RNG for Progressive

[Lucky Larry]

Searched and googled but didn't find a previous conversation on how the RNG works on Progressives. Ex. 6 machines tied to local progressive - Does a single RNG control all 6 machines-dealing hands constantly to each machine? or is each machine's RNG connected to the bank?

[shadowman]

Each machine works exactly like non-progressive machines as far as I know. I can't see any reason why it wouldn't. Random is random.

[Lucky Larry]

shadowman,
I couldn't remember what I'd read previously - old age - . So would there not be a network control to allow for the increase in progressive pot for each hand played or would that be part of the system software program?

[Eduardo]

LL what are you trying to figure out? I am trying to understand the relevance. Are you wondering if two machines could have the same cards if they deal at the same time? The purpose of the RNG is to shuffle and select cards at random. Network control to syncronize the progressive pot would be something else entirely. Just like the RNG doesn't come into play when you choose your game type, that is a different function of the machine. The RNG only matters for things like randomly drawing cards and multipliers.

[Lucky Larry]

Eduardo,
Sorry about the confusing questions. The basic question was whether there is one RNG operating all 6 machines?

I just started playing the progressive more wanted to know more about the basic structure. Also, in discussion with others whiles playing we were reflecting on how several machines would start receiving similar types of hands - ex. 3-4 started receiving aces about the same time, then trip's or FH would show up. Several times 2-3 machines would start being dealt 3-4 to RF often same denomination. While these may not be valid observations they led to the questions about how progressive banks operate.

Sorry probably more confusion. My wife always says if you can't dazzle them with knowledge confuse them with BS...

[spxChrome]

LL what are you trying to figure out? I am trying to understand the relevance. Are you wondering if two machines could have the same cards if they deal at the same time? The purpose of the RNG is to shuffle and select cards at random. Network control to syncronize the progressive pot would be something else entirely. Just like the RNG doesn't come into play when you choose your game type, that is a different function of the machine. The RNG only matters for things like randomly drawing cards and multipliers.
 But even on the same machine their can be different chips. You can easily find this out, for machines running 1 and only 1 chipset you will notice that if you switch denoms that the last hand played is the same.  For machines that run different chips for different denoms the last hand played will differ from denom to denom.  Normally .05 to .25 will run one one chipset and .50 to $1 will run on another and so on.  So if your parnoid look for the ones where the last hand played doesn't change even if you change deonoms.  That means they are running under the same chipset.

[shadowman]

I don't know if that means it's a different chipset or not,. It could be a configuration option as well. Either way would produce the same result.
 
I do know that older machines used to have multiple chipsets in them for each game (and a different denom could be considered a different game I suppose). So, it could simply be due to the age of the machine.

[BillyJoe]

I don't know if that means it's a different chipset or not,. It could be a configuration option as well. Either way would produce the same result.
 
I do know that older machines used to have multiple chipsets in them for each game (and a different denom could be considered a different game I suppose). So, it could simply be due to the age of the machine.
Great question, Larry. Shadow, how about the new server-based machines, like the ones that I played at Aria last week? They had some progressives, as well as single and multi-line machines.
 
I understand that once you are in a particular game at a particular denom, the cards will be dictated by the active RNG. But what about games that have a 'bonus' feature, like STP or Dream Card? Does the frequency of a bonus matter if a machine is server-based versus standalone? Can that frequency be easily adjusted by the casino on the server-based machines?  Your thoughts... 

[shadowman]

IIRC, a server based game is just one that is downloaded from a server when you select it. The RNG is likely just part of the program that gets downloaded. But, you never know. Regulations could come into play.

While different downloads would contain different copies of the RNG program, they are probably identical. Having multiple RNGs just means more maintenance and testing. In other words, it adds costs that provide no benefit to the machine manufacturer.

[Lucky Larry]

[QUOTE=Eduardo]

LL what are you trying to figure out? I am trying to understand the relevance. Are you wondering if two machines could have the same cards if they deal at the same time? The purpose of the RNG is to shuffle and select cards at random. Network control to syncronize the progressive pot would be something else entirely. Just like the RNG doesn't come into play when you choose your game type, that is a different function of the machine. The RNG only matters for things like randomly drawing cards and multipliers.
 But even on the same machine their can be different chips. You can easily find this out, for machines running 1 and only 1 chipset you will notice that if you switch denoms that the last hand played is the same.  For machines that run different chips for different denoms the last hand played will differ from denom to denom.  Normally .05 to .25 will run one one chipset and .50 to $1 will run on another and so on.  So if your parnoid look for the ones where the last hand played doesn't change even if you change deonoms.  That means they are running under the same chipset.[/QUOTE]

Last January I had a lengthy discussion with a long-time slot director at Isle Biloxi. He told me and showed me the same thing about older machine chips. He took us around to various machines and demonstrated how the older chips had the same hand moving from 25¢-50¢ -$1. It was quite interesting. I've checked several older Game King machines since and found many that have duplicated the process.