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| Thread ID: 82444 | 2007-08-27 21:28:00 | PSU PCI-E Connectors | av4tarnz (5829) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 585265 | 2007-08-27 21:28:00 | I've finally built my new system but now I'm plagued with POST failures and I suspect that it is due to the PSU I bought not being big enough. I bought an Enermax 535W PSU with 2 12V/22A rails for use on a system with a Q6600 processor, P5K-E motherboard and GeForce 640MB 8800 GTS and I just noticed on the GPU packaging last night that a 12V/26A rail is the minimum recommended requirement. So I'm back in the market for a PSU and all the models that have a big enough 12V, such as the Silverstone ST85F, have PCI-E connectors that are either 6 or 8 pin. The problem is my GTS has a 4 pin plug for its power supply. So my questions are: Will the PSU come with an adapter to change either 6 or 8 pin to 4 pin or would I have to buy an adapter as well? Or can I just split one of those connecters to get a 4 pin? Thanks Av4tarnz |
av4tarnz (5829) | ||
| 585266 | 2007-08-27 22:09:00 | POST failures I bought an Enermax 535W PSU with 2 12V/22A rails Silverstone ST85F, have PCI-E connectors that are either 6 or 8 pin. Its not an 8 pin. Its 2 4pin joined together. Look closely - you can separate them. And I doubt your problems were caused by the Enermax. I run one on my 8800GTX. What were the POST problems exactly anyyway? What error are you getting? Something about the CPU?? |
pctek (84) | ||
| 585267 | 2007-08-27 23:13:00 | Hi pctek I haven't got the new PSU yet but thanks for letting me know what the story is with the connector. When it fails POST, the BIOS beeps 3 times but nothing comes up on screen. I don't recall which make of BIOS my motherboard has but I've got an Asus P5K-E. What how many amps are on the rail you have your GTX plugged onto? I have had my new build running a couple of times, when restarting I get the POST failures. I have tried the Enermax PSU and the GTS in my old computer and had similar problems. |
av4tarnz (5829) | ||
| 585268 | 2007-08-27 23:17:00 | Its not an 8 pin. Its 2 4pin joined together. Look closely - you can separate them. And I doubt your problems were caused by the Enermax. I run one on my 8800GTX. What were the POST problems exactly anyyway? What error are you getting? Something about the CPU?? Actually, it is an 8 pin pctek, you are confusing the pcie connector to the 12v eps12 8pin |
SolMiester (139) | ||
| 585269 | 2007-08-27 23:25:00 | I run an 8800GTS on an Enermax Whisper II 535W and no issues, and everything in my system is overclocked using more power than stock... So it is unlikely IMO to be the PSU | The_End_Of_Reality (334) | ||
| 585270 | 2007-08-27 23:50:00 | When it fails POST, the BIOS beeps 3 times but nothing comes up on screen. 3 beeps during POST is due to a memory error. You should test your memory using memtest (hcidesign.com) and see what the results are. |
Bozo (8540) | ||
| 585271 | 2007-08-28 00:08:00 | Are you sure the connector on your 8800GTS is 4 pin? Because every 8800GTS I've ever seen has a 6-pin PCI-E connector... 8800GTXs have two of them. All PCI-E connectors should be 6-pin. 4-pin and 8-pin ones are for the 12V supply to the motherboard for the CPU. If it's 8-pin it can break into two 4-pins, either of which can be used. If it's 4-pin you can plug it into an 8-pin socket, using only half of the socket. The P5Ks have 4-pin sockets though. Your PSU is very easily powerful enough for the computer, but it could well be faulty. <--- Edit: Ignore this until you've run memtest86! You are misunderstanding the power ratings. The 6-pin PCI-E connector can carry power from both rails, so the power supply has ample current for it. The first thing to do is definitely memtest86 though. When it does run, is it stable? Double edit: Or use the tester suggested by DemonHunter - much easier than burning a CD |
george12 (7) | ||
| 585272 | 2007-08-28 00:43:00 | Actually, it is an 8 pin pctek, you are confusing the pcie connector to the 12v eps12 8pin No I'm not. I never said it was his PCI-E connector. I just said the 8pin is 2 4pins connected together. So if your board requires 4pin, you split them, if you have one of the boards that uses the whole 8 you leave it as is. Yep, 3 beeps is usualy a ram problem. Check it is seated correctly first, in the correct slots second, then check if it has errors. My Enermax Liberty has 22a on each 12V. |
pctek (84) | ||
| 585273 | 2007-08-28 01:10:00 | ]No I'm not. I never said it was his PCI-E connector[/B]. I just said the 8pin is 2 4pins connected together. So if your board requires 4pin, you split them, if you have one of the boards that uses the whole 8 you leave it as is. Yep, 3 beeps is usualy a ram problem. Check it is seated correctly first, in the correct slots second, then check if it has errors. My Enermax Liberty has 22a on each 12V. Yes you did, you even put it in quotes ***! |
SolMiester (139) | ||
| 585274 | 2007-08-28 01:25:00 | No I'm not. I never said it was his PCI-E connector. I just said the 8pin is 2 4pins connected together. So if your board requires 4pin, you split them, if you have one of the boards that uses the whole 8 you leave it as is. Yep, 3 beeps is usualy a ram problem. Check it is seated correctly first, in the correct slots second, then check if it has errors. My Enermax Liberty has 22a on each 12V. Have you looked at a PSU that conforms to the PCIe v2.0 standard? Or a Radeon 2900XT? The 8pin PCIe connector is a 8pin connector not two 4pins joined together. Your getting confused with the 8pin 12v connector used on the motherboard. I agree with George, never seen a 8800 with a 4pin connector, look again. |
Pete O'Neil (6584) | ||
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