[rescue] differences between Ultrasparc IIIi CPU's

[Peter Stokes]

Hi

On the V210 and V240 the motherboards were the same, but two different variants. First gen went to 1.28ghz the second to 1.5ghz. There are speed selection onboard so which CPU you use will be clocked at selected motherboard rate nothing to do with CPU. From memory the fastest V210 was 1.3 something ghz which was a marketing decision I guess but used same board as 1.5ghz V240. Usually the CPU has its tested rating stamped on it eg 1.28. It can be used up to that and sometimes over that at a push eg 1.5 cpu in 1.6ghz board

As to memory try to go for pc2700 as that will run at lowest value I understood. 

Peter

Sent from my iPhone

> On 23 Mar 2023, at 14:37, Jonathan Katz via rescue <rescue at sunhelp.org> wrote:
> 
> Hi there!
> 
> Mixed CPU speeds should work, but would only operate both at the
> slowest clock speed. That's the general SUNW rule of thumb.
> 
> RAM I don't know about. I don't remember if there was an independent
> MMU but thinking that it is a IIIi CPU, that little "i" means
> integrated, with integral stuff like IDE controllers and MMUs (same
> CPUs soldered into the boards of the Sun Blade 100/150, etc.) I guess
> if the different sizes are done by bank it would be OK, but it would
> be worth checking the FEH. I forgot if these took standard things like
> PC3200 RAM or some oddball sun stuff.
> 
>> On Thu, Mar 23, 2023 at 2:13 PM Brian Noonan via rescue
>> <rescue at sunhelp.org> wrote:
>> 
>> So some months ago I added a Sun V210 to my home setup - which came with a single cpu installed.
>> 
>> The part number on that cpu is 1170-1503 Which as far as I can make out is a 1.53 Ghz CPU.
>> 
>> 
>> I just picked up today a Sun Netra V240 with a great amount of corrosion on the chassis and SCSI/Ethernet connectors.
>> 
>> I think it must have been kept in someone's garage for years and has not fared well as a result. I don't think it is really salvageable.
>> 
>> 
>> This machine has a 527-1279 CPU which also seems to be a 1.53Ghz CPU part number.
>> 
>> Ideally I would like to add a second CPU to the Sun V210.
>> 
>> 
>> Can these parts be combined together since they appear to be the same speed?
>> 
>> Also can ram be installed in the system unbalanced?  I have 2GB already in the V210 and got another 1GB with the Netra that
>> 
>> I would also  like to install in the V210.
>> 
>> 
>> Is what I want to do here possible within hardware limits?
>> 
>> Thanks for any assistance.
>> 
>> Brian.
>> 
>> 
>> _______________________________________________
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> 
> 
> 
> -- 
> -Jon
> +44 7792 149029
> 
> _______________________________________________
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