatible, DOA, or ??? I also asked whether one can mix registered and unbuffered, tech support says yes but can cause problems. Not wanting problems, I bought all registered, figuring I'd just switch out all modules. Tech support ends there. Can't help me. So I ask here a few questions: . The 845 chipset does not support registered DIMMs. You need unbuffered, ECC or non-ECC DIMMs. Thanks Steven, So, by not support, they won't even work then? Not just that their buffered will be ignored but that the motherboard will completely fail to recognize them? That sucks...since practically everything out there (for 512 and above) is registered. Thanks for the help. --Scott |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
This problem has baffled everyone... | Nick G | General | 46 | May 22nd 04 04:01 AM |
Sound card problem | Phileas | General | 10 | May 9th 04 10:55 PM |
Problem with freezing mouse, Windows Explorer | Jon Davis | General | 3 | April 3rd 04 04:06 AM |
Motherboard only recognizes 128 of my new 512MB SDRAM | Kris | General | 7 | September 23rd 03 03:01 PM |
Freezing, lock up, unresponsive problem. | James | General | 5 | September 5th 03 02:54 PM |