This model was shipped with both memory types. If the CPU has a 400MHz
FSB, then PC800 will work fine. If the FSB of the CPU is 533MHz, then
you should use PC1066 memory (PC800 will work but will slow down the
system). PC1066 memory is backwards compatible and will also work with
a 400MHz FSB (it's not required, and it will not improve performance,
but it will work). When buying memory, be sure that you get the 16-bit
wide RDRAM with 184-pin sockets and not the 32-bit wide type with
232-pin sockets (the latter have contacts in the center of the module
between the two notches).
At this point, there probably is not a lot of price difference between
PC800 and PC1066, the issue is just finding them. The best source
really is used modules on E-Bay.
I would not recommend mixing PC800 and PC1066 modules; it should work,
but I'd be uncomfortable with it.
If you fill all 4 sockets, you will be removing two "C-RIMM" terminator
modules. Do not discard these, you may need them in the future.
Your upgrade options are to add two 128MB modules (that would take you
to 512) or to add two 256 MB modules (that would take you to 768MB).
GTS wrote:
> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
> modules. We want to upgrade this to 512M. The specs I've seen for this
> machine say it uses PC800 RAM so it's odd that it has the PC1066
> modules. Can anyone confirm the specs?
>
> Since PC1066 RIMMS are very expensive and harder to find, if it really
> is designed for PC800 I'm considering getting PC800 for the upgrade and
> mixing the two. I believe it shouldn't be a problem to fill the other 2
> slots with these and that there shouldn't be an compatibility issue,
> i.e. it will all run at the PC800 rating. Is that correct?
> Thanks.
>
Yes, but only if the CPU is running 533MHz FSB as well. PC1066 is NOT required
for a P4 with 400MHz CPU, and the motherboard will boot up and run just fine
with such a CPU and PC800.
The OP really does need to verify the FSB speed of the CPU in the system at
present, and get the appropriate memory. PC1066 will work fine with a 400MHz
FSB P4, but it's way too expensive and scarce... Ben Myers
On Mon, 28 May 2007 14:18:00 -0400, Ralph27 <nospam@nospam.com> wrote:
>Ben Myers wrote:
>> I had a number of 8200s and 8250s showing up here in the last couple of years.
>> And Precision 340/350, too. The 8200 was absolutely 400MHz FSB only, same as
>> the 340... Ben Myers
>>
>> On Mon, 28 May 2007 13:25:13 -0400, "Tom Scales" <tjscales@gmail.com> wrote:
>>
>>> Well, Ben knows better than I. I'll defer to him
>>>
>>>> -----Original Message-----
>>>> From: Tom Scales [mailto:tjscales@gmail.com]
>>>> Posted At: Monday, May 28, 2007 1:01 PM
>>>> Posted To: alt.sys.pc-clone.dell
>>>> Conversation: Dim 8250 Memory
>>>> Subject: Re: Dim 8250 Memory
>>>>
>>>> As I recall, Dell never built the machine to require PC1066. They
>>> must
>>>> have just gotten a deal on them near the end of life of the machine.
>>>>
>>>> PC800-40 should be just fine.
>>>>
>>>> That said, they will still be so expensive that it might be worth
>>>> looking at an outlet machine, like an E520.
>>>>
>>>> Tom
>>>>
>>>>> -----Original Message-----
>>>>> From: GTS [mailto:x@y.net]
>>>>> Posted At: Monday, May 28, 2007 12:19 PM
>>>>> Posted To: alt.sys.pc-clone.dell
>>>>> Conversation: Dim 8250 Memory
>>>>> Subject: Dim 8250 Memory
>>>>>
>>>>> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
>>>>> modules. We want to upgrade this to 512M. The specs I've seen for
>>>>> this
>>>>> machine say it uses PC800 RAM so it's odd that it has the PC1066
>>>>> modules.
>>>>> Can anyone confirm the specs?
>>>>>
>>>>> Since PC1066 RIMMS are very expensive and harder to find, if it
>>>> really
>>>>> is
>>>>> designed for PC800 I'm considering getting PC800 for the upgrade and
>>>>> mixing
>>>>> the two. I believe it shouldn't be a problem to fill the other 2
>>>> slots
>>>>> with
>>>>> these and that there shouldn't be an compatibility issue, i.e. it
>>>> will
>>>>> all
>>>>> run at the PC800 rating. Is that correct?
>>>>> Thanks.
>The late 8250s were 533/1066. See the specs here;
>http://support.dell.com/support/edoc...cs.htm#1105389
"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
news:08em539vqncsrgr2sn97pbubsijs3u7nsf@4ax.com...
> Haven't seen such a mythological beast in my neighborhood. No Loch Ness
> monsters around here either... Ben Myers
>
I know there were a number of posts from people claiming to have one of
those boards, but I've not confirmed that it actually worked/ran at 533mhz
speeds.
Lots of folks were pulling their chipset heatsinks in an attempt to see if
they had the "E" model.
I'll be picky about one little tiny detail. From my experience with the
Dimension 8250 and the very similar Precision 350, if the CPU has a 533MHz FSB,
then only the PC800-40 memory will work. PC800-45 simply causes the usual POST
beeps and won't run. At least, those were my emperical observations about 18
months ago when I got a bunch of them in from a company that was acquired.
PC1066 continues to carry a premium price over PC800, even at thsi late date,
because so little was produced... Ben Myers
On Mon, 28 May 2007 16:18:55 -0400, Barry Watzman <WatzmanNOSPAM@neo.rr.com>
wrote:
>This model was shipped with both memory types. If the CPU has a 400MHz
>FSB, then PC800 will work fine. If the FSB of the CPU is 533MHz, then
>you should use PC1066 memory (PC800 will work but will slow down the
>system). PC1066 memory is backwards compatible and will also work with
>a 400MHz FSB (it's not required, and it will not improve performance,
>but it will work). When buying memory, be sure that you get the 16-bit
>wide RDRAM with 184-pin sockets and not the 32-bit wide type with
>232-pin sockets (the latter have contacts in the center of the module
>between the two notches).
>
>At this point, there probably is not a lot of price difference between
>PC800 and PC1066, the issue is just finding them. The best source
>really is used modules on E-Bay.
>
>I would not recommend mixing PC800 and PC1066 modules; it should work,
>but I'd be uncomfortable with it.
>
>If you fill all 4 sockets, you will be removing two "C-RIMM" terminator
>modules. Do not discard these, you may need them in the future.
>
>Your upgrade options are to add two 128MB modules (that would take you
>to 512) or to add two 256 MB modules (that would take you to 768MB).
>
>
>GTS wrote:
>> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
>> modules. We want to upgrade this to 512M. The specs I've seen for this
>> machine say it uses PC800 RAM so it's odd that it has the PC1066
>> modules. Can anyone confirm the specs?
>>
>> Since PC1066 RIMMS are very expensive and harder to find, if it really
>> is designed for PC800 I'm considering getting PC800 for the upgrade and
>> mixing the two. I believe it shouldn't be a problem to fill the other 2
>> slots with these and that there shouldn't be an compatibility issue,
>> i.e. it will all run at the PC800 rating. Is that correct?
>> Thanks.
>>
Thank you all for the replies. They were definitely helpful.
This PC has a Intel Pentium 4 CPU 2.53GHz and a 533MHz FS bus, and I see,
should use PC1066. I'll have to look around and confer with my client re.
the cost.
EBay does have some, though not the 2 - 128M modules I wanted. Other
sources, the very few that there are, are through the roof.
"GTS" <x@y.net> wrote in message news:biD6i.3564$D31.1415@trnddc01...
> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
> modules. We want to upgrade this to 512M. The specs I've seen for this
> machine say it uses PC800 RAM so it's odd that it has the PC1066 modules.
> Can anyone confirm the specs?
>
> Since PC1066 RIMMS are very expensive and harder to find, if it really is
> designed for PC800 I'm considering getting PC800 for the upgrade and
> mixing the two. I believe it shouldn't be a problem to fill the other 2
> slots with these and that there shouldn't be an compatibility issue, i.e.
> it will all run at the PC800 rating. Is that correct?
> Thanks.
>
Thanks Ben. I may take you up on that. Do you have a couple of 128M PC1066
modules?
"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
news:tu1m5397h4k5tmepmjk51v5ghn769ja2lj@4ax.com...
> If the 8250 processor has a 400MHz front side bus, you can install PC800
> memory,
> and even mix it with PC1066 with no harmful effects to either computer or
> client.
>
> If the 8250 processor has a 533MHz FSB, then PC1066 is called for.
>
> RSVP off line with the CPU speed and I can give you a quote for either
> PC1066 or
> PC800 at a more affordable price than you will see elsewhere. I still
> have a
> little bit of PC1066 in my box of memory toys. This would be well-tested
> RAMBUS memory, guaranteed for a year... Ben Myers
>
Thanks, but this isn't the fist RAMBUS PC I've updated, just the first time
I've had to look for PC1066. I'm faminiliar with the terminators. etc.
BTW, PC800 is very available right now (surprisingly Crucial and New Egg
currently carry it), and the price difference for the much harder to find
1066 is indeed substantial.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:465b3942$0$2857$4c368faf@roadrunner.com...
> This model was shipped with both memory types. If the CPU has a 400MHz
> FSB, then PC800 will work fine. If the FSB of the CPU is 533MHz, then you
> should use PC1066 memory (PC800 will work but will slow down the system).
> PC1066 memory is backwards compatible and will also work with a 400MHz FSB
> (it's not required, and it will not improve performance, but it will
> work). When buying memory, be sure that you get the 16-bit wide RDRAM
> with 184-pin sockets and not the 32-bit wide type with 232-pin sockets
> (the latter have contacts in the center of the module between the two
> notches).
>
> At this point, there probably is not a lot of price difference between
> PC800 and PC1066, the issue is just finding them. The best source really
> is used modules on E-Bay.
>
> I would not recommend mixing PC800 and PC1066 modules; it should work, but
> I'd be uncomfortable with it.
>
> If you fill all 4 sockets, you will be removing two "C-RIMM" terminator
> modules. Do not discard these, you may need them in the future.
>
> Your upgrade options are to add two 128MB modules (that would take you to
> 512) or to add two 256 MB modules (that would take you to 768MB).
>
>
FWIW, my Dimension 8200 with the 2.53Ghz processor uses PC800 RDRAM.
"GTS" <x@y.net> wrote in message news:8bI6i.2323$9G3.1827@trnddc07...
> Thank you all for the replies. They were definitely helpful.
> This PC has a Intel Pentium 4 CPU 2.53GHz and a 533MHz FS bus, and I see,
> should use PC1066. I'll have to look around and confer with my client re.
> the cost.
>
> EBay does have some, though not the 2 - 128M modules I wanted. Other
> sources, the very few that there are, are through the roof.
>
> "GTS" <x@y.net> wrote in message news:biD6i.3564$D31.1415@trnddc01...
>> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
>> modules. We want to upgrade this to 512M. The specs I've seen for this
>> machine say it uses PC800 RAM so it's odd that it has the PC1066 modules.
>> Can anyone confirm the specs?
>>
>> Since PC1066 RIMMS are very expensive and harder to find, if it really is
>> designed for PC800 I'm considering getting PC800 for the upgrade and
>> mixing the two. I believe it shouldn't be a problem to fill the other 2
>> slots with these and that there shouldn't be an compatibility issue, i.e.
>> it will all run at the PC800 rating. Is that correct?
>> Thanks.
>>
>
I need to look in the memory goodie box. I recall I have some sort of PC1066,
and matched, can't recall the capacities... Ben
On Mon, 28 May 2007 21:53:57 GMT, "GTS" <x@y.net> wrote:
>Thanks Ben. I may take you up on that. Do you have a couple of 128M PC1066
>modules?
>
>"Ben Myers" <ben_myers_spam_me_not@charter.net> wrote in message
>news:tu1m5397h4k5tmepmjk51v5ghn769ja2lj@4ax.com.. .
>> If the 8250 processor has a 400MHz front side bus, you can install PC800
>> memory,
>> and even mix it with PC1066 with no harmful effects to either computer or
>> client.
>>
>> If the 8250 processor has a 533MHz FSB, then PC1066 is called for.
>>
>> RSVP off line with the CPU speed and I can give you a quote for either
>> PC1066 or
>> PC800 at a more affordable price than you will see elsewhere. I still
>> have a
>> little bit of PC1066 in my box of memory toys. This would be well-tested
>> RAMBUS memory, guaranteed for a year... Ben Myers
>>
Re: "EBay does have some, though not the 2 - 128M modules I wanted"
Be patient. They will show up. For quite a while quite a few years
ago, I was buying and selling PAIRS of 128MB PC1066 RDRAM modules for
about $70 (per PAIR). I did a couple dozen transactions between $65 and
$80 per pair. I can't imagine that they are higher now, because a lot
of these boards are being decommissioned (or have failed) and the memory
is still good.
GTS wrote:
> Thank you all for the replies. They were definitely helpful.
> This PC has a Intel Pentium 4 CPU 2.53GHz and a 533MHz FS bus, and I
> see, should use PC1066. I'll have to look around and confer with my
> client re. the cost.
>
> EBay does have some, though not the 2 - 128M modules I wanted. Other
> sources, the very few that there are, are through the roof.
>
> "GTS" <x@y.net> wrote in message news:biD6i.3564$D31.1415@trnddc01...
>> My client has a Dimension 8250 533MHz bus with two 128M PC1066 RDRAM
>> modules. We want to upgrade this to 512M. The specs I've seen for this
>> machine say it uses PC800 RAM so it's odd that it has the PC1066 modules.
>> Can anyone confirm the specs?
>>
>> Since PC1066 RIMMS are very expensive and harder to find, if it really is
>> designed for PC800 I'm considering getting PC800 for the upgrade and
>> mixing the two. I believe it shouldn't be a problem to fill the other 2
>> slots with these and that there shouldn't be an compatibility issue, i.e.
>> it will all run at the PC800 rating. Is that correct?
>> Thanks.
>>
>
Re: Dim 8250 Memory 
Linear Mode
