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#11
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Any ideas why my new RAM won't work?
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#12
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Any ideas why my new RAM won't work?
David wrote: On Sat, 06 Sep 2008 10:06:13 -0600, Ken wrote: You should download the complete manual on your MB if you have not already done so. Some MBs will not accept what is called high density RAM. That is determined most often by how many ICs are on each stick. This could be your problem. Get all the info possible before coming to any conclusions. Thanks to all those who responded. Taking it back to the shop is a last alternative, as I didn't buy them in my own town, and it's a bit tricky getting back. But that's by the by. This concept of high and low density is completely new to me, and I thought I'd make this my first avenue of investigation. I found from the internet the LOW is 64x8 and HIGH is 128x8. I don't understand how these figures related to 256, but ignoring that for the moment, it rung a bell. I HAVE seen (eg) 64x8 mentioned on an (old) ram stick before, in amongst all the various serial nos. on the sticker (sometimes several stickers!) Unfortunately there is no such indication on these new sticks. I've also spent a good half an hour browsing the net with the serial number, and yes, I found dozens and dozens of references (usually from shops!) but whilst they all said SDRAM, PC133 etc., not one single person mentioned if it was a high or low density item. I'm feeling right now that they must be high, and that my motherboard does not cater for them (will start my search for a manual to confirm that shortly) but all the same, I'd love to know if there is any other way I can tell high from low? (In case I ever buy ram in the future, new or used, and it doesn't say which). High density and low density are relative terms. A chip that was considered high density a few years ago is now considered low density. A rule of thumb is a DIMM with 8 chips is considered low density (relative to the motherboard) and a DIMM with 4 or 2 chips is high density. -- Mike Walsh |
#13
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Any ideas why my new RAM won't work?
On Sat, 06 Sep 2008 18:26:25 -0400, kony thoughfully wrote:
On Sat, 06 Sep 2008 19:52:31 GMT, jaster wrote: You paid $200US for 3-256 PC133? versus $90US for motherboard/cpu combo and $40US 2GB DDR. Maybe my eyes are going bad but where did he write that he'd paid $200? 256MB/PC133 is about $15 a module, maybe a little more in retail stores. How much in tax and shipping for the original? If he bought them online, return shipping is ??? If the replacements don't work that's how much more in shipping plus tax? Bottom line, it doesn't matter how much he paid the memory doesn't work! Buying online usually saves a significant amount of money even considering the odds that a small percentage of that savings would eventually be used to return something to the seller. Everyone who regularly deals with computer hardware accepts that sooner or later (Or all the time) something will have to be returned to the seller. What's the other alternative? Having to drive to the brick and mortar store which costs more time, gasoline and vehicle wear. Where I buy my components I get 14 days for cpu and memory and 30 days no question return policy. And prices are usually better than the best NewEgg price. |
#15
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Any ideas why my new RAM won't work?
On Sun, 07 Sep 2008 12:27:01 -0400, Mike Walsh thoughfully wrote:
David wrote: On Sat, 06 Sep 2008 10:06:13 -0600, Ken wrote: You should download the complete manual on your MB if you have not already done so. Some MBs will not accept what is called high density RAM. That is determined most often by how many ICs are on each stick. This could be your problem. Get all the info possible before coming to any conclusions. Thanks to all those who responded. Taking it back to the shop is a last alternative, as I didn't buy them in my own town, and it's a bit tricky getting back. But that's by the by. This concept of high and low density is completely new to me, and I thought I'd make this my first avenue of investigation. I found from the internet the LOW is 64x8 and HIGH is 128x8. I don't understand how these figures related to 256, but ignoring that for the moment, it rung a bell. I HAVE seen (eg) 64x8 mentioned on an (old) ram stick before, in amongst all the various serial nos. on the sticker (sometimes several stickers!) Unfortunately there is no such indication on these new sticks. I've also spent a good half an hour browsing the net with the serial number, and yes, I found dozens and dozens of references (usually from shops!) but whilst they all said SDRAM, PC133 etc., not one single person mentioned if it was a high or low density item. I'm feeling right now that they must be high, and that my motherboard does not cater for them (will start my search for a manual to confirm that shortly) but all the same, I'd love to know if there is any other way I can tell high from low? (In case I ever buy ram in the future, new or used, and it doesn't say which). High density and low density are relative terms. A chip that was considered high density a few years ago is now considered low density. A rule of thumb is a DIMM with 8 chips is considered low density (relative to the motherboard) and a DIMM with 4 or 2 chips is high density. Number of chips does not indicate density. |
#16
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Any ideas why my new RAM won't work?
On Sun, 07 Sep 2008 17:56:39 GMT, jaster
wrote: Buying online usually saves a significant amount of money even considering the odds that a small percentage of that savings would eventually be used to return something to the seller. Everyone who regularly deals with computer hardware accepts that sooner or later (Or all the time) something will have to be returned to the seller. What's the other alternative? Having to drive to the brick and mortar store which costs more time, gasoline and vehicle wear. Where I buy my components I get 14 days for cpu and memory and 30 days no question return policy. And prices are usually better than the best NewEgg price. Great, but if you don't tell us where you buy your components then what good is it to know this? If it's a local store, can we come live with you? |
#17
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Any ideas why my new RAM won't work?
David wrote: As for the motherboard, my little (not-as-reliable-now-as-I-thought) program says it is:- Intel SE440BX-2 Version AA720940-208 Serial GTS285050866 How did you get that info printed out? I recently bought a Dell Inspiron 530, and I haven't been able to find out the make and model number of my motherboard...I would REALLY like to have that info, and the manual that goes with it. Mike Fontenot |
#18
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Any ideas why my new RAM won't work?
On Sun, 07 Sep 2008 12:27:01 -0400, Mike Walsh
wrote: I'm feeling right now that they must be high, and that my motherboard does not cater for them (will start my search for a manual to confirm that shortly) but all the same, I'd love to know if there is any other way I can tell high from low? (In case I ever buy ram in the future, new or used, and it doesn't say which). High density and low density are relative terms. A chip that was considered high density a few years ago is now considered low density. Agreed, chip density continued to climb and newer chipsets continued to support that. Whether it was 66MHz, PC100, 133, DDR, DDR2, etc, were separate divisions occuring concurrent to this perpetual density doubling over time. A rule of thumb is a DIMM with 8 chips is considered low density (relative to the motherboard) and a DIMM with 4 or 2 chips is high density. Not necessarily, in this case with PC133 his 256MB modules have 8 chips. I have 128MB high density PC133 with 4 chips. Generally, except for notebook SO-DIMMs it is becoming rare for much volume of memory to be made that doesn't at least take up the entirely of one side of the PCB... meaning 8 chips or 16. They certainly could make it with 4 but it doesn't sell so well since all the inherant manufacturing, distribution, and every other overhead still has to be paid for so the result is doubling the module capacity from 4 chips to 8 can be a single digit # of dollars difference. |
#19
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Any ideas why my new RAM won't work?
On Sun, 07 Sep 2008 13:37:31 -0600, Mike Fontenot
wrote: David wrote: As for the motherboard, my little (not-as-reliable-now-as-I-thought) program says it is:- Intel SE440BX-2 Version AA720940-208 Serial GTS285050866 How did you get that info printed out? I recently bought a Dell Inspiron 530, and I haven't been able to find out the make and model number of my motherboard...I would REALLY like to have that info, and the manual that goes with it. Mike Fontenot Back then, things were easier IMO. SE440BX & rev.-2 was one of the most popular OEM motherboards. However, today we have Google, which found wikipedia, which claims: "When ordered with an Intel Q6600 Core 2 Quad processor, the 530 is equipped with a FoxConn G33m03 motherboard and a LiteOn 375W power supply. When ordered in any other configuration, the 530 is typically equipped with a FoxConn G33m02 motherboard and a 300W Bestec power supply. The G33m02 and G33m03 are essentially identical except for the power regulation section of the motherboard. Essentially, the G33m02 is a depopulated (cheaper) version of the board which only has 6 voltage regulator IC's as opposed to the 11 voltage regulators on the G33m03. In practice, this means that the G33m02 version of the motherboard is physically incapable of providing enough current to operate the Intel Q6600 CPU. In essence, if you do not order the Quad Core processor with the system initially, you will NOT be able to upgrade it to one later." http://en.wikipedia.org/wiki/Dell_Inspiron So if that's correct, then your board should look at least a little like the following (though cosmetic things like heatsinks or color might differ), http://www.foxconnchannel.com/produc...D=en-us0000319 IMO, pretty sneaky of Dell to change both motherboard and power supply based on which processor is installed, if the above is true. |
#20
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Any ideas why my new RAM won't work?
Many thanks, Kony. That was EXACTLY the information I needed. My Inspiron user's manual is consistent with what you said, including a warning about the motherboards being different for the quad-cpu versions compared with all the other versions. My user's manual also says that the non-quad versions have a 300w power supply, and the quad versions have a 350w supply (a little less than the 375w supply in wiki)...Dell had told me that I had a 350w supply, but I think that was probably bad info, unless the user's manual is out of date. The only downer in that link was that the FoxConn downloadable manual looks like it has been compressed onto two pdf pages of microfilm, and is almost illegible on my wife's MAC. But I've got an email into FoxConn, and I might get my questions answered that way. Thanks again for your help. Mike Fontenot kony wrote: "When ordered with an Intel Q6600 Core 2 Quad processor, the 530 is equipped with a FoxConn G33m03 motherboard and a LiteOn 375W power supply. When ordered in any other configuration, the 530 is typically equipped with a FoxConn G33m02 motherboard and a 300W Bestec power supply. The G33m02 and G33m03 are essentially identical except for the power regulation section of the motherboard. Essentially, the G33m02 is a depopulated (cheaper) version of the board which only has 6 voltage regulator IC's as opposed to the 11 voltage regulators on the G33m03. In practice, this means that the G33m02 version of the motherboard is physically incapable of providing enough current to operate the Intel Q6600 CPU. In essence, if you do not order the Quad Core processor with the system initially, you will NOT be able to upgrade it to one later." http://en.wikipedia.org/wiki/Dell_Inspiron So if that's correct, then your board should look at least a little like the following (though cosmetic things like heatsinks or color might differ), http://www.foxconnchannel.com/produc...D=en-us0000319 IMO, pretty sneaky of Dell to change both motherboard and power supply based on which processor is installed, if the above is true. |
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