MSI NX8800GT 512M OC memory

[cbolt67]

How badly will no heatsinks on the memory effect my overclock on the memory?

 

[error8]

I guess it won't affect your memory overclock at all. If you have a good airflow over your memory chips then it will stay cool and you can overclock it safely.

 

[bryanW1995]

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

 

[Engineer]

Originally posted by: bryanW1995

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

Would that be because it's GDDR3 instead of GDDR4?

 

[tigersty1e]

Originally posted by: bryanW1995

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

You know, I've heard of this rumor from almost every other website out there.

I'm beginning to think that it was perpetuated by 1 person (or a small handful) and this advice gets repeated and regurtitated.

Personally, I have it at 987 (1974)... and another brand (zotac?) has the memory factory overclocked to 1000 (2000).

I've never heard of an 8800GT failing because of the memory that was OC'd....

Just OC the memory as high as it will go while staying stable...


But back on topic... I would try to put something on those ram chips even if it was poorman's job... Tape some nickels on those ram chips. I think nickel's are mostly copper and should be big enough to cover those chips. Apply thermal compound and tape those suckers on there.

 

[chizow]

Originally posted by: Engineer

Originally posted by: bryanW1995

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

Would that be because it's GDDR3 instead of GDDR4?

Probably due largely to the budget Qimonda kits used on G92 GT/GTS compared to Hynix on the G80s and Samsung on the Ultra. To a lesser degree, # of PCB layers, power phases and voltages could impact memory overclockability but from personal experience and user reports with G92 GT/GTS you will not have much luck going over 1000MHz with the memory when older G80 kits would with ease.

Also, there were a few tests done by ArchAngel that suggest the G92 GT/GTS is bandwidth starved in some games/resolutions with AA with its 256-bit memory bus so faster memory would benefit those looking to run higher resolutions with AA.

 

[error8]

And you think that a nickels will have such a great impact on memory cooling?
I remember reading an article about some guy that tested some OCZ high quality ram with a "complex" heatsink, that OCZ even patented it. After some overclocking he removed the heatsink from the memory and recorded the temperature of the memory chips. And guess what, with the heatsink off the temperature was some 6 C lower then with the heatsink on. The morale of the story is that ram chips don't need serious cooling solutions to work properly or to be OC'ed, just a flow of air over them should suffice. I believe that heatsinks that are on memory modules are just an eye candy for the consumer and it does almost close to nothing for cooling. The same principle can also be applied at graphic cards ram.
Also a nickel has a rough surface and it won't make good contact with the chip so its presence is useless anyway.

 

[BlueAcolyte]

I read on the forums some people have OCed their memory to over 2230 with stock cooler... Must have some samsung chips in there.

 

[Engineer]

Originally posted by: chizow

Originally posted by: Engineer

Originally posted by: bryanW1995

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

Would that be because it's GDDR3 instead of GDDR4?

Probably due largely to the budget Qimonda kits used on G92 GT/GTS compared to Hynix on the G80s and Samsung on the Ultra. To a lesser degree, # of PCB layers, power phases and voltages could impact memory overclockability but from personal experience and user reports with G92 GT/GTS you will not have much luck going over 1000MHz with the memory when older G80 kits would with ease.

Also, there were a few tests done by ArchAngel that suggest the G92 GT/GTS is bandwidth starved in some games/resolutions with AA with its 256-bit memory bus so faster memory would benefit those looking to run higher resolutions with AA.

I just took a peak at my new MSI OC 8800GT card and it has Hynix memory installed. I didn't open it to try to read the exact model number on the memory.

 

[dadams312]

How high can you safely over clock the already over clocked MSI 8800gt?

 

[cbolt67]

Well I just went ahead and put it in without any heatsinks on the memory. I benched it at stock. Now I'm using Rivatuner to oc it. I tried only the core and my scores drop across the board. I find that odd. Anyone know of a good guide on how to oc an 8800GT?

 

[tigersty1e]

http://www.hardwarezone.com/ar...php?id=2435&cid=3&pg=7


Found a good article showing the ram temps are lower when they are bare with a fan blowing over them.

 

[chizow]

Originally posted by: Engineer

Originally posted by: chizow

Originally posted by: Engineer

Originally posted by: bryanW1995

Originally posted by: cbolt67
How badly will no heatsinks on the memory effect my overclock on the memory?

8800gt memory doesn't overclock very well, anyway. anything over 1900-1950 is getting into the red zone from what I've heard. focus on your core, that will net a much greater impact anyway.

Would that be because it's GDDR3 instead of GDDR4?

Probably due largely to the budget Qimonda kits used on G92 GT/GTS compared to Hynix on the G80s and Samsung on the Ultra. To a lesser degree, # of PCB layers, power phases and voltages could impact memory overclockability but from personal experience and user reports with G92 GT/GTS you will not have much luck going over 1000MHz with the memory when older G80 kits would with ease.

Also, there were a few tests done by ArchAngel that suggest the G92 GT/GTS is bandwidth starved in some games/resolutions with AA with its 256-bit memory bus so faster memory would benefit those looking to run higher resolutions with AA.

I just took a peak at my new MSI OC 8800GT card and it has Hynix memory installed. I didn't open it to try to read the exact model number on the memory.

That's good news, I know the early runs were all Qimonda which didn't overclock well at all. I've seen a lot of product differentiation with the 8800GT with many board partners deviating from reference, so if some partners are using Hynix/Samsung over Qimonda that's something I'd certainly factor into a buying decision.

 

[bryanW1995]

jonnyguru posted about the 8800gt memory when they first came out. He stated that running them over 1000 would cause problems with the card (ring bus maybe?) over a period of a month or more iirc. I don't think that it was related to the Qimonda units but the card's design. Anyway, that MSI card is at 660/1900, so it's not going to oc the memory very much in most cases, even with hynix memory.

 

[Engineer]

By the way, this card can now be had as low as $176.98 after rebates, coupon, shipping and PriceGrabber Bonus $5.00 rebate from Chiefvalue.com (See Hot Deals thread)! :Q