On Tue, 2008-10-28 at 11:45 -0500, Robert Citek wrote: > On Tue, Oct 28, 2008 at 10:58 AM, Theresa Kehoe <[EMAIL PROTECTED]> wrote: > > Why does HP recommend only half of what the mainboard can handle? > > The reason not to recommend 4 GB is probably because of PCI addressing > leaving a memory "hole". There's little point to installing 4 GB of > RAM if your machine won't be able to use it. For details see this > thread:
According to HP's online chat, not quite ... tmk : mainboard has 4 DDR SDRAMM slots Calvin S : Correct. tmk : one is occupied with a 512MB PC3200 DDR-SDRAM chip tmk : three are empty tmk : is it a problem to put a 1024MB PC3200 DDR-SDRAM chip into slot 2? Calvin S : No. You can install it. However, HP recommends to install only 512MB maximum in each slot. tmk : why is that? tmk : i saw that in specs, but no explanation Calvin S : HP has tested with 512MB in each slot and confirmed that PC performs well with this configuration. Calvin S : However, the motherboard manufacturer claims it can take 1 GB per slot. tmk : so because you have not tested option b you recommend option a? tmk : or is there a technical reason? Calvin S : I am afraid, I do not have the specific reason. Calvin S : Please install and check. Calvin S : It should work. > > They currently have only 1 512MB RAM (in the first of four slots) -- is > > there any reason *not* to install a single 1GB RAM into the second of > > the four slots? > > From the specs the mobo is dual channel. I thought dual channel means > the memory needs to be paired. Or am I mistaken? I went and asked HP (live chat with Calvin S the technician). "Unmatched pairs will work". However, if you meet all the requirements for dual channel mode, it provides increased performance over single channel mode. So I am going to order them the 1GB chip, and will let you know how it turns out. Theresa --~--~---------~--~----~------------~-------~--~----~ Central West End Linux Users Group (via Google Groups) Main page: http://www.cwelug.org To post: [email protected] To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] More options: http://groups.google.com/group/cwelug -~----------~----~----~----~------~----~------~--~---
