Subj : Re: New HDD for XP pc
To : august abolins
From : Ed Vance
Date : Fri Mar 31 2017 10:05 pm
03-26-17 17:45 august abolins wrote to Ed Vance about New HDD for XP pc
Howdy! August,
aa> @MSGID: <
[email protected]>
aa> Ed Vance -> Dale Shipp wrote:
EV>> My HP a1430n XP SP3 pc has a AMD 3800+ Dual Core CPU and has been
EV>> acting very slow when starting up or when I start a program.
EV> I couldn't see trashing the two 500MB DDR 400 sticks and buying four 1GB
EV> sticks to fill all the slots, so I decided 3GB should be enough on a pc
EV> with a CPU that run at 2 Mc/s.
EV> The XP OS is 32-Bit and I was told here that the maximum RAM it could use
EV> was 3.8GB iirc.
EV> Is that still true?
aa> G'day Ed. I still settle for XP on a couple of computers here and
aa> have explored the ram upgrade options as you have. XP is indeed
aa> limited to about 3GB ram (I have seen people quoting estimates between
aa> 3.25 and 3.8) So, there is no point going beyond the 3gb that you have
aa> invested in.
aa> I have also bumped up the ram in one specific HP model (it too just had
aa> 2x500mb modules) but the mobo manual indicated that in order to
aa> maintain and activate the fast "Dual channel" processing speeds, the
aa> ram modules had to be in specific slots.
aa> In my case the mobo supported up to 8gb but it only had XP 32-bit
aa> installed, so no point going beyond 3gb. However, to maintain the
aa> dual-channel speeds, the modules had to be "balanced" across the dimm
aa> slots.
aa> Originally, the 2x500mb modules were in slot 1 in each bank. That
aa> triggered the proper dual channel mode. All I had to do was add each
aa> 1GB module right next to the 500mb module in the same bank to maintain
aa> the balance. The "banks" are often colour-coded to indicate their
aa> pairing. BUT, your mobo might have another design.
It has been a long time but I think I left the two 500MB cards where they
were and placed the two 1GB cards in the empty slots.
So I wought to be O.K. on that "Balancing" the dual-channel speed. ???
aa> I won't go into techy details about all that because your mobo manual
aa> could probably explain it with illustrations for your particular mobo.
I probably D/L'd the mobo manual just after buying the pc, I will hafta look.
aa> Also, the pc will only operate as fast as the slowest supported module.
aa> For example, if the 500mb modules are PC4300 rated, don't expect faster
aa> performance if you add PC6300 modules.
I know I bought 1GB DDR 400 RAM but unsure what speed the store had to sell
to me.
aa> The best performance difference would be to main the "dual-channel"
aa> mode vs "single-channel" mode.
aa> Ciao! ..AA
Thanks Much!
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